CN114356185A - Image display method and computer equipment - Google Patents
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Abstract
The embodiment of the invention discloses an image display method and computer equipment. In one embodiment, the method comprises: acquiring the image resolution of an image to be displayed and the display resolution of a display area, wherein the image resolution comprises the image transverse resolution and the image longitudinal resolution, the display resolution comprises the display transverse resolution and the display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution; determining an image reduction ratio according to a ratio of a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution, wherein the ratio is larger in value; and reducing the image to be displayed according to the image reduction scale to obtain a thumbnail image, and displaying the thumbnail image in the display area. The implementation mode can realize super-resolution display and support the display to display the image with the image resolution higher than the display resolution.
Description
Technical Field
The invention relates to the technical field of display. And more particularly, to an image display method and a computer apparatus.
Background
The display adaptation of images is a common technical problem at present. The display has its fixed display resolution measured in terms of the number of display pixels. Common display resolutions of the display include FHD (1920 × 1080, that is, transverse display resolution 1920 and longitudinal display resolution 1080, 1920 display pixels are horizontally displayed and 1080 display pixels are vertically displayed on a screen of the display, and the arrangement of the display pixels is 1080 rows and 1920 columns), 4K (3840 × 2160), 8K (7680 4320), and the like. Currently, a display supports displaying an image with a resolution equal to or less than the display resolution, for example, a 4K display supports displaying a 4K image (the 4K image, i.e., the image resolution is 3840 × 2160, the horizontal image resolution is 3840, the vertical image resolution is 2160, and the arrangement of image pixels is 2160 rows and 3840 columns), and also supports displaying an FHD image (the image resolution is 1920 × 1080) and a 720p image (the image resolution is 1280 × 720). When an image with a resolution smaller than the display resolution is displayed, a processor such as a GPU or a CPU of the computer device performs an enlarging process or a stretching process on the image, adapts the image resolution to the display resolution, and then the display performs the displaying process. However, the display does not support displaying images with a resolution greater than the display resolution, for example a 4K display cannot display an 8K image (image resolution 7680 x 4320).
Disclosure of Invention
The present invention is directed to an image display method and a computer device, which solve at least one of the problems of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a first aspect of the present invention provides an image display method, including:
acquiring image resolution of an image to be displayed and display resolution of a display area, wherein the image resolution comprises image transverse resolution and image longitudinal resolution, the display resolution comprises display transverse resolution and display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
Optionally, the method further comprises: and responding to the original image display triggering operation of the displayed thumbnail image, determining a part of the image to be displayed corresponding to the display pixel position of the original image display triggering operation, and displaying the image in the display area.
Optionally, the determining, in response to an original image display trigger operation on the displayed thumbnail image, a portion of the image to be displayed corresponding to a display pixel position of the original image display trigger operation includes:
displaying an original image display selection frame while displaying the thumbnail image in the display area;
and responding to the displacement operation and the confirmation operation of the original image display selecting frame, and determining a part of to-be-displayed image corresponding to the display pixel position and the display pixel size of the original image display selecting frame.
Optionally, the display pixel size of the original image display marquee is designed to be included in a rectangular display pixel region with a preset display pixel size, a horizontal display pixel length of the rectangular display pixel region is a ratio of the display horizontal resolution to the larger numerical value, and a vertical display pixel length of the preset rectangular display pixel region is a ratio of the display vertical resolution to the larger numerical value.
Optionally, the display area is rectangular, and the artwork display pick-up frame is rectangular with the same aspect ratio as the display area.
Optionally, the display pixel size of the original image display marquee is equal to the pixel size of the rectangular display pixel area.
Optionally, the determining a portion of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display marquee includes:
and determining the image pixel positions of the four vertexes of the part of the image to be displayed according to the display pixel positions of the four vertexes of the original image display selecting frame and the ratio of the larger numerical value so as to determine the part of the image to be displayed.
Optionally, the determining, in response to the displacement operation and the confirmation operation on the original image display checkbox, a portion of the to-be-displayed image corresponding to the display pixel position and the display pixel size of the original image display checkbox includes:
responding to the displacement operation of the original image display selecting frame, acquiring the displaced display pixel position of the original image display selecting frame, and displaying the displaced original image display selecting frame in the display area;
and responding to the confirmation operation, and determining a part of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display selection frame.
Optionally, the obtaining the shifted display pixel position of the original image display pick frame in response to the shift operation on the original image display pick frame includes:
displaying a plurality of displacement controls pointing to different directions, and responding to the clicking operation of the displacement controls to obtain the displacement amount of display pixels in the corresponding direction so as to obtain the position of the displaced display pixels of the original image display selecting frame; or the like, or, alternatively,
and responding to the clicking operation of the displacement keys in different directions of the input device, and acquiring the displacement amount of the display pixels in the corresponding direction so as to acquire the displaced display pixel position of the original image display selection frame.
