Is there is a way I can select the minimum value from a matrix, and replace all numbers surrounding this minimum value (3 cells) by a specific number
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I want to select this minimum value cell, and anything within a radius of ‘less than or equal to’ three cells to be replaced with a specific number such as 99 (including the selected minimum cell).
I have uploaded a pdf of what i am trying to accomplish. Sorry for any inconvenience and thank you.
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dpb
am 9 Nov. 2013
Bearbeitet: Andrei Bobrov
am 10 Nov. 2013
[~,imin]=min(x(:)); % location of min (linear
[im,jm]=ind2sub(size(x),imin); % convert to subscripts
x(im-1:im+1,jm-1:jm+1)=99; % set a square around that location
6 Kommentare
dpb
am 11 Nov. 2013
You'll have to write logic to handle the condition; there's no automagic way that I can think of. Wrapping the bounds expressions inside min and max is one way can do that so that, for instance, the LHS x-bound becomes
max(im-1,1)
Similar logic w/ proper limits for the other directions should be obvious extension. The end keyword is invaluable in such instances for upper bound values, btw...
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