Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Kobo Reader

Notices

Reply
 
Thread Tools Search this Thread
Old 10-17-2011, 05:35 PM   #1
Buddy13
overt-ops.com
Buddy13 began at the beginning.
 
Buddy13's Avatar
 
Posts: 6
Karma: 10
Join Date: Oct 2011
Location: Nanashi Island
Device: Kobo
Aspect Ratio for Covers?

While creating ePubs of my first book, I've decided to create a nice cover image for it. However, I created it a 8.5x11 inches. But the aspect ratio on the Kobo squishes it a bit.

Does anyone know the aspect ratio of the Kobo screen? Or better yet, the exact pixel dimensions (Kobos don't even use pixels, do they?).

Would this aspect ratio be standard for most other eReaders, as well?
Buddy13 is offline   Reply With Quote
Old 10-17-2011, 05:50 PM   #2
The Terminator
Retired
The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.The Terminator ought to be getting tired of karma fortunes by now.
 
Posts: 2,552
Karma: 37638420
Join Date: Nov 2010
Location: Vancouver Island Canada
Device: Kobo Touch, Optimus One (2.3), Nexus 7 (4.2)
I think Calibre will convert the cover to what ever size the Kobo Touch uses.
The Terminator is offline   Reply With Quote
 
Enthusiast
Old 10-17-2011, 06:03 PM   #3
BryanK
Enthusiast
BryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of lightBryanK is a glorious beacon of light
 
Posts: 25
Karma: 12062
Join Date: Oct 2011
Device: Kobo Wifi
Calibre added a 600x800 pixel cover to the epub I checked. I've been meaning to play around with this, so I'll let you know if I find anything different.
BryanK is offline   Reply With Quote
Old 10-17-2011, 06:54 PM   #4
JSWolf
Resident Curmudgeon
JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.JSWolf ought to be getting tired of karma fortunes by now.
 
JSWolf's Avatar
 
Posts: 36,168
Karma: 17163730
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Sony Reader PRS-650, iPad, nook STR
There is an option in Calibre to keep the aspect ration of the cover. It seems it's not being used.
JSWolf is offline   Reply With Quote
Old 10-19-2011, 09:25 AM   #5
Nigol
Groupie
Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.Nigol ought to be getting tired of karma fortunes by now.
 
Nigol's Avatar
 
Posts: 182
Karma: 363616
Join Date: Dec 2010
Location: Montreal, Canada
Device: Kobo Original, Kobo Touch
Regardless of the options you used in calibre to convert the file. the Kobo will stretch the file to fit the screen.

SO for the OP the best options would be to create a cover that has a ratio of 3:4 as most reader have this screen size.
Nigol is offline   Reply With Quote
Old 10-21-2011, 12:56 AM   #6
Buddy13
overt-ops.com
Buddy13 began at the beginning.
 
Buddy13's Avatar
 
Posts: 6
Karma: 10
Join Date: Oct 2011
Location: Nanashi Island
Device: Kobo
Quote:
Originally Posted by Nigol View Post
Regardless of the options you used in calibre to convert the file. the Kobo will stretch the file to fit the screen.

SO for the OP the best options would be to create a cover that has a ratio of 3:4 as most reader have this screen size.
That seems a bit fat. 3:4 is like a non-widescreen TV, right?

Calibre didn't convert the cover I created, neither by altering the images dimensions nor by means of the dimensions specified on the titlepage.html

It just plops it in in its original dimensions, and the Kobo squishes it from the sides.

I guess the easiest thing to do would be to create a dummy ePub and have the cover be a 3:4 image with a perfect circle in the middle. Then try to maybe adjust the size bit by bit until it is also a perfect circle on the Kobo.

Sorry for the slow reply, I could've sworn I set the thing to "Instant email notification" but I only just got the email.
Buddy13 is offline   Reply With Quote
Old 10-21-2011, 01:00 AM   #7
Canorka
Connoisseur
Canorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura about
 
Posts: 89
Karma: 4254
Join Date: Oct 2010
Location: Canada
Device: Kobo Touch
I created a 800x600 cover for a book and it still got "squished from the sides." Just weird behaviour.
Canorka is offline   Reply With Quote
Old 10-21-2011, 01:02 AM   #8
Buddy13
overt-ops.com
Buddy13 began at the beginning.
 
Buddy13's Avatar
 
Posts: 6
Karma: 10
Join Date: Oct 2011
Location: Nanashi Island
Device: Kobo
Quote:
Originally Posted by Canorka View Post
I created a 800x600 cover for a book and it still got "squished from the sides." Just weird behaviour.
Is there an official spec anywhere that defines the aspect ratio or pixel dimensions?
Buddy13 is offline   Reply With Quote
Old 10-21-2011, 01:57 AM   #9
Canorka
Connoisseur
Canorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura aboutCanorka has a spectacular aura about
 
Posts: 89
Karma: 4254
Join Date: Oct 2010
Location: Canada
Device: Kobo Touch
Not that I know of, but maybe? There has been a little prior discussion surrounding this topic though, which is where I got the 800x600 pixels ratio from.
Canorka is offline   Reply With Quote
Old 10-21-2011, 03:27 AM   #10
Buddy13
overt-ops.com
Buddy13 began at the beginning.
 
Buddy13's Avatar
 
Posts: 6
Karma: 10
Join Date: Oct 2011
Location: Nanashi Island
Device: Kobo
Quote:
Originally Posted by Canorka View Post
Not that I know of, but maybe? There has been a little prior discussion surrounding this topic though, which is where I got the 800x600 pixels ratio from.
If anything, it should be 600x800, being that it's portrait oriented...
Buddy13 is offline   Reply With Quote
Old 10-21-2011, 07:45 AM   #11
timlegge
Addict
timlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than momtimlegge loves his/her reader more than mom
 
Posts: 305
Karma: 78651
Join Date: May 2010
Location: New Brunswick, Canada
Device: Kobo, Kobo Wifi, Kobo Touch
The device takes what ever cover image it finds in the epub and converts it to some of the following:

- iPhoneThumbnail.parsed'- 103,150),
- bbMediumGridList.parsed' - 93,135),
- NickelBookCover.parsed' - 500,725),
- N3_LIBRARY_FULL.parsed' - 355,530),
- N3_LIBRARY_GRID.parsed' - 149,233),
- N3_LIBRARY_LIST.parsed' - 60,90),
- N3_FULL.parsed' - 600,800),
- N3_SOCIAL_CURRENTREAD.parsed' - 120,186)

Tim
timlegge is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
4:3 vs 16:9 aspect ratio - what's your preference? Wetdogeared General Discussions 59 02-17-2011 10:48 AM
Cover image aspect ratio for mobi Evildad Conversion 4 01-27-2011 10:29 PM
PRS-350 Aspect Ratios 9cameron Sony Reader 1 12-20-2010 04:22 AM
Confused about the new preserving the aspect ratio of the cover option Amalthia Calibre 2 05-24-2010 11:37 PM
Aspect ratio of Kindle cover art? Skydog Kindle Formats 7 06-02-2009 04:46 PM


All times are GMT -4. The time now is 07:42 PM.


MobileRead.com is a privately owned, operated and funded community.