It's worth remembering that printing is almost universally still 8bit.  
However, it is clearly very important that any current image package  
should allow opening and manipulation of greater depth images. My own  
camera is a long obsolete Fuji S20 but it produces 12bit images. As a  
result all my post processing is done in ImageMagick and the GIMP is only  
of use in opening the final jpg fro cropping and printing.

But, 32bit and 64bit colour is effectively meaningless. It would certainly  
be useful for an image package to work internally in 32bit, and maybe even  
64, so that the results of, for example, multiple layers with transparancy  
can be calculated without errors showing, but for both input (ie, taking  
the original picture) and output both 32 and 64 bit is a waste of time and  
probably money too.


On Wed, 16 Jan 2008 10:25:39 -0000, 7willows <[EMAIL PROTECTED]>  

> Hi,
> As an in frequent GIMP user since v1.2, GIMP was used just cropping and
> resizing images. One of the computer magazines I picked up in a locale
> store had published an article on GIMP showing how to selectively
> colourise based on Eric R. Jeschke tutorial, which I tried.
> In another magazine around the same time, a challenge was presented (no
> prize) to manipulate a series of images and I thought I would use GIMP
> to improve my knowledge of GIMP. While I suceeded in completing the
> challenge using GIMP it was tinged with disappointment that some of the
> images where downgraded from 16bit to 8bit images.
> After having a trawl through the GIMP Development site and GIMPcon 2006
> and the GIMP vision which I think is very good. As a very inexperienced
> GIMP user, the fact that GIMP can not handle a 16 or 32bit monochrome
> image immediately is a reason not to invest any more time in GIMP.  The
> inexperienced user wants to load an image and generally crop and resize,
> then comes combining images. Eventually, more complicated manipulation
> is attempted unless a specific objective is required. Can I ask when 16
> and 32 bit monochome images can be loaded?
> As CPUs are now primarily 64bit (I am running Solaris 10 x86 as a 64bit
> OS) could the design of GIMP be adjusted so that maximum image bit depth
> becomes user selectable 32 or 64bit? As a lapsed programmer (only using
> sh and no compiled language for over 10 years) I fully appreciate it is
> not a simple fix.

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