Win32 imread and imwrite fixes

Paul Kienzel

I have managed to make the imread and imwrite M files.  I keep it such that 
it should still work with unix systems.

The pre-requisite is to set the isunix to false for win32 systems.

It was not working because octave uses the cygwin unix file tree system to 
access files and ImageMagick convert utility uses the native win32 file tree 
systems.

Also, i found that the following command adds a new line character at the 
end of the string
            fname= file_in_path(IMAGEPATH,filename);

Maybe this is for win32 systems alone.

Attached are the imread.m and imwrite.m files

Hope this helps.

Faisal Mooraby

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