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Stephen's A8 Blog - Rasta Convertor


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First time I have ever taken a non-converting image, and fixed it, such that a suitable conversion is possible.

Before I reduced the detail in "certain" areas, this is the best result. Note the terrible tell-tale "horizontal banding".

Seeing that the image was struggling with two specific areas, I went in and removed most of the detail. Below will detail the before and after images.

  • Reduce the image to indexed 8-bit colour, using an Atari palette file (in this case, I used the default palette from Atari 800 Win+). I chose to use no dithering at this stage
  • I went in highly zoomed, and reduced problem areas down to basically 4 colours. This freed up additional colours for detail and completely eliminated any horizontal banding.


Here's the final conversion:

Attached thumbnail(s)
  • blogentry-650-0-45573900-1485572388_thum
  • blogentry-650-0-60926900-1485619439.jpg
  • blogentry-650-0-93996500-1485619201.jpg
  • blogentry-650-0-57801200-1485619282.png
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