Method and apparatus for representing a group of images
First Claim
Patent Images
1. A method of representing a group of images using at least one processor to process signals corresponding to the images, the method comprising:
- obtaining image dominant colour representations for each image in the group of images, the dominant colour representations expressing the images in terms of one or more of dominant colour values, and where each of the image dominant colour representations has one or more components including at least one image dominant colour value, and a variance indicating colour distribution variance of the image with respect to the dominant colour value, said variance being calculated for each image dominant colour using where j indexes the color component, mj is j-th component of the image dominant color, Pkj is j-th component of the k-th pixel value, and the summation is over N pixels corresponding to the image dominant color under consideration;
determining, using a processor, the values of one or more colours that are dominant for the group of images by combining the image dominant colour representations;
generating a group dominant colour representation for the group of images based on the combined image dominant colour representation.
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Abstract
A technique and system of representing a group of images, the technique includes determining the values of one or more dominant colors for the group of images and deriving a dominant color representation expressing the group of images in terms of one or more of said dominant color values. The inventive technique and system can be applied to any group of images, or image regions, including regions within image.
32 Citations
9 Claims
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1. A method of representing a group of images using at least one processor to process signals corresponding to the images, the method comprising:
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obtaining image dominant colour representations for each image in the group of images, the dominant colour representations expressing the images in terms of one or more of dominant colour values, and where each of the image dominant colour representations has one or more components including at least one image dominant colour value, and a variance indicating colour distribution variance of the image with respect to the dominant colour value, said variance being calculated for each image dominant colour using where j indexes the color component, mj is j-th component of the image dominant color, Pkj is j-th component of the k-th pixel value, and the summation is over N pixels corresponding to the image dominant color under consideration; determining, using a processor, the values of one or more colours that are dominant for the group of images by combining the image dominant colour representations; generating a group dominant colour representation for the group of images based on the combined image dominant colour representation. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for representing a group of images by deriving a group dominant colour representation of the group of images, wherein at least some of the images in the group of images are represented by a respective image dominant colour representation in terms of one or more dominant colour values for the image, and where each of the image dominant colour representation has one or more components including at least one image dominant colour value, and a variance indicating colour distribution variance of the image with respect to the dominant colour value calculated for each image dominant colour using
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∑ k = 0 N - 1 ( m j - p kj ) 2 where j indexes the color component, mj is j-th component of the dominant color, Pkj is j-th component of the k-th pixel value, and the summation is over N pixels corresponding to the dominant color under consideration, the apparatus comprising a processor which derives a group dominant colour representation of the group of images by combining a plurality of said image dominant colour representations. - View Dependent Claims (9)
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Specification