imwrite is not working

[Andy Chee]

Saswata Mandal wrote:
> 
> Bug report for Octave 3.0.3 configured for i686-pc-msdosmsvc
> 
> Description:
> -----------
> 
> x = imread('image.png');
> imwrite('abc.png',x); --> fails with following message
> 
> warning: warn_empty_list_elements is no longer a built-in variable; please
> read
> the NEWS file or type `news' for details
> warning: is_list is obsolete and will be removed from a future version of
> Octave
> ; please use islist instead
> error: transpose not defined for N-d objects
> error: evaluating postfix operator `'' near line 273, column 10
> error: evaluating assignment expression near line 273, column 8
> error: evaluating if command near line 272, column 1
> warning: warn_empty_list_elements is no longer a built-in variable; please
> read
> the NEWS file or type `news' for details
> error: called from `imwrite' in file `C:\Program Files
> (x86)\Octave\share\octave
> \packages\image-1.0.8\imwrite.m'
> 

I am having the same problem with the same result on my system running
Octave 3.0.3 under Linux

The commands I used to create the error which are basically the same, were:

im = imread('original.jpg');
imwrite('copy.jpg',im);

Note however if original.jpg is a greyscale image these commands work as I'd
expect



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