CN106162161A - A kind of image detecting method and display device - Google Patents
A kind of image detecting method and display device Download PDFInfo
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- CN106162161A CN106162161A CN201610528069.0A CN201610528069A CN106162161A CN 106162161 A CN106162161 A CN 106162161A CN 201610528069 A CN201610528069 A CN 201610528069A CN 106162161 A CN106162161 A CN 106162161A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
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Abstract
The invention discloses a kind of image detecting method, display device receives the standard graph card of at least one type by signal source, and obtain self processing result image to standard graph card, in obtaining processing result image after the histogram information of each primary colours, the most qualified according to processing result image described in the ratio-dependent of appointment parameter numerical value in the histogram information of each primary colours.Thus on the premise of not contacting specialty measuring instrument or measuring chromaticity coordinates, it is achieved that the brightness/chroma for display device is measured, and improves the convenience of detection.The present invention also discloses a kind of display device.
Description
Technical field
The present invention relates to Display Technique field, particularly to a kind of image detecting method.The present invention also relates to one
Display device.
Background technology
Color is represented jointly by brightness and colourity.Wherein brightness represents the bright-dark degree of color, and bright color is bright
Degree height, dark colour brightness is low, and colourity is then the character of the not color including brightness, and what it reflected is the tone of color
And saturation.
The visual system of people is complicated to the perception of color, in order to describe color, international lighting quantitatively
The visual system of people, according to experiment, is radiated the sensation red, green, blue three that can be caused by association to different wave length in visible ray
The color matching function of primary colors is noted down and is been described by color using.
In the modern times print, the measurement of colourity is widely used in plate-making, draw a design, print, and beginning more chases after
Ask color accuracy and can be descriptive.Current colour measurement mainly has two kinds: first method is to utilize photoelectric colorimeter
The method of colour examining, second method is the method utilizing spectrophotometer measurement color.Both of which need technical staff by
The measurement equipment (colorimeter or spectrophotometer) of specialty just can complete the measurement of colourity.
During realizing the present invention, inventor finds that prior art at least exists techniques below problem:
Traditional brightness, chromaticity correction method have to first pass through colorimeter or other meter speciallies measurement chromaticity coordinates, so
Based on measurement result, rear technical staff could judge whether display device exists deviation in brightness and/or colourity, and according to sentencing
Display device is corrected by disconnected result.In other words, prior art cannot not possess professional measurement equipment or not lacking
On the premise of acquisition chromaticity coordinate, the colourity to image detects.
Summary of the invention
The invention provides a kind of image detecting method, in order on the premise of not measuring device by chrominance/luminance, right
The brightness/chroma of display device detects, thus on the premise of simplifying testing conditions, improves the convenience of detection.The party
Method includes:
Display device receives the standard graph card of at least one type by signal source, and obtains self to described standard graph card
Processing result image；
Described display device obtains the histogram information of each primary colours in described processing result image；
Described display device, according to the ratio of appointment parameter numerical value in the histogram information of each described primary colours, determines institute
State processing result image the most qualified.
Preferably, according to image described in the ratio-dependent of appointment parameter numerical value in the histogram information of each described primary colours
Result is the most qualified, particularly as follows:
Obtain the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Calculate the difference between maxima and minima in described ratio；
Determine the ratio of described difference and described minima；
Within judging whether described ratio is in default desired range of values, described desired range of values and described standard graph card
Corresponding；
If so, confirm that described processing result image is qualified；
If it is not, confirm that described processing result image is defective.
Preferably, after confirming that described processing result image is defective, also include:
If described processing result image is exported by the movement processing unit of described display device, the machine to described display device
It is deviation adjustment that transmission channel between core processing unit and described display device and described signal source performs brightness/chroma；
If described display device includes the correction module possessing histogram analysis function, and described processing result image is by institute
State correction module output, between movement processing unit and described display device and the described signal source of described display device
Transmission channel perform brightness/chroma deviation adjustment；
If described processing result image is entered at the display image of the display screen to described display device by image capture device
Column hisgram exports after analyzing, to movement processing unit, display screen and the described display device of described display device with described
It is deviation adjustment that transmission channel between signal source performs brightness/chroma.
