Method and apparatus for local image quantification verification

A memory medium comprising program instructions for determining variations of a test image with respect to a reference image, wherein the program instructions are executable to implement:

• a) storing the reference image in a memory, wherein the reference image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• b) storing the test image in a memory, wherein the test image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• c) selecting a test image pixel from the test image;
• d) determining an average of the values of one or more pixels in the reference image, wherein the one or more pixels in the reference image corresponds to a location of a test image pixel in the test image;
• e) deriving an absolute difference between the value of the selected test image pixel and the average value of the corresponding array of pixels in the reference image;
• f) comparing the absolute difference with a maximum difference;
• g) repeating steps c), d), e), and f) for a plurality of test image pixels;
• and
• h) generating a test result indicative of the variations of the test image with respect to the reference image.

A memory medium, comprising:

• a reference image, wherein the reference image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• a test image, wherein the test image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• program instructions for determining variations of the test image with respect to the reference image, wherein the program instructions are executable to implement:
• a). selecting a test image pixel from the test image;
• b). determining an average of the values of one or more pixels in the reference image, wherein the one or more pixels in the reference image corresponds to a location of a test image pixel in the test image;
• c). deriving an absolute difference between the selected test image pixel and the average value of the corresponding array of pixels in the reference image;
• d). comparing the absolute difference with a maximum difference;
• e). repeating steps a), b), c), and d) for a plurality of test image pixels;
• and
• f). generating a test result indicative of the variations of the test image with respect to the reference image.

A system for determining variations of a test image with respect to a reference image, the system comprising:

• a memory medium that stores:
• the reference image, wherein the reference image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• the test image, wherein the test image comprises a plurality of pixels, wherein each of the pixels comprises at least one value;
• and
• a software program executable to determine variations of the test image with respect to the reference image;
• a processor coupled to the memory medium, wherein the processor is operable to execute the software program to implement:
• a). selecting a test image pixel from the test image;
• b). determining an average of the values of one or more pixels in the reference image, wherein the one or more pixels in the reference image corresponds to a location of a test image pixel in the test image;
• c). determining an absolute difference between the value of the selected test image pixel and the average value of the corresponding array of pixels in the reference image;
• d). comparing the absolute difference with a maximum difference;
• e). repeating steps a), b), c), and d) for a plurality of test image pixels;
• and
• f). generating a test result indicative of the variations of the test image with respect to the reference image.

A method of determining variations of a test image with respect to a reference image, wherein the reference image comprises a plurality of pixels, wherein each of the pixels comprises at least one value, wherein the test image comprises a plurality of pixels, wherein each of the pixels comprises at least one value, the method comprising:

• a) determining an average of the values of the pixels included in an array of pixels in the reference image, wherein the array of pixels in the reference image corresponds to a location of a test image pixel in the test image;
• b) determining a difference between a value of the test image pixel and the average value of the corresponding array of pixels in the reference image;
• c) comparing the absolute difference with a maximum difference;
• d) repeating steps a), b), and c) for a plurality of test image pixels;
• and
• e) generating a test result indicative of the variations of the test image with respect to the reference image.