Legacy ImageMagick Discussions Archive

Gabrial wrote:1) How to set the "-dissimilarity-threshold" and "-metric" as the command line did?

See Image.cpp. A different version of compare has metric as a parameter.

-dissimilarity-threshold has no relevance in a simple compare, and it has no effect in your command. It is relevant for subimage search. If you want that, see Image.cpp subImageSearch().

Gabrial wrote:2) How to output the comparison value to a *.txt file as the command line did?

Use a version of compare that gives the double "distortion" value. Then use fprintf or whatever you want.