[Qt-interest] Image format plug-in for RAW and PhotoShop?

[Mihail Naydenov]

----- Original Message ----
> From: "Oliver.Knoll at comit.ch" <Oliver.Knoll at comit.ch>
> To: qt-interest at trolltech.com
> Sent: Tue, May 4, 2010 6:44:36 PM
> Subject: Re: [Qt-interest] Image format plug-in for RAW and PhotoShop?
> 
> Chris Meyer wrote on Tuesday, May 04, 2010 5:27 PM:

> Does anyone know 
> if there image format plug-ins available for RAW
> (.CR2, .NEF) or 
> PhotoShop (.psd) files?

I am not aware of any Qt image format plugin, but 
> you could maybe come up with your own, using ImageMagick (if license conditions 
> allow):

  http://www.imagemagick.org/
  
> http://www.imagemagick.org/Magick++/

ImageMagick explicitly lists the 
> abovementioned formats as supported: 
> http://www.imagemagick.org/script/formats.php

The only tricky part would 
> be how to efficiently convert from the Magick++ data structure 'Image' to Qt's 
> QImage structure (for 32 bit rgba data it would maybe not so difficult, keeping 
> in mind data alignmend and endianess etc.). A practical and lazy hack (for small 
> image data) for me was to save a QImage into a QByteArray as "PNG" and read this 
> from memory into the Magick 'Image' and vice versa: store the Magick 'Image' 
> in-memory as PNG and use QImage::read to read that "PNG". Performance was okay 
> for me in practise. If you come up with an efficient way to convert Magick++ 
> Image <-> QImage I would be interested to know ;)


You can also try FreeImage, the last version also support RAW 




Cheers, 
> Oliver
-- 
Oliver Knoll
Dipl. Informatik-Ing. ETH
COMIT AG - ++41 79 
> 520 95 22
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