Optionally, the single click operation is set with a displacement step amount of a preset display pixel length.
A second aspect of the invention provides a computer apparatus comprising a display, a memory, a processor and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing:
acquiring an image resolution of an image to be displayed and a display resolution of a display area of the display, wherein the image resolution comprises an image transverse resolution and an image longitudinal resolution, the display resolution comprises a display transverse resolution and a display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
Optionally, the display is a monitor.
The invention has the following beneficial effects:
the technical scheme of the invention can realize super-resolution display, support the display to display the image with the image resolution higher than the display resolution, and is suitable for various displays in various scenes, in particular to monitors applied in the fields of broadcasting, medical treatment and the like.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart illustrating an image display method according to an embodiment of the present invention.
Fig. 2 shows a schematic diagram of a comparison of an image to be displayed and a thumbnail image.
Fig. 3 is a schematic diagram of an original image display checkbox.
Fig. 4 is a schematic diagram illustrating the original image display checkbox exceeding the boundary of the display area.
Fig. 5 is a schematic diagram illustrating the original image display checkbox shown in fig. 3 mapped to an image to be displayed.
Fig. 6 is a schematic diagram illustrating the original image display checkbox shown in fig. 4 mapped to an image to be displayed.
Fig. 7 is a schematic diagram illustrating an image area to be displayed corresponding to an image to be displayed of an adjustment portion.
Fig. 8 is a schematic diagram illustrating an architecture of a computer device according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a computer system implementing the computer device provided by the embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to the following examples and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
The display adaptation of images is a common technical problem at present. The display has its fixed display resolution measured in terms of the number of display pixels. Common display resolutions of the display include FHD (1920 × 1080, that is, transverse display resolution 1920 and longitudinal display resolution 1080, 1920 display pixels are horizontally displayed and 1080 display pixels are vertically displayed on a screen of the display, and the arrangement of the display pixels is 1080 rows and 1920 columns), 4K (3840 × 2160), 8K (7680 4320), and the like. Currently, a display supports displaying an image with a resolution equal to or less than the display resolution, for example, a 4K display supports displaying a 4K image (the 4K image, i.e., the image resolution is 3840 × 2160, the horizontal image resolution is 3840, the vertical image resolution is 2160, and the arrangement of image pixels is 2160 rows and 3840 columns), and also supports displaying an FHD image (the image resolution is 1920 × 1080) and a 720p image (the image resolution is 1280 × 720). When an image with a resolution smaller than the display resolution is displayed, a processor such as a GPU or a CPU of the computer device performs an enlarging process or a stretching process on the image, adapts the image resolution to the display resolution, and then the display performs the displaying process. However, the inventors have found that displays do not support displaying images with a resolution greater than the display resolution, for example 4K displays cannot display 8K images (image resolution 7680 x 4320).
The inventor also finds that, for some types of displays, such as monitors that are applied in broadcasting, medical treatment, and the like and are becoming more popular, it is often necessary to support point-to-point display to present the picture effect without loss, where the point-to-point display is to completely display each image pixel of an image, which is displayed in one-to-one correspondence with the display pixels of the display area of the monitor (each image pixel has one display pixel to display), so as to completely restore the image without loss of details. Currently, the display resolution of a mainstream monitor is 4K, so that a 4K image and an image with a lower image resolution than the 4K image can be displayed in a point-to-point display manner (for example, the 4K image is displayed in a full screen, and the low resolution image is displayed in a display area corresponding to the image resolution, for example, the FHD image can be displayed on the 4K monitor in a half-screen display); however, it is impossible to display an image having a resolution higher than the display resolution, such as an 8K image, or to display an image having a resolution higher than the horizontal display resolution only in the horizontal direction or an image having a resolution higher than the vertical display resolution only in the vertical direction, and further to display the images point to point.
In view of this, an embodiment of the present invention provides an image display method, including:
acquiring the image resolution of an image to be displayed and the display resolution of a display area, wherein the image resolution comprises an image transverse resolution and an image longitudinal resolution, the display resolution comprises a display transverse resolution and a display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
Therefore, the image display method provided by the embodiment can realize super-resolution display, and support the display to display the image with the image resolution higher than the display resolution, and the image can be displayed no matter whether only the transverse image resolution is greater than the transverse display resolution, only the longitudinal image resolution is greater than the longitudinal display resolution, or the transverse image resolution and the longitudinal image resolution are respectively greater than the transverse display resolution and the longitudinal display resolution. The image display method provided by the embodiment is suitable for various types of displays in various scenes, particularly monitors applied in the fields of broadcasting, medical treatment and the like.
The image display method provided in this embodiment may be implemented by a Computer device with data processing capability, specifically, the Computer device may be a Computer with data processing capability, including a Personal Computer (PC), a mini-Computer or a mainframe, or may be a server or a server cluster with data processing capability, and the present embodiment is not limited thereto.
