WO2006074584A1 - Procede d'amelioration de l'affichage d'un afficheur - Google Patents

Procede d'amelioration de l'affichage d'un afficheur Download PDF

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Publication number
WO2006074584A1
WO2006074584A1 PCT/CN2005/000972 CN2005000972W WO2006074584A1 WO 2006074584 A1 WO2006074584 A1 WO 2006074584A1 CN 2005000972 W CN2005000972 W CN 2005000972W WO 2006074584 A1 WO2006074584 A1 WO 2006074584A1
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Prior art keywords
brightness
difference
display device
color
luminance
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PCT/CN2005/000972
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English (en)
Chinese (zh)
Inventor
Hongan Li
Haiyan Zhang
Haiying Li
Sikuan Shen
Minghai Guo
Zhiming Liu
Tiejun Lu
Run Jiang
Qifeng Dai
Zhian Li
Guocheng Kang
Original Assignee
Shenzhen Chuangwei-Rgb Electronics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CNB2005100202381A external-priority patent/CN100362849C/zh
Priority claimed from CNB2005100202409A external-priority patent/CN100351895C/zh
Priority claimed from CN 200510020237 external-priority patent/CN1694542A/zh
Priority claimed from CNB2005100202396A external-priority patent/CN100362850C/zh
Application filed by Shenzhen Chuangwei-Rgb Electronics Co., Ltd. filed Critical Shenzhen Chuangwei-Rgb Electronics Co., Ltd.
Publication of WO2006074584A1 publication Critical patent/WO2006074584A1/fr

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/64Circuits for processing colour signals
    • H04N9/646Circuits for processing colour signals for image enhancement, e.g. vertical detail restoration, cross-colour elimination, contour correction, chrominance trapping filters

Definitions

  • the present invention relates to color image processing techniques, and more particularly to a method of improving the display effect of a display device.
  • color display devices display different proportions of red, green, and blue by the additive primary color red, green, and blue display units, and then achieve spatial color mixing by means of the characteristics of the human eye to achieve color image display. That is, the input signals of the display device are red, green, and blue primary color signals.
  • the industry has made continuous progress in improving the "three primary colors" imaging and processing technology.
  • color TV manufacturing enterprises due to fierce market competition, often the same model needs to match different display screens, but the characteristics of different display screens are different, such as the color reproduction range. Therefore, if the white balance of the factory products is to be consistent, it is necessary to carry out Tuning, sacrificing the color reproduction range of some displays to achieve white balance consistency.
  • Image edge enhancement technology has been developed for a long time.
  • Analog circuits generally use 2 differential processing, while digital circuits generally use digital filtering.
  • many TV sets have the functions of "clear”, “standard”, “soft”, etc. in the user-oriented setting interface, and some even set the resolution to hundreds of adjustable. Level, these are actually the choices for edge enhancement
  • the display device performs a unified edge enhancement process on all the input signals according to the set parameters, even if the image is relatively sharp, but often brings obvious hooks. Sound, the effect of glare is rough and it is difficult to achieve the desired clear state. '
  • the technical problem to be solved by the present invention is to provide a method for improving the display effect of the display device in view of the above-mentioned deficiencies of the prior art.
  • the invention can: adjust and compensate the deviation of the color reproduction of the display device intuitively and effectively; and/or can dynamically adjust the depth of field according to the characteristics of the displayed image; and/or can improve the image clarity and completely eliminate Hook noise; and/or can adjust for a specific color range.
  • a method for improving the display effect of a display device comprising the steps of: adjusting a display color of a display device: dividing each pixel of the input image signal into a corresponding brightness level; and displaying the six primary colors of the display device at different brightness levels Adjusting separately, the six primary colors are composed of three primary colors of red, green and blue and three new primary colors, and the three new primary colors are generated by pairing the three primary colors according to a fixed color matching ratio, when the pair is new When one of the primary colors is adjusted, it is equivalent to simultaneously adjusting the two primary colors corresponding thereto according to the fixed ratio.
  • the three new primary colors are: yellow and green in a ratio of 50% each; yellow and blue are combined according to the ratio of 50% each; cyan and red are in accordance with each A 50% ratio produces a magenta color.
  • the brightness level can be divided according to the brightness change capability of the display device; generally it can be divided into 64 levels.
  • another method for improving the display effect of the display device comprising the step of: boosting the dynamic depth of field of the input image: firstly, the brightness information of each pixel in the determined range of the input picture is counted, and the brightness information is included in each brightness signal.
