image formats intro: jpeg png gif webp
Summary of popular formats
| format | lossy? | number colors |
|---|---|---|
| PNG | lossless | 8 bits perl channel |
| JPEG | lossy | 8 bits perl channel |
| WebP | lossy or lossless | 8 bits perl channel |
| GIF | lossless | 256 total |
| format | animation |
|---|---|
| PNG | no |
| JPEG | no |
| WebP | yes |
| GIF | yes |
Lossy means each time you save to the format, the quality degrades.
If the destination format do not support some features, such as colors, it'll be lost. E.g. Converting from png to gif.