System and method for determining a gamma curve of a display device
First Claim
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1. A method of determining a gamma curve of a display device, the method comprising:
- identifying a region of interest of a display surface of the display device;
calculating a centroid of the region of interest;
applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface;
capturing at least one image of each of the displayed images with a camera; and
calculating a gamma curve of the display device based on the captured images and the centroid.
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Abstract
A method of determining a gamma curve of a display device includes identifying a region of interest of a display surface of the display device. A centroid of the region of interest is calculated. A plurality of input levels is applied to the display device to generate a corresponding plurality of displayed images on the display surface. At least one image of each of the displayed images is captured with a camera. A gamma curve of the display device is calculated based on the captured images and the centroid.
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Citations
20 Claims
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1. A method of determining a gamma curve of a display device, the method comprising:
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identifying a region of interest of a display surface of the display device; calculating a centroid of the region of interest; applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface; capturing at least one image of each of the displayed images with a camera; and calculating a gamma curve of the display device based on the captured images and the centroid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for determining a gamma curve of a display device, comprising:
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a first controller configured to apply a plurality of input levels to the display device to generate a corresponding plurality of displayed images on a display surface of the display device; a camera configured to capture at least one image of each of the displayed images; and a second controller configured to identify a region of interest of the display surface, calculate a centroid of the region of interest, and calculate a gamma curve of the display device based on the captured images and the centroid. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. A computer-readable medium having computer-executable instructions for performing a method of determining a gamma curve of a display device, the method comprising:
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calculating a centroid of a region of interest of a display surface; identifying a neighborhood region around the centroid; applying a plurality of input levels to the display device to generate a corresponding plurality of displayed images on the display surface; causing at least one image of each of the displayed images to be captured with a camera; and for each captured image, calculating an average value of pixels positioned within the identified neighborhood region, wherein the calculated average values represent output values of a gamma curve corresponding to the plurality of input levels.
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Specification