Quote:
Originally Posted by davidfor
Looking at the screenshots, I do not see any issues with the cover images. They look like exactly what I would expect from the covers. One things is, you are using kepubs, so the covers are generated differently to my earlier description. In this case, the cover images are extracted from the books. The image in the book must be marked as the cover, but, that appears to be done correctly. The image size is changed for use in different places, but, not the aspect ratio. How the cover is displayed when the book is up to the code that displays this. I use SVG coding that fills the screen but keeps the aspect ratio of the actual image. That means there are usually white bands on the side of the images.
How the cover or first page is displayed is different for different devices. What the calibre viewer does depend on the code in the page marked as the cover. If it only has code to display the image, calibre ignores that code and just displays the image. If there is other code, it will render the page from the code. I don't know what the Kindles do, but, I suspect it is showing the actual cover image. If you had a tolino ereader, it shows the cover image for a few seconds and then show the first page of the book which will be rendered according to the code.
It might be a good idea to explain exactly what is wrong from your viewpoint. From mine, the covers look correct.
There are various options in the cover upload dialog. You need to play with them to get the affect you want.
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It could be a few issues with the cover. In some cases, the cover included in the eBook is not high enough resolution to fill the screen (top to bottom). The setting to show covers full screen on sleep defaults to off. So the cover sits in the middle of the screen maybe looking small.
What I do with such covers is try to find a hi-res cover using the download cover in the Calibre metadata editor. I have some metadata download plugins installed so I get covers from different sources to try to get a hi-res cover.
If the cover is set to display full screen but is to low a resolution, it can look fuzzy. If it's a high enough resolution (even if it's less then the screen resolution), it can look good enough full screen.