Method and apparatus for modifying an image by using a saliency map based on color frequency
First Claim
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1. Method for modifying an image, said image being defined by a matrix of pixels, comprising:
- calculating a color frequency distribution of said matrix of pixels;
defining for each pixel an energy value as a weighted function of the color frequency of said pixel, so as to define a saliency map of said image;
transforming said image, said transformation being based on said pixel energy values.
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Abstract
A method for modifying an image being defined by a matrix of pixels comprises: •calculating (1) a color frequency distribution of the matrix of pixels; •defining (3) for each pixel an energy value as a weighted function of the color frequency of the pixel, so as to define an image saliency map; •transforming (5) the image, said transformation being based on the pixel energy values. A computer software product to apply the method, an apparatus and a TV set are also disclosed.
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Citations
15 Claims
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1. Method for modifying an image, said image being defined by a matrix of pixels, comprising:
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calculating a color frequency distribution of said matrix of pixels; defining for each pixel an energy value as a weighted function of the color frequency of said pixel, so as to define a saliency map of said image; transforming said image, said transformation being based on said pixel energy values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. Apparatus for modifying an image, said image being defined by a matrix of pixels, comprising:
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a first calculator of a color frequency distribution of said image;
connected toa second calculator of an energy value for each pixel, said energy value being a weighted function of the color frequency of said pixel, so as to define a saliency map of said image;
connected toan image modifier for transforming said image, said transformation being based on said pixel energy value.
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Specification