Preferably, the type of described standard graph card at least includes bright field graph card and details in a play not acted out on stage, but told through dialogues graph card, the type of described primary colours
Including redness, green and blue, described brightness/chroma is deviation adjustment, particularly as follows:
When the type of described standard graph card is bright field graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RDRV/BDRV/GDRV adjustment；
When the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RCUT/BCUT/GCUT adjustment.
Preferably, believe according to the rectangular histogram of the brightness histogram information in described processing result image and each described primary colours
Breath carries out RDRV/BDRV/GDRV adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RDRV/BDRV adjustment；
GDRV adjustment is carried out according to described brightness histogram information.
Preferably, believe according to the rectangular histogram of the brightness histogram information in described processing result image and each described primary colours
Breath carries out RCUT/BCUT/GCUT adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RCUT/BCUT adjustment；
GCUT adjustment is carried out according to described brightness histogram information.
Accordingly, the application also proposed a kind of display device, including:
Movement processing module, is received the standard graph card of at least one type, and obtains self to described mark by signal source
The processing result image of quasi-graph card；
Nogata analyzes module, obtains the histogram information of each primary colours in described processing result image；
Image judge module, according to the ratio of appointment parameter numerical value in the histogram information of each described primary colours, determines
Described processing result image is the most qualified.
Preferably, described image judge module specifically for:
Obtain the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Calculate the difference between maxima and minima in described ratio；
Determine the ratio of described difference and described minima；
Within judging whether described ratio is in default desired range of values, described desired range of values and described standard graph card
Corresponding；
If so, confirm that described processing result image is qualified；
If it is not, confirm that described processing result image is defective.
Preferably, also include:
Chroma luminance adjusting module, when described processing result image is exported by the movement processing unit of described display device
Transmission channel between movement processing unit and described display device and the described signal source of described display device is performed bright
Degree/chromaticity distortion adjusts；Or,
Include the correction module possessing histogram analysis function in described display device, and described processing result image is by institute
State when correction module exports between movement processing unit and described display device and the described signal source of described display device
Transmission channel perform brightness/chroma deviation adjustment；Or,
Enter at the display image of the display screen to described display device by image capture device at described processing result image
Column hisgram analyze after output time to movement processing unit, display screen and the described display device of described display device with described
It is deviation adjustment that transmission channel between signal source performs brightness/chroma.
Preferably, the type of described standard graph card at least includes bright field graph card and details in a play not acted out on stage, but told through dialogues graph card, the type of described primary colours
Including redness, green and blue, described chroma luminance adjusting module specifically for:
When the type of described standard graph card is bright field graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RDRV/BDRV/GDRV adjustment；
When the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RCUT/BCUT/GCUT adjustment.
Preferably, described chroma luminance adjusting module according to the brightness histogram information in described processing result image and
The histogram information of each described primary colours carries out RDRV/BDRV/GDRV adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RDRV/BDRV adjustment；
GDRV adjustment is carried out according to described brightness histogram information.
Preferably, described chroma luminance adjusting module according to the brightness histogram information in described processing result image and
The histogram information of each described primary colours carries out RCUT/BCUT/GCUT adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RCUT/BCUT adjustment；
GCUT adjustment is carried out according to described brightness histogram information.