  • the number of pixels of the value and the average value of the brightness if the ratio of the number of pixels in the high luminance signal value to the total number of sampling pixels is greater than the set white level expansion processing start threshold, white level expansion processing is performed such that the ratio Decrease; if the brightness average value is greater than the set black level expansion processing start threshold, perform black level expansion processing such that the brightness average value decreases; if the number of pixels in the low luminance signal value is the total number of pixels sampled If the ratio is greater than the set brightness curve correction processing start threshold 1 or the brightness average value is less than the set brightness curve correction processing start threshold 2, the brightness curve correction processing is performed according to the set correction intensity, so that the ratio is decreased or the brightness average value improve.
  • the luminance signal value can be divided according to the luminance performance capability of the display device.
  • the luminance performance capability of the display device Preferably,
  • the high luminance signal value refers to a luminance signal value higher than a set white level extension starting point.
  • the low luminance signal value refers to a luminance signal value lower than the luminance threshold correction processing start threshold two.
  • the luminance signal value is divided into 256 levels, and the white level extension starting point is 128 to 255.
  • the brightness signal value is divided into 256 levels, and the brightness curve correction processing start threshold 2 is 0 ⁇ 127.
  • another method for improving the display effect of the display device comprising the step of image edge enhancement: first, detecting a luminance difference of adjacent pixels in the input image signal, wherein the luminance difference refers to a luminance signal value of the adjacent pixel The difference is determined according to the set upper and lower limits of each brightness difference area, wherein the area containing the high brightness difference and the low brightness difference corresponds to weak edge strength or no hooking, brightness The area in which the difference is in the middle corresponds to the strong hook strength; and the hook edge processing is performed according to the above-mentioned hook strength value.
  • the brightness difference area is divided into five parts, the lower limit of 0 to the second brightness difference is a low brightness difference area, the lower limit of the second brightness difference to the lower limit of the brightness difference is a low brightness difference transition area, and the lower limit of the brightness difference to the upper limit of the brightness difference
  • the upper limit of the brightness difference to the upper limit of the second brightness difference is the high-brightness difference transition area
  • the upper limit of the brightness difference to the highest brightness signal value is the high-brightness difference area
  • the high- and low-light difference areas correspond to the weak-hook edge strength or Without the hooking process
  • the medium-light difference area corresponds to the strong edge strength
  • the high- and low-lightness transition area corresponds to the linear interpolation value of the edge strength used in the adjacent brightness difference area.
  • the value of the lower limit of the brightness difference is 0% to 50% of the value of the highest brightness signal
  • the value of the upper limit of the brightness difference is 50% to 100% of the value of the highest brightness signal
  • the value of the upper limit of the brightness difference is greater than the lower limit of the brightness difference. Value.
  • the brightness signal value is divided into 256 levels, the value of the lower limit of the brightness difference can be selected from 0 to 127, and the value of the upper limit of the brightness difference can be selected from 128 to 255.
  • the brightness signal value is divided into 256 levels, the lower brightness difference lower limit is 8 levels lower than the brightness difference lower limit, and the brightness difference upper limit is 64 levels lower than the lower brightness difference upper limit.
  • another method for improving display performance of the display device comprising the steps of image-preferred color space conversion: first, selecting a color range to be processed, the color range to be processed includes a brightness range, a tonal range, and a saturation range; Determining a target color range corresponding to the color range to be processed; detecting color information of each pixel in the input image signal, and when it belongs to the determined color range to be processed, converting it to a corresponding target color range, and then outputting The processed image signal.
  • the target color range has the same brightness as the color range to be processed.
  • the steps of adjusting the display color of the display device, the step of enhancing the dynamic depth of field of the input image, the step of enhancing the edge of the image, and the step of converting the image color space can all improve the display effect of the display device in the present invention.
  • the method can be used alone or in combination or in combination.
  • the present invention adopts the above technical solution, and the beneficial effects are as follows:
  • the adjustable base color covers a wide range of colors, and has a sharp contrast and difference with the existing primary colors, making it easier to select the primary color to be adjusted.
  • the segmentation method is used to determine the degree of edge enhancement based on the brightness difference of adjacent pixels, avoiding the existing "one size fits all" approach, and weakening the hook for areas containing high luminance difference and low luminance difference. Side processing, completely eliminates the hooking noise, and enhances the edge processing of the area containing the medium brightness difference, and can obtain clear and sharp image effects; 3-2) Experiments prove that the bright area is simplified to five, It basically meets the needs of practical applications, achieves better segmentation processing effect, and has the advantage of realizing simple calculation fast; 3-3) The division of luminance signal values in each preferred mode is based on the brightness of most existing display devices. Depending on the performance, the upper and lower limits of the difference, the upper and lower limits of the difference are set by the applicant after repeated experiments, taking into account the elimination of noise and obtaining clear and sharp image effects. In the case of the case.
  • Figure 1 shows the Munsell color system.
  • Figure 2 is a diagram of the Newton color circle and its prediction.
  • Figures 3(a)–(c) are diagrams showing the effect of a set of test pictures on a conventionally tuned display device.
  • FIGS. 4(a) to (c) are diagrams showing the effect of the test picture of Fig. 1 on a display device after six-color tone correction.
  • Figure 5 is an image signal 1 before processing.
  • Figure 6 is a histogram of the luminance information of Figure 5.
  • Figure 7 is a graph of brightness correction.
  • Figure 8 is an image signal 2 before processing.
  • Figure 9 is a histogram of the luminance information of Figure 6.
  • Figure 10 is a schematic diagram of black/white level expansion processing.
  • Figure 11 is a diagram showing the effect of the image signals 5 and 6 after processing.
  • Figure 12 is a histogram of the luminance information of Figure 11.
  • Figures 13(a) and (b) are screenshots of a continuous signal before and after dynamic processing.
  • Figures 14(a) and (b) are screenshots before and after dynamic processing of another continuous signal.
  • Figures 15(a) and (b) are screenshots before and after dynamic processing of yet another continuous signal.
  • Figure 16 is a schematic diagram of the difference zone segmentation and the edge strength.
  • Figure 17 is an image without edge enhancement processing.
  • Figure 18 is an image processed by ordinary edge enhancement.
  • Figure 19 is an image of the segment edge enhancement process of the present invention.
  • FIG. 20 is a schematic diagram of conversion of a color range to be processed and a target color range.
  • Figure 21 (a), (b) are the comparison chart before and after the test picture 1 is converted by the preferred color space.
  • Figures 22(a) and (b) show the comparison of the test picture 2 before and after the preferred color space conversion.
  • the present invention provides a method of improving the display effect of a display device, the method being selected from the steps of: adjusting a display color of a display device, a step of enhancing a dynamic depth of field of an input image, an image edge enhancement step, and an image preference color
  • adjusting a display color of a display device a step of enhancing a dynamic depth of field of an input image
  • an image edge enhancement step a step of enhancing a dynamic depth of field of an input image
  • an image edge enhancement step an image preference color
  • Each pixel contains three signals: hue, saturation, and brightness. This is the source of the 3D concept and can be expressed as Munsell color.
  • a point in the system (Munsell Color System, as shown in Figure 1).
  • the vertical axis represents the brightness, which can be divided into multiple levels from dark to bright, and the cross section of each brightness level is Newton color ring, as shown in Fig. 2.
  • the saturation increases in turn, and along the circumference of the ring, the hue changes between the three primary colors of red, green, and blue.
  • the relationship between various colors and primary colors follows the following predictions: 1.
  • the color represented by the connected lines of the two primary colors is considered to be a mixed color of two primary colors, for example: the same amount of green and red produces yellow a, which is yellow The saturation is lower than the saturation of its endpoint, because this point is closer to the center point; 2. The same amount of red and its complementary color cyan can be mixed to obtain white or monochrome ash, while a little more red produces low saturation. Red or magenta; 3.
  • the color c produced by mixing the blue and spectral colors b in an appropriate ratio can be considered to be equivalent to the spectral color d of the same hue and the saturation is slightly lower.
  • a standard picture comparison method can be used, and a sufficient number of standard pictures with sufficient color detail and brightness level are selected as the basis for adjustment, and the displayed image is compared with the standard picture. Find out the undesired color on each brightness plane, judge which color is closest to it, and then enhance or weaken the corresponding base color to repeat the above judgment and correction process. In the actual operation, you can use the normal R/G/B gamma curve correction and white balance adjustment before using the six primary colors for further color correction. Since the above adjustment process is a fine adjustment of the color deviation, the operation of each of the six primary colors can be approximated as independent.
  • the enhancement or attenuation of the yellow primary color does not affect the other five basic tones of the display.
  • the adjustment of the primary color is halved, it is pure red or near red and
  • the effects of simple green and near-green color are almost imperceptible, but only have a relatively obvious effect on simple yellow or near-yellow color. Therefore, the adjustment by this method has an intuitive and accurate effect.