Next, an image display method provided by the present embodiment will be described taking, as an example, application to a computer apparatus having a monitor from the viewpoint of a processing apparatus having a data processing capability.
An embodiment of the present invention provides an image display method, as shown in fig. 1, including the steps of:
s110, obtaining the image resolution of an image to be displayed and the display resolution of a display area, wherein the image resolution comprises an image transverse resolution and an image longitudinal resolution, the display resolution comprises a display transverse resolution and a display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution.
In a specific example, it is assumed that the image resolution of the image to be displayed is X × Y, the display resolution of the display region is M × N, the image lateral resolution is X, the image longitudinal resolution is Y, the display lateral resolution is M, and the display longitudinal resolution is N. For example, if the display area is in a full-screen display mode of a 4K monitor, the display resolution of the display area is 3840 × 2160, the horizontal display resolution is 3840, the vertical display resolution is 2160, and the arrangement of the display pixels is 2160 rows and 3840 columns, for a total of 8294400 display pixels. Further, the image resolution of the image to be displayed is 7680 × 4320 (i.e., the image to be displayed is an 8K image), 7680 × 6480, 1920 × 4320, or 7680 × 1080, and so on.
In the non-full-screen display mode, the display resolution of the display area may be obtained according to display parameters such as the proportion of the display area, for example: in the case of half-screen display on a 4K monitor, the display resolution of the display area is 3840 × 1080; in the case of left half screen display of a 4K monitor, the display resolution of the display area is 1920 × 2160; when the display window of the 4K monitor occupies 1/4 of the full screen area and the aspect ratio of the display window is the same as the aspect ratio of the entire display screen (that is, the shape of the display window is reduced in an equal ratio to the entire display screen shape), the display resolution of the display area is 1920 × 1080.
Taking the monitor as a 4K monitor as an example, in this embodiment, for example, if it can receive 8K image signals, the signal interface thereof needs to be designed as follows: the device comprises a 4-channel 12G-SDI Interface (SDI, digital component serial Interface) or a 4-channel HDMI2.0 Interface (HDMI, High Definition Multimedia Interface), wherein the 4-channel 12G-SDI Interface supports the input of 8K 2SI and SQD (Square Division) (according to SMPTE ST 2082-12 protocol), and the 4-channel HDMI2.0 Interface supports the input of 8K SQD (according to HDMI2.0 protocol).
For another example, if the display resolution of the monitor is 1920 × 1080(FHD monitor), in the present embodiment, it may receive 8K image signals, 4K image signals, and the like. The signal interface design supporting the reception of 8K image signals is similar to that described in the previous paragraph; the signal interface design supporting receiving the 4K image signal may be: a 1-way 12G-SDI interface (compliant with protocol SMPTE ST 2082-10), or a 4-way 3G-SDI interface (compliant with protocol SMPTE ST 425-5), or a 1-way HDMI2.0 interface (compliant with protocol HDMI2.0), or a 4-way HDMI1.4 interface (compliant with protocol HDMI 1.4).
S120, determining an image reduction ratio according to a ratio with a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution.
In this embodiment, after the image resolution of the image to be displayed and the display resolution of the display area are acquired, it is necessary to determine an image reduction ratio for performing image reduction processing subsequently. The rule adopted by the embodiment is that the horizontal and vertical scales are reduced in an equal way without changing the overall shape of the image, and the image deformation caused by different degrees of compression in two directions is avoided.
Continuing with the foregoing example, in the case where the display resolution of the display area is 3840 × 2160, i.e., M is 3840, and N is 2160:
if the image resolution of the image to be displayed is 7680 × 4320, that is, X is 7680 and Y is 4320, X/M is 2, Y/N is 2, and the image reduction ratio N is Max (2,2) is 2;
if the image resolution of the image to be displayed is 7680 × 6480, X/M is 2, Y/N is 3, and the image reduction ratio N is Max (2,3) is 3;
if the image resolution of the image to be displayed is 1920 × 4320, X/M is 0.5, Y/N is 2, and the image reduction ratio N is Max (0.5,2) is 2;
if the image resolution of the image to be displayed is 7680 × 1080, X/M is 2, Y/N is 0.5, and the image reduction ratio N is Max (2,0.5) is 2.
S130, carrying out reduction processing on the image to be displayed according to the image reduction proportion to obtain a thumbnail image, and displaying the thumbnail image in the display area.
Continuing with the foregoing example, after the image reduction ratio n is determined, the image to be displayed is subjected to reduction processing by n times to obtain a thumbnail image that can be displayed in the display area, and the thumbnail image is displayed in the display area. It should be noted that the reduction processing performed on the image to be displayed by n times is performed on both the horizontal image resolution and the vertical image resolution of the image to be displayed by n times, so as to avoid image deformation.
