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Old 06-10-2020, 04:12 AM   #2133
droopy
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Posts: 834
Karma: 2912460
Join Date: Apr 2009
Device: Kobo Forma
Quote:
Originally Posted by droopy View Post
I'm running Calibre v4.18.0 on linux. KTE driver is 3.2.9 (currently beta).In [Collections, covers & uploads] tab, I have checkmarks for the [Upload Covers] and all 5 options within that section, including "Upload Black and White covers"
Yet when I examine the kepub on my Kobo in calibre viewer (while computer is connected to Kobo), the cover is still full-color.
Quote:
Originally Posted by davidfor View Post
The option is not about the copy of the cover in the book. If this option is not selected, the device generates and stores cover images as needed. This option lets calibre do that.
I see. With this option selected, it is Calibre (harnessing a computer's processing power) and not a Kobo device (with puny power) that generates the images.

But what I still don't understand: What's the point of generating grayscale images in the first place, if not to save space on the Kobo?
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