imread (repost)

[Thomas L. Scofield]

On Aug 5, 2008, at 4:53 PM, Søren Hauberg wrote:

> tir, 05 08 2008 kl. 22:50 +0200, skrev Søren Hauberg:
>> tir, 05 08 2008 kl. 10:35 -0400, skrev Thomas L. Scofield:
>>> That's not the kind of modification I was suggesting for imshow.  I
>>> was suggesting this much simpler change (pseudocode):
>>>
>>>
>>>   if (length (size (image)) == 3 && size (image, 3) == 4)
>>>     show image(:, :, 1:3)
>>>   else
>>>     show image
>>>   endif
>>
>> I can only see the point of this behaviour if 'imread' actually  
>> returns
>> NxMx3 arrays.
>
> Aaarghh, I of course ment to write MxNx4 here...
>


That brings us back around to my original post.  I have examples of  
png files for which

   im = imread ("file.png");
   size (im, 3)

produces the output 4.  The command

   imshow (im(:, :, 1:3))

is a perfectly nice color image.

Thomas L. Scofield
--------------------------------------------------------
Associate Professor
Department of Mathematics and Statistics
Calvin College
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