For example, in the case where the display resolution M × N of the display region is 3840 × 2160:
for an image to be displayed with an image resolution of 7680 × 4320, as shown in fig. 2, the image to be displayed with an image resolution X × Y of 7680 × 4320 shown on the left side of fig. 2 has Y rows and X columns of image pixels, pixel positions (pixel coordinates) of image pixels at four vertices of the image to be displayed, namely, upper left, lower left, upper right and lower right, are (0, 0), (Y, 0), (0, X) and (Y, X), respectively, and an image reduction ratio N is 2, then the image resolution of a thumbnail image shown on the right side of fig. 2 is 3840 × 2160, which is equal to the display resolution M × N of the display area, and at this time, the display area is required to display the thumbnail image in full screen;
for an image to be displayed with an image resolution of 7680 × 6480, if the image reduction ratio n is 3, the image resolution of the thumbnail image is 2560 × 2160, and at this time, when the display area displays the thumbnail image, a blank area is left in the lateral direction, the thumbnail image can be displayed in the lateral direction of the display area, and the left and right blank areas can be filled with black, for example;
for an image to be displayed with an image resolution of 1920 × 4320, if the image reduction ratio n is 2, the image resolution of the thumbnail image is 960 × 2160, and at this time, when the display area displays the thumbnail image, a blank area is left in the lateral direction, the thumbnail image can be displayed in the lateral direction of the display area, and the blank areas on the left and right can be filled with black, for example;
for an image to be displayed with an image resolution of 7680 × 1080, the image resolution of the thumbnail image is 3840 × 540 when the image reduction ratio n is 2, and at this time, when the display area displays the thumbnail image, a blank area is left in the vertical direction, the thumbnail image can be displayed in the middle of the display area in the vertical direction, and the blank areas above and below can be filled with black, for example.
It is to be understood that, since the image reduction ratio n in the present embodiment is determined based on the resolution ratio in the lateral or longitudinal direction and the image reduction processing is to reduce the resolution of the lateral image and the resolution of the longitudinal image of the image to be displayed in synchronization, the image pixel size of the thumbnail image is 1/n of the image to be displayed2For example, the image reduction scale is 2, the image pixel size of the thumbnail image is the image to be displayed 1/4. It will be appreciated that the image pixel size is calculated as the number of image pixels, i.e. the number of image pixels comprised by the imageHowever, it is also possible to obtain the image resolution, for example, that the image resolution of an 8K image is 7680 × 4320, and the 8K image includes 4320 rows and 7680 columns of image pixels, for a total of 33177600 image pixels.
For example, the image to be displayed may be reduced based on a plurality of image reduction algorithms such as a linear interpolation algorithm, a bilinear interpolation algorithm, a trilinear interpolation algorithm, a nearest neighbor interpolation algorithm, a lagrange interpolation algorithm, a polynomial interpolation algorithm, and a bicubic interpolation algorithm, which is not limited in this embodiment.
As shown in fig. 1, in a possible implementation manner, the image display method provided in this embodiment further includes:
and S140, responding to the original image display triggering operation of the displayed thumbnail image, determining a part of to-be-displayed image corresponding to the display pixel position of the original image display triggering operation, and displaying the part of to-be-displayed image in the display area.
Note that, in step S130, no matter which image reduction algorithm is used, the image reduction processing performed on the image to be displayed is lossy, and the thumbnail image can present the entire information but some details are lost. Therefore, the implementation mode provides a convenient interactive mode, and the user can autonomously select part of images to be displayed at positions required to be viewed to perform point-to-point display through original image display triggering operation of the thumbnail images, so that the display mode is switched from the thumbnail display mode to the point-to-point display mode, the requirement of the monitors and other displays on the point-to-point display is met, namely, each image pixel of the images to be displayed is completely displayed without performing scaling processing on the images to be displayed, the image pixels of the images to be displayed are displayed in one-to-one correspondence with the display pixels of the display areas of the monitors and other displays (each image pixel has one display pixel to be displayed), and the images to be displayed are completely restored without losing details.
In one possible implementation manner, the determining, in response to an original image display trigger operation on the displayed thumbnail image, a part of images to be displayed corresponding to a display pixel position of the original image display trigger operation includes:
displaying an original image display selection frame while displaying the thumbnail image in the display area;
and responding to the displacement operation and the confirmation operation of the original image display selecting frame, and determining a part of to-be-displayed image corresponding to the display pixel position and the display pixel size of the original image display selecting frame.
For example, the artwork display checkbox is displayed in an upper layer of the layer displaying the thumbnail image, i.e., the artwork display checkbox is displayed in a floating layer, for example, the artwork display checkbox is displayed in a semi-transparent manner, so as to prevent the edge of the artwork display checkbox from blocking the thumbnail image displayed in the lower layer. The original image display marquee is initially displayed at the center of the display area, for example. And displaying an identifier such as a cross star mark at the center of the original image display selection frame so as to facilitate the user to confirm the position of the original image display selection frame and the area of the part of the image to be displayed which is required to be viewed point to point.
