I want a c++ Code to read every pixel from an image file. and i want to save the pixels like: r[] g[] b[]
does somebody know how to do this?
+2
A:
The answer depends on the format of the image file. Is it a format which contains raw RGB data (such as uncompressed TGA)? Is it a YUV image? Is it a compressed image such as JPEG or PNG?
There are already plenty of C++ libraries out there which can read a wide variety of image file formats, and then provide the pixel-level access you require. Take a look at Adobe's GIL, or CImg for example.
Gareth Stockwell
2010-04-29 07:55:50
-1: not an answer - should be a comment.
Paul R
2010-04-29 07:56:40
@Paul R: Ask a silly question, get a silly answer. +1
Williham Totland
2010-04-29 07:58:49
@Paul, added references to some libraries which can do what the OP requires - I think this now qualifies as an answer.
Gareth Stockwell
2010-04-29 07:59:09
@gareth: OK, -1 removed.
Paul R
2010-04-29 08:01:20
A:
There are many freely available libraries for reading different image file formats. Since you're using C++ you might want to look at Adobe's Generic Image Library (GIL) or even OpenCV.
Paul R
2010-04-29 07:58:08
A:
Two libraries that I've used that jump to mind are:
These libraries can handle a wide variety of image formats, depending on what you need.
Greg Hewgill
2010-04-29 07:59:17
+1
A:
This will sort you out, very easy to use and 'low level' image library: http://easybmp.sourceforge.net/
zaf
2010-04-29 08:47:45