By applying the above technical scheme of the application, display device receives the standard of at least one type by signal source
Graph card, and obtain self processing result image to standard graph card, the Nogata of each primary colours in obtaining processing result image
After figure information, according to processing result image described in the ratio-dependent of appointment parameter numerical value in the histogram information of each primary colours it is
No qualified.Thus do not contacting specialty measuring instrument or measuring on the premise of chromaticity coordinates, it is achieved that bright for display device
Degree/colour measurement, improves the convenience of detection.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of image detecting method that the application proposes；
Fig. 2 A is the brightness histogram distribution schematic diagram of 30% brightness/gray scale graph card in the application specific embodiment；
Fig. 2 B is the red histogram distribution schematic diagram of 30% brightness/gray scale graph card in the application specific embodiment；
Fig. 2 C is the green histogram distribution schematic diagram of 30% brightness/gray scale graph card in the application specific embodiment；
Fig. 2 D is the blue histogram distribution schematic diagram of 30% brightness/gray scale graph card in the application specific embodiment；
Fig. 3 A is the brightness histogram distribution schematic diagram of 80% brightness/gray scale graph card in the application specific embodiment；
Fig. 3 B is the red histogram distribution schematic diagram of 80% brightness/gray scale graph card in the application specific embodiment；
Fig. 3 C is the green histogram distribution schematic diagram of 80% brightness/gray scale graph card in the application specific embodiment；
Fig. 3 D is the blue histogram distribution schematic diagram of 80% brightness/gray scale graph card in the application specific embodiment；
Fig. 4 is that the application specific embodiment possesses the feelings of image histogram analysis function at display device movement processing unit
The schematic diagram of brightness/chroma detection is carried out under condition；
Fig. 5 is a kind of schematic diagram carrying out brightness/chroma detection that the application specific embodiment proposes；
Fig. 6 is the schematic diagram that the another kind that the application specific embodiment proposes carries out brightness/chroma detection；
Fig. 7 is the schematic diagram that the another kind that the application specific embodiment proposes carries out brightness/chroma detection；
Fig. 8 is the structural representation of a kind of display device that the application proposes.
Detailed description of the invention
As stated in the Background Art, traditional brightness, chromaticity correction method need to first pass through colorimeter (meter specially) and measure
Chromaticity coordinates, then judges display device brightness, chromaticity distortion.Subsequent technology personnel can proceed correction or its elsewhere
Reason.Current chrominance/luminance detection method be not suitable for some without colorimeter installation, debugging occasion.Therefore the application proposes
A kind of image detecting method, it is possible to without measuring, after technical staff by other specialty measurement equipment opponent-color coordinates
Continue and can carry out brightness, chroma control the most further, thus broken away from the dependence to colorimeter.
As it is shown in figure 1, the schematic flow sheet of a kind of image detecting method of the application proposition, it should be noted that this Shen
Display device involved in please be and can carry out the display device that image shows, such as electricity by pigment and each primary colours
Depending on machine (including LCD TV and common TV), display and mobile phone screen etc..
Specifically, the method comprises the following steps:
S101, display device receives the standard graph card of at least one type by signal source, and obtains self to described mark
The processing result image of quasi-graph card.
For a width it has been determined that standard graph card, technical staff can obtain in entire image each in advance by application software
The histogram distribution information of the brightness of pixel and each primary colours (red green blue), therefore comes for a display device to be detected
Say, after its input, the picture material of output are carried out histogram analysis comparison, it is possible to draw display device by Data Comparison
The brightness that caused, chromaticity distortion.
Based on foregoing description, first the application makes display device receive standard graph card, foundation from signal source
Use the difference of scene, by signal source, standard graph card can be sent to display device, it is also possible to performed color by display device
Actively obtaining standard graph card during degree/brightness self-inspection at signal source, these are all within the protection domain of the application.
For different standard graph cards, the brightness of the most each pixel and the histogram distribution letter of different base colors (Hong Lv is blue)
Breath all differs, and therefore for different types of standard, the most in this step, display device can receive certain by signal source
The standard graph card of one type also completes testing process at subsequent step, but signal source can also to display device send multiple not
The standard graph card of same type (such as bright field standard graph card and details in a play not acted out on stage, but told through dialogues standard graph card), thus obtain testing result more accurately.
After getting standard graph card from signal source, display device i.e. processes standard drawing card and rectangular histogram is divided
Analysis.At this it should be noted that according to display device model or the difference of test scene, to the process of standard graph card the most not to the utmost
Identical.
Such as, for there is the display device of movement processing unit, if its movement processing unit has rectangular histogram and divides
Analysis function, then this display device i.e. obtains self processing result image to standard graph card from movement processing unit；If its machine
Core processing unit does not have histogram analysis function, and the application is arranged the most in the display device has histogram analysis function
Module (such as correction module), obtains it by the correction module within this display device and ties the image procossing of standard graph card
Really.
