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How to show image with constant value?

From: zetab
Subject: How to show image with constant value?
Date: Wed, 26 Dec 2007 23:45:34 -0800 (PST)

I need to show some computation result of image processing, but when the
resulting image has constant value in all pixel, the imshow() function seems
to not work for that. A "division by zero" warning was displayed and the
gnuplot window show an black image.

The following code will reproduce what I said:


I replaced the imshow() by image(), and the result was the same.
I use octave 2.9.19 on WinXP.

Is there any method can show such an image in octave?
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