The interaction mode based on the original image display marquee provided by the implementation mode has the advantages of intuition, convenience and the like, and can realize that a user can intuitively and conveniently select a position to be checked through displacement operation on the original image display marquee displayed on a displayed thumbnail image, and after confirmation, confirmation operation is applied to point-to-point display of a part of an image to be displayed corresponding to the position to be checked.
In a possible implementation manner, the display pixel size of the original image display marquee is designed to be included in a rectangular display pixel area with a preset display pixel size, the horizontal display pixel length of the rectangular display pixel area is the ratio of the display horizontal resolution to the larger value, and the vertical display pixel length of the preset rectangular display pixel area is the ratio of the display vertical resolution to the larger value.
It is understood that the display pixel size and the display pixel length are calculated by the number of the display pixels, respectively, and are not based on the physical size of the display pixels. Continuing with the above example, if the image resolution of the display area is M × N, and the image reduction scale determined in step S120 is N, the horizontal display pixel length of the rectangular display pixel area is M/N, the vertical display pixel length of the preset rectangular display pixel area is N/N, and the shape of the original image display frame is, for example, a rectangle, a circle, an ellipse, or the like.
In this embodiment, although the shape of the original image display frame is not limited, the maximum value of the size is limited so as to avoid the case where the image to be displayed in the portion of the point-to-point display is smaller than the original image display frame or the image to be displayed in the portion corresponding to the original image display frame needs to be displayed after the enlargement operation is performed on the portion in the point-to-point display frame.
In one possible implementation, the display area is rectangular, and the artwork display marquee is rectangular with the same aspect ratio as the display area.
Therefore, the user can conveniently confirm the position to be checked, and the user can conveniently check the point-to-point displayed image to be displayed integrally through the displacement operation of the original image display selecting frame and the partial point-to-point displayed image to be displayed checked by the confirmation operation for multiple times.
In one possible implementation, the display pixel size of the original image display marquee is equal to the pixel size of the rectangular display pixel area.
Therefore, the display area can be utilized to the maximum extent to point the partial to-be-displayed images to be displayed, and the user can also realize the whole view of the partial to-be-displayed images to be displayed in point-to-point display by the original image display selection frame displacement operation and the confirmation operation of the least times to view the partial to-be-displayed images to be displayed in the non-overlapping areas.
In one possible implementation manner, the determining, in response to the displacement operation and the confirmation operation on the original image display checkbox, a part of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display checkbox includes:
responding to the displacement operation of the original image display selecting frame, acquiring the displaced display pixel position of the original image display selecting frame, and displaying the displaced original image display selecting frame in the display area;
and responding to the confirmation operation, and determining a part of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display selection frame.
In one possible implementation manner, the obtaining the shifted display pixel position of the original image display frame in response to the shifting operation on the original image display frame includes:
displaying a plurality of displacement controls pointing to different directions, and responding to the clicking operation of the displacement controls to obtain the displacement amount of display pixels in the corresponding direction so as to obtain the position of the displaced display pixels of the original image display selecting frame; or the like, or, alternatively,
and responding to the clicking operation of the displacement keys in different directions of the input device, and acquiring the displacement amount of the display pixels in the corresponding direction so as to acquire the displaced display pixel position of the original image display selection frame.
Illustratively, the input device, such as a control panel of a monitor, is provided with various control input units such as a shift key or a shift knob, a confirmation key, and a switch key.
In one possible implementation, a single click operation is provided with a displacement step size that presets the length of the display pixel.
In this way, control of the applied displacement operation by the user is facilitated.
In addition, the displacement operation may also be a drag operation applied to the original image display checkbox by the user through a mouse or touch, that is, the obtaining the displaced display pixel position of the original image display checkbox in response to the displacement operation on the original image display checkbox may further include:
and responding to the dragging operation of the original image display selecting frame, and acquiring the display pixel displacement of the original image display selecting frame so as to acquire the displaced display pixel position of the original image display selecting frame.