Transmission channel that the way of output of images above result is both between display device and signal source and
Movement processing unit within display device carries out detecting institute relative set, as technical staff simultaneously need to display device
When display screen detects, then need this to be shown by image capture device (the such as digital camera after calibration or photographic head)
The image of showing device is acquired column hisgram analysis of going forward side by side, should although being obtained by third party's collection analysis equipment in the case of Gai
The display device processing result image to standard graph card, but still can realize under not by the chrominance/luminance detection equipment of specialty
The detection of display device.
At this it should be noted that images above result acquisition mode only the application propose the side of being preferable to carry out
Case, it is therefore intended that detect, at this base for each different links (such as transmission link, movement processing links, display link)
On plinth, those skilled in the art can use in display device miscellaneous part or other third party's collecting devices realize at image
The acquisition of reason result, these broadly fall into the protection domain of the application.
S102, described display device obtains the histogram information of each primary colours in described processing result image.
After sticking into column hisgram for standard drawing and processing, processing result image includes that each primary colours are at this standard drawing
Histogram information in card and the brightness histogram information of this standard graph card, wherein the histogram information of each primary colours be in order to
Determine that the important evidence that processing result image is the most qualified, brightness histogram information then can be used for follow-up chrominance/luminance and adjust
Whole.
As shown in Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D, for the brightness of 30% brightness/gray scale graph card in the application specific embodiment
With red green the histogram distribution schematic diagram of indigo plant three primary colours, Fig. 3 A, Fig. 3 B, Fig. 3 C, Fig. 3 D are then the application specific embodiment
In the brightness of 80% brightness/gray scale graph card and the histogram distribution schematic diagram of Hong Lv indigo plant three primary colours.By Fig. 2 A-Fig. 2 D and figure
3A-Fig. 3 D is it can be seen that for the gray scale graph card of a width standard, have the parameter of numerical value in its Hong Lv indigo plant histogram information
The ratio of (such as meansigma methods) should be a fixed value (such as: the relation of 1:1:1, depending on the colour temperature expecting to reach).Therefore this Shen
Please draw, by the contrast of histogram data, brightness, the chromaticity distortion that display device caused, and assist technical staff
Corrected by the means of artificial and automatic adjustment.Thus measure without opponent-color coordinates, it is not necessary to use meter specially (color
Degree meter) also the brightness of display device, colourity can be corrected.
S103, described display device according to specify parameter numerical value in the histogram information of each described primary colours ratio,
Determine that described processing result image is the most qualified.
Owing to the application is intended to display device input, the picture material of output are carried out histogram analysis comparison and by number
According to contrasting brightness, the chromaticity distortion drawing display device and being caused, therefore technical staff can have in histogram information
The parameter of numerical value is specified, and in obtaining processing result image after the histogram information of each primary colours, obtains and specifies ginseng
The ratio of number numerical value in the histogram information of each described primary colours, and determine therefrom that processing result image is the most qualified, and then
To the quality of display device or offer basis for estimation is adjusted for technical staff.
In the preferred embodiment of the application, it is provided with corresponding desired range of values for different types of standard graph card, and
The most qualified based on ratio-dependent between difference between maxima and minima, minima in ratio, idiographic flow is as follows:
Step a) obtains the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Step b) calculates the difference in described ratio between maxima and minima；
Step c) determines the ratio of described difference and described minima；
Within step d) judges whether described ratio is in default desired range of values, described desired range of values and described mark
Quasi-graph card is corresponding, if then going to step e), if otherwise going to step f)；
Step e) confirms that described processing result image is qualified；
Step f) confirms that described processing result image is defective.
As a example by the standard graph card shown in Fig. 2 A-Fig. 2 D and Fig. 3 A-Fig. 3 D, in the specific embodiment of the application, when
It is required for display device when carrying out image detection, sends out 30% respectively first with signal source (signal generator or computer) (dark
) and 80% (bright field) graph card, with rear indicator, two width images being carried out histogram analysis, output R/G/B's is histogrammic
Toaverage ratio, if (maximum-minima)/minima in tri-histogram mean value of R/G/B in expected range a (such as a
More than 99%), then it is assumed that brightness, colourity are qualified.If not in expected range, then it is assumed that brightness, colourity are defective, can be according to hands
Brightness, colourity are corrected by dynamic or automatic flow, until qualified.
