MobileRead Forums - View Single Post - Touch Calibre, Kobo Touch & Cover Artwork

theboyk · 11-15-2012, 02:53 PM

Well, I loaded the ePub you sent me and the cover is still vertically stretched on the Kobo home screen. I ran multiple tests and it continues to be based on what the settings are for my margins.

I also looked at the cover files in the images directory, and those files were all the correct aspect ration. So, it seems like the Home Screen itself is distorting the image it's using on-the-fly.

That said, I started looking at Kobo Store-based purchases and they were doing the same thing—the covers are either vertically stretched on the Home Screen or they're horizontally squished on the sleep/off screen (it all depends on the original image and which is correct).

Below I've linked to an example of the cover to a book I've purchased on the Kobo. On the left is the N3_FULL version of the cover. On the right is the N3_LIBRARY_FULL version of the cover (scaled up to match the 600px width of the N3_FULL cover). As you can see, the N3_FULL version of the cover is horizontally squished.

So, I did a little more testing on the files themselves and it turns out that the N3_FULL version is not used for both the Home Screen and the Sleep Screen—it's only used for the Sleep Screen. It's the N3_LIBRARY_FULL version that's used for the Home Screen. To determine this, I edited the two versions of the cover files, adding the text "FULL" to the N3_FULL version and "FULL LIB" to the N3_LIBRARY_FULL version. And these are the results on the Kobo:

SLEEP SCREEN (N3_FULL)

HOME SCREEN (N3_LIBRARY_FULL)

So, from all my testing, I just don't see a way to get proper aspect ratios on both the Home and Sleep screens (unless you have your margins set to zero)—one will be either stretched or squished, depending on the original cover.

Thoughts?

11-15-2012, 02:53 PM	#17
theboyk Member Posts: 15 Karma: 4212 Join Date: Nov 2011 Device: Kobo Touch	Well, I loaded the ePub you sent me and the cover is still vertically stretched on the Kobo home screen. I ran multiple tests and it continues to be based on what the settings are for my margins. I also looked at the cover files in the images directory, and those files were all the correct aspect ration. So, it seems like the Home Screen itself is distorting the image it's using on-the-fly. That said, I started looking at Kobo Store-based purchases and they were doing the same thing—the covers are either vertically stretched on the Home Screen or they're horizontally squished on the sleep/off screen (it all depends on the original image and which is correct). Below I've linked to an example of the cover to a book I've purchased on the Kobo. On the left is the N3_FULL version of the cover. On the right is the N3_LIBRARY_FULL version of the cover (scaled up to match the 600px width of the N3_FULL cover). As you can see, the N3_FULL version of the cover is horizontally squished. So, I did a little more testing on the files themselves and it turns out that the N3_FULL version is not used for both the Home Screen and the Sleep Screen—it's only used for the Sleep Screen. It's the N3_LIBRARY_FULL version that's used for the Home Screen. To determine this, I edited the two versions of the cover files, adding the text "FULL" to the N3_FULL version and "FULL LIB" to the N3_LIBRARY_FULL version. And these are the results on the Kobo: SLEEP SCREEN (N3_FULL) HOME SCREEN (N3_LIBRARY_FULL) So, from all my testing, I just don't see a way to get proper aspect ratios on both the Home and Sleep screens (unless you have your margins set to zero)—one will be either stretched or squished, depending on the original cover. Thoughts?