  • the color produced by the equal matching of the three primary colors is selected as the new primary color because they are complementary colors of the three primary colors respectively (yellow is a complementary color of blue, cyan is a complementary color of red, and magenta is green).
  • Complementary color Can be visually made to enrich the monotonous primary color, so that the adjustable base color covers a wide range of colors, and has a sharp contrast and difference with the existing primary colors, making it easier to select the primary color to be adjusted. It is also possible to adjust the formation ratio of the new primary color, as long as it can conform to people's visual habits, and it can be used to enrich the adjustable primary color. You can even add new ones. The number of base colors, but since the new base color is always a fixed ratio of the two primary colors, too many primary colors will cause adjustment and cumbersome adjustment, so the number of six primary colors is more appropriate.
  • Embodiment 2 The method for improving the display effect of the display device comprises the steps of: enhancing the dynamic depth of field of the input image: firstly, the brightness information of each pixel in the determined range of the input picture is counted, and the brightness information includes the value of each brightness signal.
  • the number of pixels and the average value of the brightness if the ratio of the number of pixels in the high luminance signal value to the total number of sampling pixels is greater than the set white level expansion processing start threshold, white level expansion processing is performed, so that the ratio is lowered If the luminance average value is greater than the set black level expansion processing start threshold, the black level expansion processing is performed such that the luminance average value is decreased; if the ratio of the number of pixels in the low luminance signal value to the total number of sampling pixels If the brightness threshold correction processing start threshold 1 or the brightness average value is smaller than the set brightness curve correction processing start threshold 2, the brightness curve correction processing is performed according to the set correction intensity, so that the ratio is lowered or the brightness average value is raised. Hey.
  • the black/white level expansion processing can be performed by setting the black/white level extension maximum slope, the minimum slope, the upper and lower limits of the black level extension starting point, and the upper and lower limits of the white level extension starting point.
  • the luminance curve correction processing can be performed by setting the luminance correction intensity and the end point of the luminance correction curve.
  • the display device used is the S42SD-YD05 plasma module produced by Samsung SDI Co., Ltd., and its brightness is divided into 0 to 255 from 256 to 255, and 128 to 255 is the high brightness signal value, 0 ⁇ 127 is the low-brightness signal value, the brightness threshold correction processing start threshold 2 and the black level expansion processing start threshold are both 80, the white level expansion processing start threshold is 30%, and the brightness curve correction processing start threshold is 30%, sampling The range is 732X 400 pixels in the center of the input image.
  • brightness curve correction intensity is 80
  • white level extension start point range is 215 ⁇ 255
  • black level extension start point range is 32 ⁇ 64
  • white level extension maximum slope is 1.125
  • black level expansion The minimum slope is 0.79687.
  • input image signal 1 as shown in Figure 5
  • its brightness information is shown in Figure 6 in the form of a histogram
  • the horizontal axis of Figure 6 shows the brightness signal values from 0 to 255 from dark to bright
  • vertical axis Indicates the number of pixels at which the input image is at each luminance signal value. It can be seen from Fig. 6 that too much image content is accumulated on the dark end of the left side, and the ratio of the number of pixels at the low luminance signal value to the total number of sampled pixels is about 45%, which is higher than the luminance threshold correction processing start threshold. First, the average brightness is about 60, which is lower than the brightness threshold correction processing start threshold 2. It can also be seen intuitively from Figure 5 that the image is dim and the details are difficult to distinguish.
  • the image is subjected to luminance curve correction processing.
  • the horizontal axis of FIG. 7 represents the input luminance signal value YI
  • the vertical axis represents the output luminance signal value ⁇ , which can be set by setting the luminance correction intensity and the luminance correction curve.
  • the end point is adjusted, which is a commonly used brightness correction method in the field of image processing.
  • the dotted line in Fig. 7 is the brightness curve before adjustment, and the solid line is the adjusted brightness correction curve.
  • the image signal 2 is input, as shown in Fig. 8, and its luminance information is shown in Fig. 9 in the form of a histogram.
  • Fig. 9 too much image content is piled up at the extremely bright end on the right side, and the ratio of the number of pixels at the high luminance signal value to the total number of sampled pixels is about 40%, which is higher than the white level expansion processing.
  • the threshold is activated.
  • the average brightness exceeds 150, which is higher than the black level expansion processing start threshold. It can also be seen visually that the image is too bright and the details of the bright area are difficult to distinguish. Therefore, the image is subjected to black/white level expansion processing.
