Small fixes

AlexeyAB

2017-08-07 4579b589ba4b5d8f71b1b8c313527546b8956ad5

 src/image.c

@@ -1305,9 +1305,15 @@
image load_image(char *filename, int w, int h, int c)
{
#ifdef OPENCV
    image out = load_image_cv(filename, c);

#ifndef CV_VERSION_EPOCH
   image out = load_image_stb(filename, c);  // OpenCV 3.x
#else
    image out = load_image_stb(filename, c);
   image out = load_image_cv(filename, c);      // OpenCV 2.4.x
#endif

#else
    image out = load_image_stb(filename, c); // without OpenCV
#endif

    if((h && w) && (h != out.h || w != out.w)){