Dyna Res and SHAM

[TjLaZer]

ok someone now post some Spectrum 512 images!!

[DamageX]

Have you tried the freely downloadable Amiga program Hamlab? There was a thread about it here somewhere. It could open JPGs (maybe other formats, I forget) and convert to various types of ILBM, including sliced/HAM

That program gave me some ideas that I used to make my own color reduction/optimization utilities targetting other platforms.

see this converted image for an Atari (80x200 resolution, 128 available colors, 9 colors per line) http://www.hyakushiki.net/bc320.png

same image on MSX2 (512x424 resolution (interlaced), 512 available colors, 14 colors per line) http://www.hyakushiki.net/bc512.png

an image converted for the TurboGrafx16 (352x224 resolution, 512 available colors, 16 palettes of 15 colors) http://www.hyakushiki.net/j-idols.png

OCS Amiga can do even a little better than MSX2

[skurk]

Rowbeartoe wrote:
Now to find something that can convert to SHAM that isn't GIF.  GIF is only 256 colors.

Well.. not exactly: True-colour GIF example

I've been playing with the "dyna hires" mode myself, and ended up with a massive "hack" which converts any image to raw and supplies a matching copperlist.

It's a {bleep} to maintain, but it works.



This is 243 colours in 640x256x4.

[buzz]

Hamlab plus is the best converter for this stuff. I believe the most recent versions were commercial, but I reckon its out there if you can find it.

[Rowbeartoe]

Hey Skurk.

That dynami HiRes picture looks great- if it wasn't for the sky- it looked almost 24bit.  =)