Re: Apple II Colour --> RGB

[mjmahon@aol.com (Michael J. Mahon)]

Ned Ludd wrote:

>My plan was to convert photographs to HI-RES or DOUBLE HI-RES screens by
>first saving them in .gif format and then opening them in II.GIF. So far
>the results have been hideous.
>
>Here's what I'm doing in more detail:
>   (In Photoshop)
> - Scan photo; crop/resize to 280x192 pixels.
> - For colour pics, resize again to 140x192 with "nearest neighbour" 
>   resampling. Resize back to 280x192 to "stretch" pixels.***
> - Save as GIFF file using colours indexed to match A2 output.
> - Transfer GIFF files --> Apple II.
> - Convert to HGR or DHR in II.GIF
> - Go back to the drawing board ;-)
>
>What I'm finding is that II.GIF does a fine job of approximating some of
>the colours, but is way off on others.
>
>*** The pixel-stretching seems to help a bit, my understanding is that
>    colours produced by combinations of two adjacent pixels, so I've
>    included this step to minimize noise.

][GIF is trying to solve a very difficult problem, since it has such
a limited palette available on the Apple II, even in DHR.

It sounds like you're doing the right things in Photoshop.
If you can bypass ][GIF entirely, you'll be ahead of the game.

Maybe there's a relatively simple .bmp to Apple II conversion...

-michael

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