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How can I find old point in old image before resampling?

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Hello I have an image and I did resampling on it
( NI = imresample([0.5,0.5],I,[1,1],'linear');)
can I find old pixel in first image from resampled image? in fact I want to know what was the pixel NI(1,1) in image I?

Risposte (1)

Image Analyst
Image Analyst il 25 Nov 2013
imresample is not in base MATLAB or the Image Processing Toolbox. It's a pretty good bet though that the (1,1) pixel has the same value in both images. Of course it is trivial to check that:
difference = abs(double(oldImage(1,1)) - double(newImage(1,1)))
It probably doesn't move.
  4 Commenti
bkshn
bkshn il 26 Nov 2013
Modificato: Image Analyst il 26 Nov 2013
and send email to its author , but he didn't answer. anyway thanks for your answer
Image Analyst
Image Analyst il 26 Nov 2013
Modificato: Image Analyst il 26 Nov 2013
Maybe you should use imresize() instead. Would that do what you need to do, or is there something special about imresample? Not from what I can see. It appears to be only for those unfortunate souls who do now have the Image Processing Toolbox.

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