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Old 12-24-2009, 05:50 PM   #9
kacir
Wizard
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Posts: 3,463
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Join Date: May 2006
Device: PocketBook 360, before it was Sony Reader, cassiopeia A-20
Quote:
Originally Posted by norciom View Post
... But it's in the wrong format. You need BMP. In 16 shades. Or 4 bits.

To achieve that - on Linux - use Gimp's
Colors->Desaturate to make it black and white
Colors->Posterize, 4 levels and save as Windows Bitmap
Good to know.

I used convert command from Imagemagick package. All my pictures were manually cropped and/or resized to 800x600 or 600x800 pixels, then I made a script with such lines:
Code:
convert bgpic01.png -quantize GRAY +dither -colors 16 -rotate "-90>" bgpic01.bmp
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