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What is the meaning of any_image(:,w:-1:1) in MATLAB

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Mustafa Uysal
Mustafa Uysal 2019-11-12
评论： Stephen23 2019-11-12
I have seen this line in a program, but couldn't understand what it means. As far as i know, the first part means 'for all rows' but i didn't understand
w:-1:1
this part.

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Marcel Kreuzberg
Marcel Kreuzberg 2019-11-12
w:-1:1 start with w step -1 till 1
6:-1:1 -> 6 5 4 3 2 1

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