Difference of sum filters for texture classification
First Claim
Patent Images
1. A method for filtering pixel intensities in an image, comprising:
- defining a set of adjacent regions of pixels in an image as a filter, each pixel having an intensity value;
associating an operator with each region in the set;
applying each operator to the intensities in each corresponding region to obtain a total intensity value for the set of regions;
thresholding the total intensity value to obtain a binarized intensity value as a single bit representing a texture of the region.
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Abstract
A method for filtering pixels is described. Filters including adjacent regions of pixels are defined and operators are associated with the regions. The operators are summation and subtraction operators. The filters have even and odd symmetry about a central axis. A total intensity value according to the application of the filter is determined. The total intensity value is binarized.
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15 Claims
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1. A method for filtering pixel intensities in an image, comprising:
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defining a set of adjacent regions of pixels in an image as a filter, each pixel having an intensity value;
associating an operator with each region in the set;
applying each operator to the intensities in each corresponding region to obtain a total intensity value for the set of regions;
thresholding the total intensity value to obtain a binarized intensity value as a single bit representing a texture of the region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification