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

Go Back   MobileRead Forums > E-Book Formats > ePub

Notices

Reply
 
Thread Tools Search this Thread
Old 11-18-2009, 04:24 PM   #1
Zorba
50 Benefits of Ebooks
Zorba began at the beginning.
 
Posts: 8
Karma: 10
Join Date: Sep 2009
Location: Ithaca, New York
Device: iPad
Reference Guide: How to Prepare Images for EPUB (and other) Formats

Hello and thanks in advance,

I'm looking for some expert help on the subject of how to prepare images for ebooks, for the essential ebook formats, reading systems and devices. I thought that I could capture two pigeons with one bean if I not only gathered this information, but shared it with the epublishing community.

Please take a glance at this web page -- down on the bottom half of the page -- and you'll see the beginnings of some tables where much information is needed.

http://www.zorba.us/?page_id=676

The goal is to provide a quick and handy kind of "cheat sheet" for anyone making ebooks in some of the major formats: EPUB, PDF, Kindle.

Help with this project would be much appreciated, either by answers here, or contacting me directly. When this project is complete, or nearer to completion, I will post back to this thread.

Also, if someone at MobileRead would like to take charge of this project, and post this information on a MobileRead wiki page, I am happy to pass the torch.

Thanks again,

Michael Pastore
50 Benefits of Ebooks
Zorba is offline   Reply With Quote
Old 11-18-2009, 06:13 PM   #2
Patricia
Reader
Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.
 
Patricia's Avatar
 
Posts: 11,520
Karma: 2199070
Join Date: May 2007
Location: South Wales, UK
Device: Sony PRS-500, PRS-505, Asus EEEpc 4G
Some of the information can be extracted from our wiki. For example, the image formats supported by each device are listed in the E-Book reader matrix:

http://wiki.mobileread.com/wiki/E-book_Reader_Matrix
Patricia is offline   Reply With Quote
Old 11-18-2009, 06:29 PM   #3
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: 36,747
Karma: 17807604
Join Date: Nov 2006
Location: Roslindale, Massachusetts
Device: Sony Reader PRS-650, iPad, nook STR
One bit of information is don't make the images any larger than 800x600 and make sure that they scale properly to fit the page.
JSWolf is online now   Reply With Quote
Old 11-18-2009, 06:37 PM   #4
Zorba
50 Benefits of Ebooks
Zorba began at the beginning.
 
Posts: 8
Karma: 10
Join Date: Sep 2009
Location: Ithaca, New York
Device: iPad
Patricia, thank you. I'll visit that matrix and then add some image types.

JSWolf, thank you. Is that:

800 (width) by 600 (height),

or

800 (height) by 600 (width).

--MP
Zorba is offline   Reply With Quote
Old 11-18-2009, 11:01 PM   #5
Patricia
Reader
Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.
 
Patricia's Avatar
 
Posts: 11,520
Karma: 2199070
Join Date: May 2007
Location: South Wales, UK
Device: Sony PRS-500, PRS-505, Asus EEEpc 4G
It is 800 pixels in height, and 600 in width.
Patricia is offline   Reply With Quote
Old 11-18-2009, 11:12 PM   #6
Zorba
50 Benefits of Ebooks
Zorba began at the beginning.
 
Posts: 8
Karma: 10
Join Date: Sep 2009
Location: Ithaca, New York
Device: iPad
Thanks again, Patricia.

I am writing to all the device makers, to get details -- about optimizing the images -- for viewing ebooks (in EPUB and PDF) on their devices.

I will report back here, to this thread, when some progress has been made.

-- MP
Zorba is offline   Reply With Quote
Old 11-19-2009, 02:56 PM   #7
Rayven01
Nevermore
Rayven01 will become famous soon enoughRayven01 will become famous soon enoughRayven01 will become famous soon enoughRayven01 will become famous soon enoughRayven01 will become famous soon enoughRayven01 will become famous soon enough
 
Rayven01's Avatar
 
Posts: 51
Karma: 591
Join Date: Nov 2009
Location: St Louis, MO
Device: Nook, Nook Color, Stanza(iphone)
Quote:
Originally Posted by JSWolf View Post
One bit of information is don't make the images any larger than 800x600 and make sure that they scale properly to fit the page.
How do you make sure they scale properly, short of using vector graphics? Isn't that up to the device?
Rayven01 is offline   Reply With Quote
Old 11-19-2009, 09:48 PM   #8
Zorba
50 Benefits of Ebooks
Zorba began at the beginning.
 
Posts: 8
Karma: 10
Join Date: Sep 2009
Location: Ithaca, New York
Device: iPad
Hello Rayven01,

Until a graphics expert jumps in here, here is my guess.