In the following, the interaction method of displaying the marquee based on the original image will be described as an example of displaying an 8K image on a 4K monitor, from the viewpoint of user operation:
firstly, after obtaining image resolution and display resolution and calculating to obtain an image reduction proportion N, a computer device executing the image display method performs reduction operation of N times on an image to be displayed with the image resolution of X X Y to obtain a thumbnail image with the image resolution of M X N, and displays the thumbnail image with the image resolution of M X N on a display screen with the display resolution of M X N of a monitor in a full screen manner;
then, the computer device enters a point-to-point image display mode, displays a rectangular original image display selection frame (called a rectangular frame for short) above the displayed thumbnail image, the center of the rectangular frame displays a cross mark, the widths of the lines of the rectangular frame and the cross mark are respectively 1 display pixel width, the middle cross position of the cross mark represents the central position of the part to be displayed, as shown in fig. 3, the pixel positions (pixel coordinates) of the display pixels of the four vertices of the upper left, lower left, upper right and lower right of the thumbnail image are respectively (0, 0), (N, 0), (0, M), (N, M), and the pixel positions (pixel coordinates) of the display pixels of the four vertices of the upper left, lower left, upper right and lower right of the original image display selection frame are respectively (N, 0), (0, M), and (N, M)lu，Mlu)、(Nld，Mld)、(Nru，Mru)、(Nrd，Mrd). The width (horizontal pixel length) of the rectangular frame is Nru-Nlu＝Nrd-NldN/N, the height of the rectangular frame being Mru–Mlu＝Mrd–MldM/n. When the original image display selection frame at the initial moment is positioned in the center of the display area, Mlu＝(M-M/n)/2，Nlu＝(N-N/n)/2。
The user can adjust the position of the rectangular frame through an upper key, a lower key, a left key, a right key, an upper knob, a lower knob, a left knob, a right knob and the like of an input device of the monitor, the rectangular frame can horizontally move left and right or vertically move up and down on a screen through the input device, the moving step is optional, the step is L display pixels, L can be set to be 100, 10 or 1 and the like, the rectangular frame and the cross star mark at the center of the rectangular frame synchronously move according to the same step, and the relative positions are kept consistent. And allowing the boundary of the rectangular frame to exceed the boundary of the display picture in the moving process. As shown in fig. 4, when the rectangular box border or the cross star moves out of the border of the display screen, the excess will not be displayed.
The user can confirm the current position of the rectangular frame through a confirmation key of an input device of the monitor, and after the position is confirmed, the computer equipment displays the corresponding partial original image in the rectangular frame area in a full screen mode in a point-to-point display mode.
In a possible implementation manner, the determining a portion of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display marquee includes:
and determining the image pixel positions of the four vertexes of the part of the image to be displayed according to the display pixel positions of the four vertexes of the original image display selecting frame and the ratio of the larger numerical value so as to determine the part of the image to be displayed.
To continue the foregoing example, first, mapping is performed, that is, the rectangular frame position on the thumbnail image is mapped onto the original image (original input image, that is, image to be displayed), and for the rectangular frame position shown in fig. 3, the mapping manner is as shown in fig. 5, that is, the display pixel coordinates of four vertices of the rectangular frame are simultaneously multiplied by N, the obtained four new pixel coordinates are the image pixel coordinates of four vertices of a part of image to be displayed, the circled rectangular area is a part of image to be displayed, and the image resolution of the part of image to be displayed is M × N. If the boundary of the rectangular frame exceeds the boundary of the display picture, for example, the position of the rectangular frame shown in fig. 4, it is only necessary to multiply the display pixel coordinates of the vertex (i.e., the lower left vertex) located in the display region by N to obtain new pixel coordinates, which are the image pixel coordinates of the lower left vertex of a part of the image to be displayed, and the rectangular region defined by the new pixel coordinates and the boundary (the boundary with the image to be displayed) of the display region is a part of the image to be displayed, as shown in fig. 6, the part exceeding the boundary may be filled with black, and the selected part of the image to be displayed jointly form an image with the image resolution of M × N, which is displayed by the monitor. At this point, the process of selecting and displaying the image to be displayed (original image) of the point-to-point display portion is completed.
In addition to the above interaction manner for displaying the marquee based on the original image, in one possible implementation manner, the determining, in response to an original image display trigger operation on the displayed thumbnail image, a portion of the to-be-displayed image corresponding to a display pixel position of the original image display trigger operation includes:
in response to a trigger operation such as a double-click operation on a displayed thumbnail image, a part of an image to be displayed corresponding to a display pixel position and the display resolution of the trigger operation is determined. For example, a portion of the image to be displayed is mapped with the display pixel location that triggers the operation with the image pixel location as the pixel center and the pixel size equal to the display resolution (i.e., the pixel size of the display area).
In a possible implementation manner, after step S140, the image display method provided in this embodiment further includes:
and displaying the thumbnail image in the display area in response to a thumbnail display triggering operation on the displayed part of the image to be displayed.
In this way, the state of displaying the thumbnail images after step S130 can be returned, and the user can select a part of the to-be-displayed images at other positions to be viewed by the user to perform point-to-point display by applying the original image display triggering operation again to the thumbnail images.
For example, the thumbnail display triggering operation is that the user clicks an arbitrary position of a display area of an image to be displayed on a display portion of a touch panel of the monitor, or the user presses a return key provided on a control panel of the monitor, or the like.
