The way HAM works, a pixel can be either one of only 16 colours, or the colour of the pixel to the left and change one component: red, green or blue.
Back in the day, I used a program that loaded GIFs in 256 colours and converted them to HAM. The resulting images had lots of edge artefacts, and that is what I would expect out of that too.
Back in the day, I used a program that loaded GIFs in 256 colours and converted them to HAM. The resulting images had lots of edge artefacts, and that is what I would expect out of that too.