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Old 06-24-2008, 10:52 AM   #3
wallcraft
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Posts: 6,977
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Join Date: Mar 2006
Location: Mississippi, USA
Device: Kindle 3, Kobo Glo HD
Quote:
Originally Posted by _Ea_ View Post
How does the mobipockets format handle images? Like jpg's in an html file?
MobiPocket originally only supported GIFs, and converted everything to GIF. They also tended to have small images, partially because of a small screen customer base and partially from a ~62KB image size limit. They now support, and favor, JPEG. Usually of any size, although some old devices may still need the images to be less than 62KB.

I can see advantages to customizing images for the target device, but in many cases I think the best approach is now to use as large a good quality image as possible e.g. 1024x1024 JPEGs. If it is in color, leave it in color. I do see advantages in "optimizing" the colors for 4-16 grey scales, if that can be done without relying on the details of how the device downscales. Screen resolutions will get higher, and screens may get a bit bigger. LCD 7" screens started out as 480x800, but now 600x1024 is common. A 9.7" E-Ink screen will be 825x1200. Also, some screens will be in landscape and others in portrait orientation.
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