Added support for custom data with png image files

Rakesh Jasti

2017-04-26 c3b9e4453884f9e44761987fce3b9c6a3dae447b

 src/voxel.c

@@ -5,6 +5,7 @@

#ifdef OPENCV
#include "opencv2/highgui/highgui_c.h"
image get_image_from_stream(CvCapture *cap);
#endif

void extract_voxel(char *lfile, char *rfile, char *prefix)