Quote:
Originally Posted by chaley
My guess is that your huge covers are actually just slowing calibre down and buying you almost nothing. It will never be shown full size, so it is always being downscaled. The only advantage of keeping an original cover is to avoid multiple jpg compressions passes, because each one loses a little bit of quality.
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I don't want you to think I choose large cover sizes gratuitously, so let me explain my rationale. The reason I do it is not for any viewing benefits in the Calibre interface; it's solely for the ability to view book covers at full size on high resolution devices.
I noticed that as the screen resolution of my devices has increased, fewer and fewer of my existing covers at more standard sizes (such as 800 x 550 or 700 x 350) would be shown at full size in certain reader apps. Two such apps with this limitation are Cool Reader and Moon+ Reader. In Moon, you can see the cover expanded but you have to click on the cover to zoom in on it. It's a separate step. On the other hand, if the pixel dimensions of a book cover are as large or larger than your device's screen resolution, it will be shown at full size automatically upon opening the book in either of these two programs.
The screen resolution of my current Nook is 1440 x 900. But I anticipate in the future moving to a device with an even higher resolution, such as the Nexus 7.2's 1920 x 1200 size. So, that's the reason I have moved to larger covers. To better meet current needs and to future proof my books a little bit.
I understand viewing covers at full size is not even a priority for some. I've even read comments from some people here saying they don't even use covers for their ebooks. But I'm a little bit of a coverholic and deem covers essential to not only enjoying a book, but for also being able to easily browse and mange my library visually. At any rate, there is a rhyme and reason to why I choose large book covers.
Again, thanks for taking the time to address this issue. I appreciate it.
--Pat