AncestorsValues | Value | Description |
| | sad | sum of absolute differences, fast | | | sse | sum of squared errors | | | satd | sum of absolute Hadamard transformed differences | | | dct | sum of absolute DCT transformed differences | | | psnr | sum of squared quantization errors (avoid, low quality) | | | bit | number of bits needed for the block | | | rd | rate distortion optimal, slow | | | zero | 0 | | | vsad | sum of absolute vertical differences | | | vsse | sum of squared vertical differences | | | nsse | noise preserving sum of squared differences | | | w53 | 5/3 wavelet, only used in snow | | | w97 | 9/7 wavelet, only used in snow | | | dctmax | | | | chroma | | |
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