#ifndef HIDEBACKGROUND_H
#define HIDEBACKGROUND_H

void hideBackRGBDiff(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, int width, int height);
void hideBackNormRGBDiff(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, int width, int height);
void hideBackElgammalsrg(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, double* avg_norm, double* std_dev_norm, int width, int height);
void hideBackHueDiff(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, int width, int height);
void hideBackRGBDiffHueDiff(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, int width, int height);
void hideBackHongRGB(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, unsigned char* avg, double* std_dev, int width, int height);
void hideBackHongrgb(unsigned char* img, unsigned char* bmask, unsigned char usePrevMask, double* avg_norm, double* std_dev_norm, int width, int height);
void hideImgBackground2(unsigned char* img, unsigned char* avg, int width, int height);
void hideImgBackground3(unsigned char* img, unsigned char* avg, int width, int height);

#endif