| Description: Contains the percentage of the reference image that could overlap, geometrically speaking, with the target image. It does not indicate the actual correlation percentage, but rather what might correlate ideally. This can be used to distinguish, for example, nearly perfect correlation in a small overlapping area vs. very poor correlation over the entire image - both of which could have the same correlation_pixel_count). This percentage is not precisely defined; it is an approximation intended to facilitate culling of results. |