Method and device for processing image data based on characteristic values of pixel values of pixels
First Claim
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1. A method of processing image data, the method comprising:
- determining first characteristic values, without storing pixel values of pixels, respectively of a plurality of regions of a first image by sequentially calculating, for each of the plurality of regions, characteristic values corresponding to each of the pixel values of the pixels included in each of the plurality of regions while sequentially receiving the pixel values of the pixels;
obtaining, based on the determined first characteristic values, an illumination image related to a second image that is a following image of the first image; and
modifying, based on the obtained illumination image, the second image,wherein the modifying comprises;
determining whether at least a predetermined proportion of the pixel values of the pixels included in each of the plurality of regions of the first image are within a predetermined range; and
determining whether to modify the second image based on a result of the determining whether the at least the predetermined proportion of the pixel values are within the predetermined range.
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Abstract
Provided are a method and a device for processing image data. According to the method, first characteristic values respectively of a plurality of regions of a first image are determined by sequentially calculating, for each of the plurality of regions, characteristic values corresponding to each of pixel values of pixels included in each of the plurality of regions while sequentially receiving the pixel values of the pixels; based on the determined first characteristic values, an illumination image related to a second image that is a following image of the first image is obtained; and, based on the obtained illumination image, the second image is modified.
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Citations
18 Claims
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1. A method of processing image data, the method comprising:
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determining first characteristic values, without storing pixel values of pixels, respectively of a plurality of regions of a first image by sequentially calculating, for each of the plurality of regions, characteristic values corresponding to each of the pixel values of the pixels included in each of the plurality of regions while sequentially receiving the pixel values of the pixels; obtaining, based on the determined first characteristic values, an illumination image related to a second image that is a following image of the first image; and modifying, based on the obtained illumination image, the second image, wherein the modifying comprises; determining whether at least a predetermined proportion of the pixel values of the pixels included in each of the plurality of regions of the first image are within a predetermined range; and determining whether to modify the second image based on a result of the determining whether the at least the predetermined proportion of the pixel values are within the predetermined range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 18)
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10. A device for processing image data, the device comprising:
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a processor configured to sequentially receive pixel values of pixels, determine first characteristic values, without storing the pixel values, respectively of a plurality of regions of a first image by sequentially calculating, for each of the plurality of regions, characteristic values of each of the pixel values of the pixels included in each of the plurality of regions while sequentially receiving the pixel values of the pixels included, obtain, based on the determined first characteristic values, an illumination image related to the first image, modify, based on the obtained illumination image, a second image that is a following image of the first image, determine whether at least a predetermined proportion of the pixel values of the pixels included in each of the plurality of regions of the first image are within a predetermined range, and determine whether to modify the second image based on a result of the determining whether the at least the predetermined proportion of the pixel values are within the predetermined range; and a display configured to display the modified second image. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of processing image data, the method comprising:
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obtaining illumination values, without storing pixel values of pixels included in previous frame image, respectively corresponding to each of a plurality of regions of the previous frame image based on the previous frame image, and storing the obtained illumination values in a register; obtaining an illumination image of the previous frame image based on the obtained illumination values; and updating a current frame image by performing a retinex operation on the obtained illumination image and the current frame image wherein the updating comprises; determining whether at least a predetermined proportion of the illumination values of the pixels included in each of the plurality of regions of the previous frame image are within a predetermined range; and determining whether to update the current frame image based on a result of the determining whether the at least the predetermined proportion of the illumination values are within the predetermined range. - View Dependent Claims (17)
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Specification