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Re: How to save matrix as image? [SOLVED]


From: Terry Duell
Subject: Re: How to save matrix as image? [SOLVED]
Date: Mon, 12 Sep 2011 14:19:25 +1000
User-agent: Opera Mail/11.51 (Linux)

Hullo All,

On Mon, 12 Sep 2011 11:06:42 +1000, Terry Duell <address@hidden> wrote:

[snip]
I have a matrix (D1, 1209x1559x2) which I want to save out as a greyscale image using,
  'imwrite(mat2gray(D1),'results/D1_concatderiv.jpg');'
which gives me the error;
'error: mat2gray: mx_el_lt: nonconformant arguments (op1 is 1209x1559x2, op2 is 1x1x2)'
I thought I had done this on other occasions, but obviously not.
What am I missing?

As is often the case, the solution becomes apparent immediately after you post a question :-)
One has to reference the layer/channel...
imwrite(mat2gray(D1(:,:,1)),'results/D1_concatderiv.jpg

Cheers,
--
Regards,
Terry Duell


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