ofxCvGrayscaleImage brightnessContrast

tried to search for this but both ofxCvGrayscaleImage and brightnessContrast are too long for the restrictions

Getting an error when trying to use this in of_preRelease_v0061_osxSL_FAT/opencvExample. I just added this

// take the abs value of the difference between background and incoming and then threshold:  
		grayDiff.brightnessContrast(10, 10);  

ya me too error

Moi aussi. I posted this to the github too.