| 938 |
return psnr_y; |
return psnr_y; |
| 939 |
} |
} |
| 940 |
|
|
| 941 |
|
|
| 942 |
|
float sse_to_PSNR(long sse, int pixels) |
| 943 |
|
{ |
| 944 |
|
if (sse==0) |
| 945 |
|
return 99.99F; |
| 946 |
|
|
| 947 |
|
return 48.131F - 10*(float)log10((float)sse/(float)(pixels)); // log10(255*255)=4.8131 |
| 948 |
|
|
| 949 |
|
} |
| 950 |
|
|
| 951 |
|
long plane_sse(uint8_t * orig, |
| 952 |
|
uint8_t * recon, |
| 953 |
|
uint16_t stride, |
| 954 |
|
uint16_t width, |
| 955 |
|
uint16_t height) |
| 956 |
|
{ |
| 957 |
|
int diff, x, y; |
| 958 |
|
long sse=0; |
| 959 |
|
|
| 960 |
|
for (y = 0; y < height; y++) { |
| 961 |
|
for (x = 0; x < width; x++) { |
| 962 |
|
diff = *(orig + x) - *(recon + x); |
| 963 |
|
sse += diff * diff; |
| 964 |
|
} |
| 965 |
|
orig += stride; |
| 966 |
|
recon += stride; |
| 967 |
|
} |
| 968 |
|
return sse; |
| 969 |
|
} |
| 970 |
|
|
| 971 |
/* |
/* |
| 972 |
|
|
| 973 |
#include <stdio.h> |
#include <stdio.h> |
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