static float ssim_end4( int sum0[5][4], int sum1[5][4], int width ) { int i; float ssim = 0.0; for( i = 0; i < width; i++ ) ssim += ssim_end1( sum0[i][0] + sum0[i+1][0] + sum1[i][0] + sum1[i+1][0], sum0[i][1] + sum0[i+1][1] + sum1[i][1] + sum1[i+1][1], sum0[i][2] + sum0[i+1][2] + sum1[i][2] + sum1[i+1][2], sum0[i][3] + sum0[i+1][3] + sum1[i][3] + sum1[i+1][3] ); return ssim; }
static float ssim_endn_8bit(const int (*sum0)[4], const int (*sum1)[4], int width) { float ssim = 0.0; int i; for (i = 0; i < width; i++) ssim += ssim_end1(sum0[i][0] + sum0[i + 1][0] + sum1[i][0] + sum1[i + 1][0], sum0[i][1] + sum0[i + 1][1] + sum1[i][1] + sum1[i + 1][1], sum0[i][2] + sum0[i + 1][2] + sum1[i][2] + sum1[i + 1][2], sum0[i][3] + sum0[i + 1][3] + sum1[i][3] + sum1[i + 1][3]); return ssim; }