Re: Image manipulation and Scaling

[Gorav <gorav s mst-india com>]

Thanks for reply.


Can you please elaborate more on Converting More than 8bit image to 8 
bit image.

And, apart from GtkImageView, is there no other way of image scaling?


Thanks
Gorav

On 02/03/2010 12:02 PM, Dov Grobgeld wrote:
> Even if your image has more than eight bits you can always convert it to
> 8-bit according to a user setting defining the grey level max and min to be
> used for the convertion (known as window and level in the medical image
> community). That's exactly how I do it in my image viewer giv. The image is
> held in a GivImage that is overloaded for various bit integer or floating
> widths and is then converted according to the user level setting before
> being displayed.
>
> Btw, if you would like to have interactive zooming of the image being
> displayed you may want to consider using my GtkImageViewer instead of
> GtkImage. (There is also the GtkImageView by Björn Lindquist with similar
> and different functionality.)
>
> See: http://giv.sourceforge.net/gtk-image-viewer/
>
> Regards,
> Dov
>
> On Wed, Feb 3, 2010 at 04:19, Lars Wirzenius<liw liw fi>  wrote:
>
>    
> > On Tue, 2010-02-02 at 17:25 +0530, Gorav wrote:
> >      
> > > Hi
> > >
> > >
> > > I need to do some image manipulation using GTK, and I want to view some
> > > proprietary image formats. So, I can prepare RGB data. But, which widget
> > > and API to be use to draw pixels on screen.
> > >
> > >
> > > I used GtkImage using Pixbuf, but it supports only 8 bits per sample.
> > >        
> > Have you looked at GdkPixbuf for holding the image data? You may need to
> > write converter plugins to load and store images from files for your
> > proprietary formats, but after that, all the in-memory stuff should work
> > fine.
> >
> >
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> >
> >      
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