Patent ID: 8782515

Claim:
A method of correlating document images, the method comprising: receiving a source image representing an original document page; receiving a rendered image representing a markup language page rendered by a browser, the markup language page generated by converting one or more elements in the original document page into markup language elements; performing, by a computer, a correlation analysis comprising image comparison between the source image and the rendered image to determine a page fidelity of the converted markup language page; determining, by the computer, a correlation factor based on the correlation analysis, the correlation factor indicating the page fidelity of the converted markup language page compared to the original document page, wherein the correlation factor is a number within a numeric range, the numeric range extending between a first numeric value signifying no correlation and a second numeric value signifying a perfect match; and responsive to the correlation factor exceeding a specified threshold value, determining that the converted markup language page has passed a validation check.