  • the horizontal axis of Fig. 10 the horizontal axis of Fig.
  • the vertical axis represents the output luminance signal value ⁇ , which can be set by setting the maximum slope and the minimum slope.
  • the upper and lower limits of the black level extension start point and the upper and lower limits of the white level extension start point are adjusted, which is a black/white level extension method commonly used in the field of image processing.
  • the dotted line is the brightness curve before adjustment
  • the solid line is the adjusted black/white level expansion curve.
  • Fig. 12 is a luminance information histogram of Fig. 11. As can be seen from Fig. 12, the image content covers almost the entire dynamic range. It can also be visually seen from Fig. 11 that the depth of field of the image is better and the details are clearer.
  • FIG. 13 to Figure 15 are screenshots of dynamic processing of continuous signals.
  • Part (a) of each figure is an unprocessed picture
  • part (b) is a picture with dynamic depth of field enhancement. Comparing the parts of the figure can be seen After the dynamic depth of field is improved, the picture is bright and dark, the image is more vivid, the stereoscopic effect is stronger, the picture is more layered, and the weaker light is also obviously improved.
  • the method for improving the display effect of the display device comprises the steps of image edge enhancement: first, detecting a luminance difference of adjacent pixels in the input image signal, wherein the luminance difference refers to a luminance signal value of the adjacent pixel a difference value, the brightness signal value may be divided according to a brightness change capability of the display device; determining an area where the brightness difference is located according to the set upper and lower limits of each brightness difference area, where the high brightness difference and the low brightness difference are included The area corresponds to the weak hook strength, and the area where the brightness difference is in the middle corresponds to the strong hook strength; and the hook edge processing is performed according to the above-mentioned hook strength value.
  • the brightness signal value is divided into 0 to 255 levels from dark to light, and the brightness difference area is divided into five, and the 0 to the second brightness difference is the low brightness difference area, and the second brightness difference is the lower limit.
  • the lower limit of the brightness difference is the low-light difference transition area
  • the lower limit of the brightness difference to the upper limit of the bright difference is the medium-light difference area
  • the upper limit of the difference of brightness to the upper limit of the second difference is the transition area of the high-brightness difference
  • the upper limit of the second difference is the highest brightness signal.
  • the value is a high-brightness difference region; wherein, the high and low luminance regions correspond to the weak edge strength B, the medium-light region corresponds to the strong edge strength A, and the high and low luminance transition regions correspond to the adjacent luminance regions. Linear interpolation of the edge strength.
  • the difference between the segmentation of the bright region and the strength of the hook is shown in Fig. 16.
  • the vertical axis is the bright difference and the horizontal axis is the hook strength.
  • the specific hook width value can also be set according to the size of the display screen, the number of effective pixels, etc., and can generally be selected between 1 and 2 pixels.
  • the S42SD-YD05 plasma module produced by Samsung SDI Company is used as the display device, and its brightness is divided into 0 to 255 by 256 levels from dark to bright. 0 ⁇ 51 is the low-brightness area, and 52 ⁇ 60 is low. In the bright transition zone, 61 ⁇ 134 is the medium bright zone, 135 ⁇ 199 is the high-brightness transition zone, and 200 ⁇ 255 is the high-brightness zone.
  • the upper limit of the brightness difference is 135, the lower limit of the brightness difference is 60, and the strength of the hook edge is a strong hook edge (the greater the strength of the hook edge, the higher the upper and lower overshoots, the more distinct the edge), and the edge strength B is 0, that is, no hooking processing, the sampling range is all pixels of the input image.
  • the test image (shown in Fig. 17) is subjected to ordinary edge enhancement processing to obtain Fig. 18; and the segment edge enhancement processing is performed by the method of the present invention to obtain Fig. 19. Comparing Figs. 17, 18, and 19, it can be seen that the image obtained by the ordinary edge enhancement process exhibits a large hooking noise, and the visual effect is rough; and the image partial expression after the segment edge enhancement processing by the method of the present invention is obtained. Clear and sharp, with no glare.
  • the delay of the image display is not caused, the difference region is divided into five, and an algorithm corresponding to the single or linear interpolation edge intensity of each of the luminance regions is actually used.
  • an algorithm corresponding to the single or linear interpolation edge intensity of each of the luminance regions is actually used.
  • more bright areas can be divided, and the brightness difference area and the hook strength can also use various more detailed function correspondences.
