// Utils.h -- general image helper functions
//
// Copyright © Daniel Scharstein, 2003.
//
///////////////////////////////////////////////////////////////////////////

#define ROUND(x) ((x) > 0 ?  ((int)((x) + .5)) : ((int)((x) - .5)))

// downsample a color image simply by averaging 4 pixels together
void downsample(CByteImage im, CByteImage &im2);

// return a random float in closed interval min, max
inline float randIn(float min, float max)
{
	float r = (float)rand() / (float)RAND_MAX;
	return min + r * (max-min);
}
// miscellaneous

// read an image and perhaps tell the user you're doing so
void ReadImageVerb(CImage& img, const char* filename, int verbose);

// write out an image and perhaps tell the user you're doing so
void WriteImageVerb(CImage& img, const char* filename, int verbose);

// safe parsing of integer argument
int atoiSafe(char *s);

//write float concisely.  Rounds data.
void justify(float f);

//write nFrames images based on the integers in allData
void arrayToImage(int*** allData, int nFrames, int h, int w, char* name);