Re: Apple II Music Video - Welcome to the Jungle!!

["Michael J. Mahon" <mjmahon@aol.com>]

Frank M. wrote:
> Here's the code for rendering the lores photoshop TIFFs onto the A2 GR
> screen.....

Frank, it's pretty awesome to watch the results of your rendering
on an Apple II!

I notice lots of sequences where there are regions containing
very little detail.  For example, outlines of figures are
often visible, but any detail in the figure is missing (which
would be expected if the figure is only a silhouette in the
original).

Have you considered using dynamic thresholds between colors that
track "median" colors of regions, so that details would tend to be
rendered instead of "falling into the same color bucket"?

If a little noise were introduced into these thresholds, it would
also add time-domain color dither, which would have the effect of
increasing the palette.

I realize that I'm talking about an adaptive algorithm that may
have to be "custom" instead of a pre-built image filter, but maybe
this has already been done to handle the "posterization" operation...

I think that a little increase in color distortion would be a small
price to pay for increased visible picture detail.

-michael

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