  • Embodiment 4 A method for improving display performance of a display device, comprising the steps of image-preferred color space conversion: First, selecting a color range to be processed, the color range to be processed includes a brightness range, a tonal range, and a saturation range; a target color range corresponding to the color range to be processed; the target color range has the same brightness as the color range to be processed, and is obtained by adjusting the color range to be processed by hue and saturation.
  • the color information of each pixel in the input image signal is detected, and when it belongs to the determined color range to be processed, it is converted into a corresponding target color range, as shown in Fig. 20, and the processed image signal is output. If it does not belong to the determined color range to be processed, no processing is performed.
  • the setting range of brightness, saturation and hue of the color range to be processed is 0 ⁇ 31.75 (The meaning of this setting range is to calibrate a color range to be processed centered on the selected color. If it is 0, It means that the brightness, saturation, and tone value of the selected color are strictly the color range to be processed. If it is 5, it means that the selected color is centered +/-5 for the color range to be processed, brightness, saturation, and hue.
  • the units are %, %, and degree respectively. Without changing the brightness, the color range to be processed is adjusted by hue and saturation to obtain the target color range.
  • the saturation change range is 0 ⁇ 200% of the original value, and the hue change range is + /-16.
  • test picture 1 For test picture 1 (as shown in Figure 21 (a)), set the color range to be processed: the brightness range is set to 4.25. The saturation range is set to 0, and the tonal range is set to 12.25. The target color range is adjusted by hue and saturation: the saturation range is set to 1.1, and the hue range is changed to -2.75.
  • the test picture 1 is converted into a preferred color space to obtain Fig. 21(b). Comparing Fig. 21(a) and (b), it can be seen that the converted person's skin color is more rosy, while the other parts of the image are not changed.
  • each processing step is not necessarily only performed once, and multiple steps may be alternately processed as needed. For example, after the display color of the display device is adjusted, the dynamic depth of field is enhanced, and then the edge enhancement is performed, and then the dynamic depth of field is enhanced. Finally, the image display output is converted after the preferred color space conversion.

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Abstract

L'invention concerne un procédé d'amélioration de l'affichage d'un afficheur par sélection d'une étape ou d'une combinaison de plusieurs étapes comme indiqué ci-après . réglage de l'affichage couleur de l'afficheur ; amélioration de la profondeur dynamique du champ de l'image d'entrée ; amélioration de la bordure de l'image et conversion de l'espace couleur selon la préférence couleur de l'utilisateur. L'efficacité tient au fait que l'afficheur est corrigé par le biais de six primaires, permettant de mieux correspondre à l'habitude visuelle humaine et de réaliser le réglage non linéaire abstrait plus directement et précisément : étant donné que le mode de traitement spécifique est déterminé de façon dynamique selon les caractéristiques de chaque image d'entrée, l'image est toujours maintenue sur une bonne performance de profondeur de champ ; étant donné que le degré d'amélioration de la bordure est déterminé selon la différence de luminosité entre pixels adjacents par le biais de la technique de classification, le bruit d'amélioration de la bordure peut être éliminé entièrement, donnant ainsi une image précise et nette ; étant donné que l'on utilise la conversion de gamme de couleurs originale en gamme de couleurs d'objet, il est possible de régler la couleur spécifique sans influer sur l'information de tonalité et de saturation d'autres parties de l'image et de régler cette image de façon plus flexible et précise.
PCT/CN2005/000972 2005-01-17 2005-07-04 Procede d'amelioration de l'affichage d'un afficheur WO2006074584A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CNB2005100202381A CN100362849C (zh) 2005-01-17 2005-01-17 电视图像动态景深提升方法
CN200510020240.9 2005-01-17
CN200510020237.7 2005-01-17
CNB2005100202409A CN100351895C (zh) 2005-01-17 2005-01-17 显示器件的显示色彩的调整方法
CN 200510020237 CN1694542A (zh) 2005-01-17 2005-01-17 电视图象偏好色彩空间转换方法
CNB2005100202396A CN100362850C (zh) 2005-01-17 2005-01-17 电视图像边缘增强方法
CN200510020238.1 2005-01-17
CN200510020239.6 2005-01-17

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Cited By (2)

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CN110969981A (zh) * 2019-12-30 2020-04-07 维沃移动通信有限公司 屏幕显示参数调节方法及电子设备
CN113781627A (zh) * 2021-09-14 2021-12-10 佛山奇正电气有限公司 一种低强度和高强度流动结构融合显示方法

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