[Octave-bug-tracker] [bug #56571] Images bigger than around 50M pixels in size do not display with imshow

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?56571>

                 Summary: Images bigger than around 50M pixels in size do not
display with imshow
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Mon 01 Jul 2019 03:07:23 PM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Incorrect Result
                  Status: None
             Assigned to: None
         Originator Name: Mike Wilsher
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 5.1.0
        Operating System: Microsoft Windows

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Details:

There was an original bug on this bug #48764 which now works in the current
version. But with a bigger image you still get a blank figure, image not
displayed and no error messages.

Octave 5.1.0 and image 2.10.0 package

It seems to be the x,y pixel size that is an issue it is not affected by mono
or rgb images.

In its simplest form
img_data = uint8(randn(6000, 8400)*255);
figure(); imshow(img_data);

Just displays a blank figure, although the pixel position display is showing
correctly or bigger in x or y (See fail image attached)

but 
img_data = uint8(randn(6000, 8399)*255);
or
img_data = uint8(randn(8399, 6000)*255);
or smaller work fine.
(see pass image attached)

I don't think it makes a difference but it is on Windows 10 Pro 64bit i7 with
16GB memory latest download of everything (see splash screen attached)

Any insight very much appreciated





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File Attachments:


-------------------------------------------------------
Date: Mon 01 Jul 2019 03:07:23 PM UTC  Name: fail.jpg  Size: 166KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=47152>
-------------------------------------------------------
Date: Mon 01 Jul 2019 03:07:23 PM UTC  Name: pass.jpg  Size: 283KiB   By: None

<http://savannah.gnu.org/bugs/download.php?file_id=47153>
-------------------------------------------------------
Date: Mon 01 Jul 2019 03:07:23 PM UTC  Name: splash.jpg  Size: 95KiB   By:
None

<http://savannah.gnu.org/bugs/download.php?file_id=47154>

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