[magick-users] Converting PowerShot G3 .CRW files to readable format

[Moffet, Scott]

I encountered the same thing and was able to attain satisfactory results
by upping the brightness argument and turning down the gamma on the
conversion.

	dcraw -g 0.6 -b 1.3 filename

tweak on these two


this makes a .PPM, which can then easily be converted to TIFF using IM

HTH
Scott

-----Original Message-----
From: magick-users-bounces at imagemagick.org
[mailto:magick-users-bounces at imagemagick.org]On Behalf Of Robert S
Sent: Friday, January 30, 2004 7:48 PM
To: magick-users at imagemagick.org
Subject: [magick-users] Converting PowerShot G3 .CRW files to readable
format


I have a Canon PowerShot G3 camera.  I have taken some .CRW raw files
with
it and wish to be able to batch-convert them to .TIFFs (or other
formats)
using ImageMagick.  I have installed Dave Coffin's dcraw.  When I try to
convert these files I end up with very dark images.  The dcraw homepage
says
that you shoul write to 24-bit files unless you are going to use
Photoshop
etc to manipulate the images.  I see that you can use dcraw with the -2
switch, but that does not produce a .TIFF.

How can I convert .CRWs to 24-bit .TIFFs (or other formats) using the
ImageMagick convert utility?

Thanks in advance,

Robert Schmidli.



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