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Old 09-11-2011, 03:51 AM   #7
larrymohr
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Posts: 103
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Join Date: Jul 2010
Location: Surrey, B.C.
Device: KOBO Vox, Google Nexus 7, Kobo AURA, Kobo Mini
I did some more checking tonite and there is a fifth thumbnail created. This is the one used for the sleep and power off screens and is 800x600 and does not get created until you open the book.

I did a test and what seems to happen is that the KT will leave an 800x600 image untouched ( except for dithering to grayscale ) but the width of the smaller thumbnails is squeezed to match the proportions of the particular thumbnail. Because the amount of distortion is small it is very difficult to detect.

I have not tried any cover images at other dimensions or proportions yet, for example 600x600 or 729x544.

NOTE: this firmware (1.9.10) uses a new algorithm for creating the thumbnails.

Larry
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