Filtering thumb|128px|PNG's filter method 0 can use the data in pixels A, B, and C to predict the value for X. thumb|128px|A PNG with 256 colors, which is only 251 bytes large with pre-filter. The same image as a GIF would be more than thirteen times larger.
Filtering thumb|128px|PNG's filter method 0 can use the data in pixels A, B, and C to predict the value for X. thumb|128px|A PNG with 256 colors, which is only 251 bytes large with pre-filter. The same image as a GIF would be more than thirteen times larger.