Table 2: Limited accumulation of quantization error with weighting
Quantization error list
source pixel
adjusted pixel
quantized pixel
0
0
0
0
128
128
255
0
0
0
-127
128
1
0
0
0
-127
128
128
176
255
0
-127
128
-127
128
30
0
-127
128
-127
128
128
195
255
128
-127
128
-127
128
63
0
weights
0.25
0.40
0.63
1.0