METHODS AND DEVICES FOR ADJUSTING DISPLAY CHARACTERISTIC OF A VIDEO FRAME ACCORDING TO LUMINANCE STATISTICS
First Claim
Patent Images
1. A method for adjusting display characteristic of a video frame according to luminance statistics corresponding to a plurality of pixels in the video frame, the method comprising:
- identifying a first target value and a second target value from the luminance statistics; and
separately adjusting the display characteristic of the pixels corresponding to the first target value and the second target value in the video frame.
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Abstract
A method for adjusting display characteristic of a video frame according to luminance statistics corresponding to pixels in the video frame is disclosed. The method includes identifying a first target value and a second target value from the luminance statistics, and then separately adjusting the display characteristic of the pixels corresponding to the first target value and the second target value in the video frame.
51 Citations
27 Claims
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1. A method for adjusting display characteristic of a video frame according to luminance statistics corresponding to a plurality of pixels in the video frame, the method comprising:
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identifying a first target value and a second target value from the luminance statistics; and separately adjusting the display characteristic of the pixels corresponding to the first target value and the second target value in the video frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17)
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14. The method of claim 14, wherein the step of separately adjusting the luminance values comprises:
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lowering the luminance values of the pixels each having a luminance value lower than the threshold; and raising the luminance values of the pixels each having a luminance value higher than the threshold.
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18. An adjusting device for adjusting display characteristic of a video frame according to luminance statistics corresponding to a plurality of pixels in the video frame, the adjusting device comprising:
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a video buffer, for receiving the video frame; an identifying unit, coupled to the video buffer, for identifying a first target value and a second target value from the luminance statistics; and an adjusting unit, coupled to the video buffer, for separately adjusting the display characteristic of the pixels corresponding to the first target value and the second target value in the video frame. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A system for adjusting display characteristic of a video frame according to luminance statistics corresponding to pixels of the video frame, the system comprising:
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a display, showing the video frame; a dark region controller, operative to adjust the display characteristic of pixels in the video frame corresponding to a first target value; and a bright region controller, operative to adjust the display characteristic of pixels in the video frame corresponding to a second target value; wherein the first target value and the second target value are luminance values from the luminance statistics. - View Dependent Claims (25, 26, 27)
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Specification