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Subject: [Boost-users] [GIL] wrapper for QImage
From: Tomas Van Verrewegen (tomasvanverrewegen_at_[hidden])
Date: 2009-02-21 14:54:54


Hi,

I'm planning to write an image manipulation application using Boost.GIL as a
backbone and Qt for the interface. Now I was thinking it might be a good idea
to write a wrapper around QImage to give GIL direct access to the pixels of a
QImage.

I've been looking at the code and as far as I can tell I have 2 options:
(1) create a new GIL image type that wraps the QImage
(2) create a "qimage_pixel_iterator" and use "... interleaved_view(...)"

Now my question(s):
- Would (2) be enough, or is it necessary to also create (1)?
- "QRgb" (Qt's pixel type) is a typedef for "unsigned int", so specialising
eg. "template<class Pixel> struct gil::channel_type" for "unsigned int" seems
somewhat suboptimal (is it an 8bit RGBA pixel or a 32bit Gray pixel?). Some
sort of proxy class might be appropriate? Maybe a gil::pixel<...> subclass?


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