On preparing photos for e-ink screens

[HarryT]

Originally Posted by =X=

The PRS-505 is 8bits so thats 2^8 = 256 shades.
I don't think the cybook is 4 shades is probably 4bits, like the Kindle. So that would be 2^4= 16 shades.


=X=

No, that's not correct. The PRS-505 is 8 GREY-SCALES - ie 3 bits. The CyBook and Kindle are both 4 grey-scales - 2 bits. The iLiad is 16 grey-scales - 4 bits.

[RickyMaveety]

Originally Posted by Jellby

No, it does not crop anything. It resizes the image, keeping its proportion, so that it fits in a 600x800 screen (the width is less than 601 and the height is less than 801).

A 1000x1000 image will be reduced to 600x600.

A 500x1000 image will be reduced to 400x800.

A 300x100 image will be enlarged to 600x200 (but you can use "-resize 600x800\>", and then it will not be changed.

Pretty much any screen will do that. That just means that your picture will not be shown to it's best effect.

The idea with my post is that, those people who want their pictures to actually look good on the screen should consider doing some prep work. As long as you don't much care how your pictures look, then prep work is really not the problem.