ofxAddons
color difference based greenscreening for openframeworks
Forks
Forks pushed to more recently than underdoeg/ofxGreenscreen itself, plus any admin-confirmed fork with commits of its own — worth checking if you're hitting issues with the original.
README
Color difference keying for openframeworks
Based on the method described here http://www.blendedplanet.com/?Planet_Blog:Greenscreen_Keying
This addon uses opencv to calculate the color difference of a specific green tone. This has a major advantage over ofxChromaKey (https://github.com/underdoeg/ofxChromaKey) as this method is able to extract shadow information and produces a smoother result. The drawback is however it will only work with a well lit greenscreen and is way less error resistant than chroma keying.
The result looks something like this (taken with a really crappy green background) https://github.com/underdoeg/ofxGreenscreen/blob/9b153daf18aea40de72e06569703ffdd158fe7a1/example/bin/data/save/composition2.png
Based on the method described here http://www.blendedplanet.com/?Planet_Blog:Greenscreen_Keying
This addon uses opencv to calculate the color difference of a specific green tone. This has a major advantage over ofxChromaKey (https://github.com/underdoeg/ofxChromaKey) as this method is able to extract shadow information and produces a smoother result. The drawback is however it will only work with a well lit greenscreen and is way less error resistant than chroma keying.
The result looks something like this (taken with a really crappy green background) https://github.com/underdoeg/ofxGreenscreen/blob/9b153daf18aea40de72e06569703ffdd158fe7a1/example/bin/data/save/composition2.png