Additionally, once after determining processing result image by the analysis of processing result image, if processing result image
Defective, technical staff can parts based on output processing result image or the differences of test situation determine need to carry out bright
The link of degree/chromaticity distortion adjustment or parts, in the preferred embodiment of the application, output based on processing result image
The difference of parts/devices, the adjustment carried out for display device is as follows:
(1) if described processing result image is exported by the movement processing unit of described display device, to described display device
Movement processing unit and described display device and described signal source between transmission channel perform brightness/chroma deviation adjust
Whole.
Specifically, if the image chip in the movement processing unit of display device has histogram analysis function, then
The movement processing unit of this display device can be directed to come from the standard drawing of signal source and stick into column hisgram analysis, and defeated
Going out histogram information, now the histogram information for the output of movement processing unit is analyzed, and technical staff could be aware that also
Correction transmission link and the brightness of two links introducings of movement processing unit, chromaticity distortion, concrete schematic diagram is as shown in Figure 4.
(2) if described display device includes the correction module possessing histogram analysis function, and described processing result image
Exported by described correction module, to the movement processing unit of described display device and described display device and described signal source
Between transmission channel perform brightness/chroma deviation adjustment；
Specifically, when in display device movement processing unit, image chip does not possess image histogram analysis function, for
Can get the result for standard graph card of the movement processing unit in this display device, the application is in display device
Middle the extra correction module with histogram analysis function is set, and obtains from movement processing unit aobvious by this correction module
The showing device processing result image to standard graph card.In concrete application scenarios, correction module can use FPGA or DSP to set
Meter, detection schematic diagram is as shown in Figure 5.
(3) if described processing result image by image capture device at the display image of the display screen to described display device
Export after carrying out histogram analysis, movement processing unit, display screen and described display device and the institute to described display device
State the transmission channel execution brightness/chroma between signal source deviation adjustment.
As shown in Figure 6, when the image output result that technical staff is required for display device entirety detects, pass through
Third-party image capture device (such as calibrated digital camera or photographic head) and computer are set extraly, image acquisition set
The standby image acquisition by display screen display is got off, and is dealt in computer and is carried out rectangular histogram by application software (such as Photoshop) and divide
Analysis, is generated the Nogata analysis result for the image shown by the display screen of display device by analytical equipment.
By above flow process, technical staff can measure equipment not contacting specialty chrominance/luminance or additionally measure color
On the premise of coordinate, the output for display device detects.And from the point of view of for a display device, brightness, chroma control
Be by arrange wherein picture processing chip red green indigo plant gain (RDRV GDRV BDRV) and red green indigo plant bias (RCUT
GCUT BCUT) adjust color output with reach image color information truth reduction purpose.Therefore in the preferred reality of the application
Execute in example, be directed to the bright field graph card included by standard graph card and details in a play not acted out on stage, but told through dialogues graph card two types, Yi Jigen that signal source is launched
According to red, green and blue three kinds of primary colours, the deviation adjustment mode of concrete brightness/chroma is as follows:
(1) when the type of described standard graph card is bright field graph card, according to the brightness Nogata in described processing result image
The histogram information of figure information and each described primary colours carries out RDRV/BDRV/GDRV adjustment；
For bright field graph card, the toaverage ratio in its processing result image may be used for red green indigo plant gain enter
Row sum-equal matrix, therefore first this step carries out RDRV/BDRV according to the ratio of the meansigma methods in the histogram information of each described primary colours
Adjust, carry out GDRV adjustment further according to described brightness histogram information subsequently.
(2) when the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, according to the brightness Nogata in described processing result image
The histogram information of figure information and each described primary colours carries out RCUT/BCUT/GCUT adjustment.
