The below hexdump encodes a tiny, two-by-two pixel farbfeld-format image.
66 61 72 62 66 65 6c 64
00 00 00 02
00 00 00 02
eeee 0000 0000 ffff 4444 dddd 3333 ffff
1111 2222 aaaa ffff cccc bbbb 0000 ffff
Use e.g. xxd -r -p file-containing-the-above-text > mini.ff
to turn it into an actual file, which should contain 48 bytes.
Here is the image in PNG form, magnified to 40 by 40 pixels:
Posted 2024-07-17. Index