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image command help?!

From: Feng Chi Wang
Subject: image command help?!
Date: Mon, 24 Jul 95 14:29:28 EDT

If I have a simple 3x3 matrix called x, shouldn't I be able to
get a grey scale image of it by simply doing a

    image (x)


Actually I have a 512x512 matrix, but I couldn't get the 3x3 to
plot. Either I get a Segmentation fault or 

warning: save: no such variable 'image.1627.img'
octtopnm: unable to open input file

Please help me.

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