For details in a play not acted out on stage, but told through dialogues graph card, the brightness histogram information in processing result image can be used for guidance carry out red green blue
The adjustment of biasing, first this step carries out RCUT/BCUT according to the ratio of the meansigma methods in the histogram information of each described primary colours
Adjust, carry out GCUT adjustment further according to described brightness histogram information subsequently.
It should be noted that the chrominance/luminance above in relation to display device adjusts and can be made according to data by technical staff
Carry out with relevant equipment, it is also possible to the adjustable strategies preset automatically according to technical staff by display device and histogram information
It is adjusted, on the premise of application carries out chrominance/luminance adjustment with upper type, concrete adjustment mode and the adjustment side of execution
Different all within the protection domain of the application.
In order to technological thought that brightness/chroma adjust is expanded on further, in conjunction with concrete applied field as shown in Figure 7
Scape, illustrates technical scheme.
Technical scheme comprises the following steps in concrete application scenarios:
S701, display device is after receiving the standard graph card that signal source sends, and application the application above example carries
The image detecting method of confession, obtains and carries out the histogram data after Nogata analysis for standard drawing card；
S702, display device is the most qualified according to the bright field chromaticity coordinates of the histogram data criterion graph card obtained, if
Qualified forward S704 to, otherwise turn S703；
S703, display device carry out RDRV BDRV adjust, and re-start image detection after the adjustment, until bright field color
Till coordinate is qualified；
S704, display device is the most qualified according to the bright field brightness of the histogram data criterion graph card obtained, if closing
Lattice forward S706 to, otherwise turn S705；
S705, display device carries out GDRV adjustment, until bright field brightness is qualified；
S706, display device is the most qualified according to the details in a play not acted out on stage, but told through dialogues chromaticity coordinates of the histogram data criterion graph card obtained, if
Qualified forward S708 to, otherwise turn S707；
S707, display device carry out RCUT BCUT adjust, until details in a play not acted out on stage, but told through dialogues chromaticity coordinates is qualified；
S708, display device is the most qualified according to the details in a play not acted out on stage, but told through dialogues brightness of the histogram data criterion graph card obtained, if closing
Lattice forward S710 to, otherwise turn S709；
S709, display device carries out GCUT adjustment, until details in a play not acted out on stage, but told through dialogues brightness is qualified；
S710, display device again according to bright field chromaticity coordinates and the brightness of the histogram data criterion graph card obtained is
No qualified, if qualified, forward S711 to, otherwise forward S702 to；
S711, display device is qualified after confirming brightness, chroma control.
By taking above flow process, display device receives the standard graph card of at least one type by signal source, and obtains
Self processing result image to standard graph card, in obtaining processing result image after the histogram information of each primary colours, root
The most qualified according to processing result image described in the ratio-dependent of appointment parameter numerical value in the histogram information of each primary colours.Thus
On the premise of not contacting specialty measuring instrument or measuring chromaticity coordinates, it is achieved that the brightness/chroma for display device is measured,
Improve the convenience of detection.
In order to reach above technical purpose, the application also proposed a kind of display device, as shown in Figure 8, and including:
Movement processing module 810, is received the standard graph card of at least one type, and obtains self to described by signal source
The processing result image of standard graph card；
Nogata analyzes module 820, obtains the histogram information of each primary colours in described processing result image；
Image judge module 830, according to the ratio of appointment parameter numerical value in the histogram information of each described primary colours, really
Fixed described processing result image is the most qualified.
In concrete application scenarios, described image judge module specifically for:
Obtain the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Calculate the difference between maxima and minima in described ratio；
Determine the ratio of described difference and described minima；
Within judging whether described ratio is in default desired range of values, described desired range of values and described standard graph card
Corresponding；
If so, confirm that described processing result image is qualified；
If it is not, confirm that described processing result image is defective.
In concrete application scenarios, also include:
Chroma luminance adjusting module, when described processing result image is exported by the movement processing unit of described display device
Transmission channel between movement processing unit and described display device and the described signal source of described display device is performed bright
Degree/chromaticity distortion adjusts；Or,
Include the correction module possessing histogram analysis function in described display device, and described processing result image is by institute
State when correction module exports between movement processing unit and described display device and the described signal source of described display device
Transmission channel perform brightness/chroma deviation adjustment；Or,
Enter at the display image of the display screen to described display device by image capture device at described processing result image
Column hisgram analyze after output time to movement processing unit, display screen and the described display device of described display device with described
It is deviation adjustment that transmission channel between signal source performs brightness/chroma.
