bugGNU Octave - Bugs: bug #48764, No output of imshow() for big...

 
 

bug #48764: No output of imshow() for big images

Submitter:  Felix <fefe>
Submitted:  Fri 12 Aug 2016 04:14:48 PM UTC
   
 
Category:  Plotting Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Works For Me Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * 4.0.0 Operating System:  * Microsoft Windows
Fixed Release:  None Planned Release:  None
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Fri 12 Aug 2016 11:02:49 PM UTC, comment #1: 

Try using a newer version of Octave such as 4.0.3.  This works for me with version 4.0.2 in a Windows XP virtual machine using the qt toolkit.

Rik <rik5>
Group administrator
Fri 12 Aug 2016 04:14:48 PM UTC, original submission:  

There will be NO grapic output if imshow is used for large images.


img_data = uint8(randn(3072, 4096)*255);
figure(); imshow(img_data)


If the range to display will be reduced, the selected image range will be shown as expected.


img_data = uint8(randn(3072, 4096)*255);
figure(); imshow(img_data(1:2050,1:4096))


The same for RGB images.

Felix <fefe>

 

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-08-12 rik5 StatusNone Works For Me
        Open/ClosedOpen Closed

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