Does anyone know of any image analysis software (preferably open-source with graphic interface) that allows you to determine shapes and their sizes and classify them by colors? We are looking for alternative methods to do a QTL analysis of the wing color patterns in Heliconius butterflies. We have high resolution scans and pictures.

UPDATE: Check out R package 'patternize'

https://www.researchgate.net/publication/318376320_patternize_An_R_package_for_quantifying_color_pattern_variation

Article patternize: An R package for quantifying color pattern variation

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