I think that JSWof's good advice (which I will add to this project's web page) has something to do with the aspect ratio. I couldn't get an EPUB ebook cover image to show up using Stanza desktop, and then I adjusted the aspect ratio, making the image less wide, and then it appeared perfectly.

A test is always needed to see if the image shows up, if the image is still sharp, if it's in the right location, and so on.

--MP
Zorba is offline   Reply With Quote
Old 11-20-2009, 03:53 AM   #9
pdurrant
The Grand Mouse
pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.pdurrant ought to be getting tired of karma fortunes by now.
 
pdurrant's Avatar
 
Posts: 31,455
Karma: 87141754
Join Date: Jul 2007
Location: Norfolk, England
Device: NOOK ST GlowLight
Quote:
Originally Posted by Rayven01 View Post
How do you make sure they scale properly, short of using vector graphics? Isn't that up to the device?
In ePub you can embed any image in an SVG wrapper, which can make it scale to fit the available space.
pdurrant is offline   Reply With Quote
Old 11-20-2009, 09:11 AM   #10
Jellby
frumious Bandersnatch
Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.Jellby ought to be getting tired of karma fortunes by now.
 
Jellby's Avatar
 
Posts: 6,105
Karma: 4791309
Join Date: Jan 2008
Location: Spaniard in Sweden
Device: Cybook Orizon, Kobo Aura
Quote:
Originally Posted by pdurrant View Post
In ePub you can embed any image in an SVG wrapper, which can make it scale to fit the available space.
I'm not sure current renderers treat relative height specifications (e.g., 100%) as related to the screen size, though
Jellby is offline   Reply With Quote
Old 11-20-2009, 04:03 PM   #11
hapax legomenon
Erotica Writer
hapax legomenon doesn't litterhapax legomenon doesn't litter
 
hapax legomenon's Avatar
 
Posts: 102
Karma: 106
Join Date: Jul 2007
Location: Tulsa, OK
Device: ipad, Sony Reader PRS 505, Cybook 3
is it necessary to create a grayscale version of the image for e-ink devices?
hapax legomenon is offline   Reply With Quote
Old 11-20-2009, 04:21 PM   #12
Patricia
Reader
Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.Patricia ought to be getting tired of karma fortunes by now.
 
Patricia's Avatar
 
Posts: 11,520
Karma: 2199070
Join Date: May 2007
Location: South Wales, UK
Device: Sony PRS-500, PRS-505, Asus EEEpc 4G
Quote:
Originally Posted by hapax legomenon View Post
is it necessary to create a grayscale version of the image for e-ink devices?
Not necesarily, hapax. I often leave my images in colour, just in case someone is reading on a PC or tablet. My Sony just shows greyscale in these cases.
Patricia is offline   Reply With Quote
Old 11-21-2009, 08:24 AM   #13
Zorba
50 Benefits of Ebooks
Zorba began at the beginning.
 
Posts: 8
Karma: 10
Join Date: Sep 2009
Location: Ithaca, New York
Device: iPad
Thanks, hapax, for the question, and thanks Patricia, for the reply.

This is one of the main points of my information-gathering project: to find "the right specs" so that ebook publishers can produce one -- only one ! -- version of the ebook that fit all the various reading systems (or: all the significant ones), and to avoid the trouble and chaos of needing to produce many different versions of the same ebook.

Michael Pastore
50 Benefits of Ebooks
Zorba is offline   Reply With Quote
Old 11-22-2009, 08:28 AM   #14
hapax legomenon
Erotica Writer
hapax legomenon doesn't litterhapax legomenon doesn't litter
 
hapax legomenon's Avatar
 
Posts: 102
Karma: 106
Join Date: Jul 2007
Location: Tulsa, OK
Device: ipad, Sony Reader PRS 505, Cybook 3
Here's another relevant document by keith fahlgren
http://blog.threepress.org/2009/11/2...-cover-images/
hapax legomenon 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
Convert Epub and Msreader formats to Kindle formats bruc79 Calibre 17 06-22-2010 04:50 AM
Multiple reference elements with the same type in the <guide> Valloric ePub 8 04-25-2010 11:18 AM
Adding a <reference> item to <guide> in OPF file GRiker Sigil 2 04-12-2010 01:06 PM
Definitive Guide to eBook Formats? Rootman Workshop 7 11-27-2009 05:00 PM
Free PDF: Ubuntu Pocket Guide and Reference TadW Deals, Freebies, and Resources (No Self-Promotion) 4 01-30-2009 11:22 PM


All times are GMT -4. The time now is 05:46 PM.


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