Systems and Methods for Enhancing Image Differences
AssigneeKonica Minolta Laboratory U.S.A., Inc.
InventorStuart Guarnieri
Life of this patent
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Abstract
Methods disclosed permit the enhancement of difference images associated with an image pair. In some embodiments, an enhanced difference image may be generated by selecting at least one non-zero target pixel in a thresholded difference image and performing operations on pixels that neighbor the target pixel in the thresholded difference image based on the value associated with the target pixel. In some embodiments, the operations on neighbors of the target pixel may be carried out using a user-specified paintbrush. The enhanced difference image may be rendered using a monitor or a printer.
Claims26
A processor-implemented method for enhancing image differences in an input difference image comprising the steps of:
- selecting at least one target pixel in the difference image, wherein a value associated with the selected target pixel exceeds a threshold value;
- and
- generating an enhanced difference image by updating an existing value associated with at least one neighboring pixel in an area around the target pixel by:
- setting the value associated with the at least one neighboring pixel to the value associated with the selected target pixel, if the operation is opaque, and
- obtaining the value of the at least one neighboring pixel by performing a blending operation using the value associated with the selected target pixel and the existing value associated with the neighboring pixel, if the operation is non-opaque.
A computer-readable medium that stores instructions, which when executed by a processor perform steps in a method for enhancing image differences in an input difference image, the steps comprising:
- selecting at least one target pixel in the difference image, wherein a value associated with the selected target pixel exceeds a threshold value;
- and
- generating an enhanced difference image by updating an existing value associated with at least one neighboring pixel in an area around the target pixel by:
- setting the value associated with the at least one neighboring pixel to the value associated with the selected target pixel, if the operation is opaque, and
- obtaining the value of the at least one neighboring pixel by performing a blending operation using the value associated with the selected target pixel and the existing value associated with the neighboring pixel, if the operation is non-opaque.
A computer readable memory containing instructions for controlling a processor to perform steps in a method for enhancing image differences in an input difference image, the steps comprising:
- selecting at least one target pixel in the difference image, wherein a value associated with the selected target pixel exceeds a threshold value;
- and
- generating an enhanced difference image by updating an existing value associated with at least one neighboring pixel in an area around the target pixel by:
- setting the value associated with the at least one neighboring pixel to the value associated with the selected target pixel, if the operation is opaque, and
- obtaining the value of the at least one neighboring pixel by performing a blending operation using the value associated with the selected target pixel and the existing value associated with the neighboring pixel, if the operation is non-opaque.
Dependencies are inferred from the claim text.