Absdiff in ofxOpenCv

Hi, i was wondering if there is something like absdiff from ofxCv but in ofxOpenCv?

I need to be able to perform this function using ofxOpenCv, any idea?

take a look at the openCvExample in the examples/addons folder, it does exactly that using the ofxOpenCv addon

it’s part of the ofxCvGrayscaleImage object: