Patent ID: 11881009
Assignee: BROWSERSTACK LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. A non-transitory computer storage that stores executable program instructions that, when executed by one or more computing devices, configure the one or more computing devices to perform operations comprising:
receiving first and second images;
generating a top-clamped image by adding rows to bottom of the shorter of the first and second images;
generating a first difference matrix by comparing pixels in the top-clamped image with pixels in the longer of the first and second images;
generating a bottom-clamped image by adding rows to top of the shorter of the first and second images;
generating a second difference matrix by comparing pixels in the bottom-clamped image with pixels in the longer of the first and second images;
generating a third difference matrix by comparing the first and second difference matrices; and
generating a visual difference image based on the third difference matrix.