Cover image going odd in Calibre

fading · 08-14-2009, 05:41 AM

I'm just converting my first file in Calibre and I'm having problems with the cover image. When I import my cover image, all of the colours go odd, and it just looks strange, almost like a negative image.

I am attaching the good file that I am importing, and then what Calibre turns it into!

kovidgoyal · 08-14-2009, 12:42 PM

Weird. How are you importing the cover, using the edit metadata dialog? And onw hat OS/version of calibre?

mrmikel · 09-30-2009, 12:19 PM

Windows XP on 0.6.14 - the latest - experienced the same problem converting a pdf...as it happens, it was the same one I uploaded to you for a sample for pdf conversion, about the RAF...only the color images went negative, the black and white images were ok.

Despite the problems you are trying to correct with pdf conversion, it already does much more than any other program I tried when I converted this pdf to an EPUB. Together with SIGL it was pretty easy to get rid of the extra headers and misplaced captions.

Am attaching the pdf and epub for your persual. The EPUB has been edited by me.

kovidgoyal · 09-30-2009, 12:37 PM

I'm busy re-compiling the entire windows C stack, including the PDF libraries. This should be in the enxt release. Try that and if the problem persists, let me know.

mrmikel · 10-03-2009, 02:14 PM

Sorry, images still going negative in .16.

Not sure they are exactly negative either, since if I do an invert in a graphics program it did not fix the problem.

It is a problem which can be worked around after conversion by simply going back to the original, taking a snapshot (if you are using foxit reader), saving the clipboard image in a graphics program and replacing the image (after deleting the old one) with the same name.

kovidgoyal · 10-03-2009, 03:47 PM

OK open a ticket and I'll take a look at it some time.

mrmikel · 10-05-2009, 01:27 PM

Since it is so easy to work around, it is a low priority. Ticket created.

08-14-2009, 05:41 AM	#1
fading Member Posts: 12 Karma: 10 Join Date: Jul 2009 Device: Kindle	Cover image going odd in Calibre I'm just converting my first file in Calibre and I'm having problems with the cover image. When I import my cover image, all of the colours go odd, and it just looks strange, almost like a negative image. I am attaching the good file that I am importing, and then what Calibre turns it into! Attached Thumbnails

10-03-2009, 02:14 PM	#5
mrmikel Color me gone Posts: 2,089 Karma: 1445295 Join Date: Apr 2008 Location: Central Oregon Coast Device: PRS-300	Color image still negative in .16 Sorry, images still going negative in .16. Not sure they are exactly negative either, since if I do an invert in a graphics program it did not fix the problem. It is a problem which can be worked around after conversion by simply going back to the original, taking a snapshot (if you are using foxit reader), saving the clipboard image in a graphics program and replacing the image (after deleting the old one) with the same name.

10-05-2009, 01:27 PM	#7
mrmikel Color me gone Posts: 2,089 Karma: 1445295 Join Date: Apr 2008 Location: Central Oregon Coast Device: PRS-300	No hurry Since it is so easy to work around, it is a low priority. Ticket created.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Cover Image for Calibre Quick-Start Guide	capidamonte	Calibre	3	11-03-2010 07:08 AM
Odd behaviour of Calibre in Windows 7	bmeddings	Calibre	10	04-16-2010 09:59 AM
Cover Image Compression.	Ichi	Calibre	3	01-04-2010 06:38 AM
Center a cover image	Crusader	Sigil	2	10-18-2009 08:51 AM
Odd occurance with Sigil & Calibre	slayda	Sigil	5	09-15-2009 05:58 PM

08-14-2009, 12:42 PM	#2
kovidgoyal creator of calibre Posts: 43,835 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Weird. How are you importing the cover, using the edit metadata dialog? And onw hat OS/version of calibre?

09-30-2009, 12:37 PM	#4
kovidgoyal creator of calibre Posts: 43,835 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	I'm busy re-compiling the entire windows C stack, including the PDF libraries. This should be in the enxt release. Try that and if the problem persists, let me know.

10-03-2009, 03:47 PM	#6
kovidgoyal creator of calibre Posts: 43,835 Karma: 22666666 Join Date: Oct 2006 Location: Mumbai, India Device: Various	OK open a ticket and I'll take a look at it some time.

Advert

Advert