How to translate image and pad border ?

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RuiQi
RuiQi 2016-6-24
编辑： Adam 2016-6-24
Hi I would like to use imtranslate but i want the output to not have black borders and be of same size as input. Like if my input is
1 2 3
4 5 6
7 8 9
and i translate 1 pixel to the right, then the output is
1 1 2
4 4 5
7 7 8

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回答（1 个）

Adam
Adam 2016-6-24
You could do this manually just as
mat = [ 1 2 3; 4 5 6; 7 8 9 ];
res = [ mat(:,1), mat(:,1:end-1) ];
  2 个评论
RuiQi
RuiQi 2016-6-24
Well I have thousands of images that I want to randomly translate to generate thousands more images. It would be nice if there is a function like in OpenCV that handle the padding for you so all I have to do is generate the function to randomly jitter the images.
Adam
Adam 2016-6-24
编辑：Adam 2016-6-24
Well, it depends what you mean by "randomly translate". I tend to write my own functions for most of the things I want to do based on the components available in Matlab. It is true that I then sometimes discover a Matlab builtin or toolbox function that does exactly the same thing though.

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