In concrete application scenarios, the type of described standard graph card at least includes bright field graph card and details in a play not acted out on stage, but told through dialogues graph card, institute
State the type of primary colours and include redness, green and blue, described chroma luminance adjusting module specifically for:
When the type of described standard graph card is bright field graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RDRV/BDRV/GDRV adjustment；
When the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, believe according to the brightness histogram in described processing result image
The histogram information of breath and each described primary colours carries out RCUT/BCUT/GCUT adjustment.
In concrete application scenarios, described chroma luminance adjusting module is straight according to the brightness in described processing result image
The histogram information of side's figure information and each described primary colours carries out RDRV/BDRV/GDRV adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RDRV/BDRV adjustment；
GDRV adjustment is carried out according to described brightness histogram information.
In concrete application scenarios, described chroma luminance adjusting module is straight according to the brightness in described processing result image
The histogram information of side's figure information and each described primary colours carries out RCUT/BCUT/GCUT adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RCUT/BCUT adjustment；
GCUT adjustment is carried out according to described brightness histogram information.
Through the above description of the embodiments, those skilled in the art is it can be understood that can lead to the present invention
Cross hardware to realize, it is also possible to the mode adding necessary general hardware platform by software realizes.Based on such understanding, this
Bright technical scheme can embody with the form of software product, and this software product can be stored in a non-volatile memories
Medium (can be CD-ROM, USB flash disk, portable hard drive etc.) in, including some instructions with so that a computer equipment (can be
Personal computer, server, or the network equipment etc.) each implements the method described in scene to perform the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram being preferable to carry out scene, module in accompanying drawing or
Flow process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can be entered according to implementing scene description
Row is distributed in the device implementing scene, it is also possible to carries out respective change and is disposed other than one or more dresses of this enforcement scene
In putting.The module of above-mentioned enforcement scene can merge into a module, it is also possible to is further split into multiple submodule.
The invention described above sequence number, just to describing, does not represent the quality implementing scene.
The several scenes that are embodied as being only the present invention disclosed above, but, the present invention is not limited to this, Ren Heben
What the technical staff in field can think change all should fall into protection scope of the present invention.
Claims (12)
1. an image detecting method, it is characterised in that including:
Display device receives the standard graph card of at least one type by signal source, and obtains self figure to described standard graph card
As result；
Described display device obtains the histogram information of each primary colours in described processing result image；
Described display device, according to the ratio of appointment parameter numerical value in the histogram information of each described primary colours, determines described figure
As result is the most qualified.
2. the method for claim 1, it is characterised in that according to specifying parameter in the histogram information of each described primary colours
Numerical value ratio-dependent described in processing result image the most qualified, particularly as follows:
Obtain the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Calculate the difference between maxima and minima in described ratio；
Determine the ratio of described difference and described minima；
Within judging whether described ratio is in default desired range of values, described desired range of values and described standard graph card pair
Should；
If so, confirm that described processing result image is qualified；
If it is not, confirm that described processing result image is defective.
3. method as claimed in claim 2, it is characterised in that after confirming that described processing result image is defective, also wrap
Include:
If described processing result image is exported by the movement processing unit of described display device, at the movement to described display device
It is deviation adjustment that transmission channel between reason unit and described display device and described signal source performs brightness/chroma；
If described display device includes the correction module possessing histogram analysis function, and described processing result image is by described school
Positive module output, to the biography between movement processing unit and described display device and the described signal source of described display device
It is deviation adjustment that defeated passage performs brightness/chroma；
If described processing result image is carried out directly at the display image of the display screen to described display device by image capture device
Export after side's map analysis, movement processing unit, display screen and described display device and the described signal to described display device
It is deviation adjustment that transmission channel between source performs brightness/chroma.
