port of ofxCvColorImageAlpha to openFrameworks 0.9.3
https://forum.openframeworks.cc/t/opencv-ofxcvimage-how-to-load-an-external-file/2119
not all features have been tested
copy files to addons/ofxOpenCv/src folder
add this line to ofxOpenCv.h file
#include "ofxCvColorImageAlpha.h"
ofApp.h
ofxCvColorImageAlpha alphaColorImg;
ofImage img;
ofApp.cpp
setup()
img.load("fileName.png");
alphaColorImg.allocate(img.getWidth(), img.getHeight());
alphaColorImg.setFromPixels(img.getPixels());
draw()
alphaColorImg.draw(0, 0);