In addition, with reference to the foregoing implementation, after the partial to-be-displayed image is displayed point by point in the display area, the user may adjust the area of the partial to-be-displayed image directly through, for example, the up-down left-right button, the up-down left-right knob, and the like of the monitor, as shown in fig. 7, the left side of fig. 7 shows the area of the to-be-displayed image with the image resolution X Y corresponding to the partial to-be-displayed image with the image resolution M X N before adjustment, and the right side of fig. 7 shows the area of the to-be-displayed image with the image resolution X Y corresponding to the partial to-be-displayed image with the image resolution M X N after adjustment.
Another embodiment of the invention provides a computer device comprising a display, a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor when executing the program implementing:
acquiring an image resolution of an image to be displayed and a display resolution of a display area of the display, wherein the image resolution comprises an image transverse resolution and an image longitudinal resolution, the display resolution comprises a display transverse resolution and a display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
For example, the display is a monitor, and the workflow of the computer device provided in this embodiment may refer to the image display method provided in the above embodiment, which is not described herein again.
In a specific example, the architecture of the computer device with a monitor provided by the present embodiment is shown in fig. 8, and includes: the image processing device comprises a signal input module, an image reducing module, an image marking module, an image mapping module, an image displacement module, a selector and an image output module.
Wherein the content of the first and second substances,
the signal input module is used for inputting the image signal to be displayed with super-resolution, and can support the input of the image signal to be displayed with the image resolution exceeding the display resolution, for example, when the display resolution is 4K and the input supports an 8K signal, the signal input module is designed to support the input of a 4-way 12GSDI interface or support the input of a 4-way HDMI2.0 interface. The signal input module supports relevant video input protocols including 12G-SDI, HDMI2.0, DP and the like, has an analysis function of the relevant protocols, can and supports preprocessing of signals, wherein the preprocessing comprises image color space conversion (YCbCr to RGB), frame rate conversion, image enhancement and the like, and the preprocessing does not comprise changing of image resolution of input image signals to be displayed.
An image reducing module, configured to perform image reduction processing on an image to be displayed (original image) with an image resolution of X × Y according to the calculated image reduction ratio N to obtain a thumbnail image with an image resolution of M × N, for example, an input image is 8K, and a display resolution of a monitor is 4K, the image reducing module may reduce the 8K image to 4K image, that is, both the horizontal image resolution and the vertical image resolution are reduced by 2 times.
And the image marking module is used for adding a rectangular frame and a cross star mark on the display interface of the thumbnail image. The image marking module may calculate display pixel coordinates of four corner vertices of the rectangular frame, and draw the rectangular frame and the cross-star mark on the thumbnail image according to the display pixel coordinates. And the display pixel coordinates of the rectangular frame can be calculated in real time according to the input of the input device of the monitor, and a new rectangular frame and the cross-star mark can be drawn according to the new display pixel coordinates in real time. When in the thumbnail display mode, the image marking module is not active and does not mark the thumbnail.
And the image mapping module is used for mapping a part of original image with the image resolution of M X N corresponding to the rectangular frame from the original image according to the display pixel coordinates of the top point of the rectangular frame calculated by the image marking module. When in the thumbnail display mode, the image mapping module does not function.
And the image displacement module is used for adjusting an original image area corresponding to the partial original image with the image resolution of M x N in real time according to the displacement operation received by the input device of the monitor.
And a selector for selecting from the output of the image reduction module or the image displacement module, selecting the output of the image reduction module when the thumbnail mode is used for display, and selecting the output of the image displacement module when the point-to-point display mode is used.
An image output module: the image output module can output the image selected by the selector to the monitor, the image output module can package the image with the image resolution of M × N into an image signal which accords with VBO, LVD or MIPI protocols and output the image signal to the monitor, and the monitor receives the image signal and then displays the image signal.
For example, the modules in the dashed box in the architecture shown in fig. 8 may be implemented in an FPGA chip or a dedicated SoC display processor.
As shown in fig. 9, a computer system suitable for implementing the computer device provided by the above-described embodiments includes a central processing module (CPU) that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) or a program loaded from a storage section into a Random Access Memory (RAM). In the RAM, various programs and data necessary for the operation of the computer system are also stored. The CPU, ROM, and RAM are connected thereto via a bus. An input/output (I/O) interface is also connected to the bus.
An input section including a keyboard, a mouse, and the like; an output section including a speaker and the like such as a Liquid Crystal Display (LCD); a storage section including a hard disk and the like; and a communication section including a network interface card such as a LAN card, a modem, or the like. The communication section performs communication processing via a network such as the internet. The drive is also connected to the I/O interface as needed. A removable medium such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive as necessary, so that a computer program read out therefrom is mounted into the storage section as necessary.
In particular, the processes described in the above flowcharts may be implemented as computer software programs according to the present embodiment. For example, the present embodiments include a computer program product comprising a computer program tangibly embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication section, and/or installed from a removable medium.
The flowchart and schematic diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to the present embodiments. In this regard, each block in the flowchart or schematic diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the schematic and/or flowchart illustration, and combinations of blocks in the schematic and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
On the other hand, the present embodiment also provides a nonvolatile computer storage medium, which may be the nonvolatile computer storage medium included in the apparatus in the foregoing embodiment, or may be a nonvolatile computer storage medium that exists separately and is not assembled into a terminal. The non-volatile computer storage medium stores one or more programs that, when executed by a device, cause the device to: acquiring image resolution of an image to be displayed and display resolution of a display area, wherein the image resolution comprises image transverse resolution and image longitudinal resolution, the display resolution comprises display transverse resolution and display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution; determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution; and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and controlling the thumbnail image to be displayed in the display area.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is further noted that, in the description of the present invention, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations and modifications can be made on the basis of the above description, and all embodiments cannot be exhaustive, and all obvious variations and modifications belonging to the technical scheme of the present invention are within the protection scope of the present invention.
Claims (12)
1. An image display method, comprising:
acquiring image resolution of an image to be displayed and display resolution of a display area, wherein the image resolution comprises image transverse resolution and image longitudinal resolution, the display resolution comprises display transverse resolution and display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
2. The method of claim 1, further comprising: and responding to the original image display triggering operation of the displayed thumbnail image, determining a part of the image to be displayed corresponding to the display pixel position of the original image display triggering operation, and displaying the image in the display area.
3. The method of claim 2, wherein the determining, in response to an original display trigger operation on the displayed thumbnail images, the portion of the image to be displayed corresponding to the display pixel position of the original display trigger operation comprises:
displaying an original image display selection frame while displaying the thumbnail image in the display area;
and responding to the displacement operation and the confirmation operation of the original image display selecting frame, and determining a part of to-be-displayed image corresponding to the display pixel position and the display pixel size of the original image display selecting frame.
4. The method of claim 3, wherein the display pixel size of the artwork display pick-up frame is designed to be included in a rectangular display pixel area of a predetermined display pixel size, wherein a horizontal display pixel length of the rectangular display pixel area is a ratio of the display horizontal resolution to the larger numerical value, and wherein a vertical display pixel length of the predetermined rectangular display pixel area is a ratio of the display vertical resolution to the larger numerical value.
5. The method of claim 4, wherein the display area is rectangular and the artwork display marquee is rectangular with the same aspect ratio as the display area.
6. The method of claim 5, wherein the artwork display marquee has a display pixel size equal to a pixel size of the rectangular display pixel area.
7. The method of claim 5, wherein determining the portion of the image to be displayed corresponding to the display pixel position and the display pixel size of the artwork display marquee comprises:
and determining the image pixel positions of the four vertexes of the part of the image to be displayed according to the display pixel positions of the four vertexes of the original image display selecting frame and the ratio of the larger numerical value so as to determine the part of the image to be displayed.
8. The method of claim 3, wherein the determining the portion of the image to be displayed corresponding to the display pixel position and the display pixel size of the artwork display frame in response to the shifting operation and the confirming operation of the artwork display frame comprises:
responding to the displacement operation of the original image display selecting frame, acquiring the displaced display pixel position of the original image display selecting frame, and displaying the displaced original image display selecting frame in the display area;
and responding to the confirmation operation, and determining a part of the image to be displayed corresponding to the display pixel position and the display pixel size of the original image display selection frame.
9. The method of claim 8, wherein said obtaining the shifted display pixel position of the artwork display checkbox in response to the shift operation on the artwork display checkbox comprises:
displaying a plurality of displacement controls pointing to different directions, and responding to the clicking operation of the displacement controls to obtain the displacement amount of display pixels in the corresponding direction so as to obtain the position of the displaced display pixels of the original image display selecting frame; or the like, or, alternatively,
and responding to the clicking operation of the displacement keys in different directions of the input device, and acquiring the displacement amount of the display pixels in the corresponding direction so as to acquire the displaced display pixel position of the original image display selection frame.
10. The method of claim 9, wherein a single click operation is provided with a displacement step size of a preset display pixel length.
11. A computer device comprising a display, a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements:
acquiring an image resolution of an image to be displayed and a display resolution of a display area of the display, wherein the image resolution comprises an image transverse resolution and an image longitudinal resolution, the display resolution comprises a display transverse resolution and a display longitudinal resolution, and the image transverse resolution is greater than the display transverse resolution and/or the image longitudinal resolution is greater than the display longitudinal resolution;
determining an image reduction ratio according to a ratio of a larger numerical value in a first ratio of the image transverse resolution to the display transverse resolution and a second ratio of the image longitudinal resolution to the display longitudinal resolution;
and carrying out reduction processing on the image to be displayed according to the image reduction ratio to obtain a thumbnail image, and displaying the thumbnail image in the display area.
12. The computer device of claim 11, wherein the display is a monitor.
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