4. method as claimed in claim 3, it is characterised in that the type of described standard graph card at least include bright field graph card and
Details in a play not acted out on stage, but told through dialogues graph card, the type of described primary colours includes redness, green and blue, and described brightness/chroma is deviation adjustment, particularly as follows:
When the type of described standard graph card is bright field graph card, according to the brightness histogram information in described processing result image with
And the histogram information of each described primary colours carries out RDRV/BDRV/GDRV adjustment；
When the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, according to the brightness histogram information in described processing result image with
And the histogram information of each described primary colours carries out RCUT/BCUT/GCUT adjustment.
5. method as claimed in claim 4, it is characterised in that according to the brightness histogram information in described processing result image
And the histogram information of each described primary colours carries out RDRV/BDRV/GDRV adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RDRV/BDRV adjustment；
GDRV adjustment is carried out according to described brightness histogram information.
6. method as claimed in claim 4, it is characterised in that according to the brightness histogram information in described processing result image
And the histogram information of each described primary colours carries out RCUT/BCUT/GCUT adjustment, particularly as follows:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RCUT/BCUT adjustment；
GCUT adjustment is carried out according to described brightness histogram information.
7. a display device, it is characterised in that including:
Movement processing module, is received the standard graph card of at least one type, and obtains self to described standard drawing by signal source
The processing result image of card；
Nogata analyzes module, obtains the histogram information of each primary colours in described processing result image；
Image judge module, according to the ratio of appointment parameter numerical value in the histogram information of each described primary colours, determines described
Processing result image is the most qualified.
8. display device as claimed in claim 7, it is characterised in that described image judge module specifically for:
Obtain the ratio of described appointment parameter numerical value in the histogram information of each described primary colours；
Calculate the difference between maxima and minima in described ratio；
Determine the ratio of described difference and described minima；
Within judging whether described ratio is in default desired range of values, described desired range of values and described standard graph card pair
Should；
If so, confirm that described processing result image is qualified；
If it is not, confirm that described processing result image is defective.
9. display device as claimed in claim 8, it is characterised in that also include:
Chroma luminance adjusting module, when described processing result image is exported by the movement processing unit of described display device to institute
State transmission channel between movement processing unit and described display device and the described signal source of display device perform brightness/
Chromaticity distortion adjusts；Or,
Include the correction module possessing histogram analysis function in described display device, and described processing result image is by described school
To the biography between movement processing unit and described display device and the described signal source of described display device during positive module output
It is deviation adjustment that defeated passage performs brightness/chroma；Or,
Carry out directly at the display image of the display screen to described display device by image capture device at described processing result image
To movement processing unit, display screen and the described display device of described display device and described signal during output after side's map analysis
It is deviation adjustment that transmission channel between source performs brightness/chroma.
10. display device as claimed in claim 9, it is characterised in that the type of described standard graph card at least includes bright field figure
Card and details in a play not acted out on stage, but told through dialogues graph card, the type of described primary colours includes redness, green and blue, and described chroma luminance adjusting module is specifically used
In:
When the type of described standard graph card is bright field graph card, according to the brightness histogram information in described processing result image with
And the histogram information of each described primary colours carries out RDRV/BDRV/GDRV adjustment；
When the type of described standard graph card is details in a play not acted out on stage, but told through dialogues graph card, according to the brightness histogram information in described processing result image with
And the histogram information of each described primary colours carries out RCUT/BCUT/GCUT adjustment.
11. display devices as claimed in claim 10, it is characterised in that described chroma luminance adjusting module is according to described image
Brightness histogram information and the histogram information of each described primary colours in result carry out RDRV/BDRV/GDRV adjustment, tool
Body is:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RDRV/BDRV adjustment；
GDRV adjustment is carried out according to described brightness histogram information.
12. display devices as claimed in claim 10, it is characterised in that described chroma luminance adjusting module is according to described image
Brightness histogram information and the histogram information of each described primary colours in result carry out RCUT/BCUT/GCUT adjustment, tool
Body is:
The ratio of the meansigma methods in histogram information according to each described primary colours carries out RCUT/BCUT adjustment；
GCUT adjustment is carried out according to described brightness histogram information.
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