imrect
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Hi. I want to be able to load a large tiff (say 1000 x 1000) and manually select a smaller ROI (e.g. 50x50) and display this new reduced image (but not by binning).
I have experimented with
imshow('c:\funny.bmp');
h = imrect;
pos = h.getPosition()
but after I create the rectangle and then move it, the coordinates do not change. I am not sure how to: 1 create an "onmove" call back to ouptut the coordinates 2: Then take these and create the smaller image from the larger on (and display it) Thanks Jason
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Accepted Answer
Image Analyst
on 1 Aug 2011
Why not consider rbbox()? There is a nice example in the help for it.
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More Answers (2)
Sean de Wolski
on 1 Aug 2011
Look at the first example in the
doc imrect
documentation file. A few small changes to the callback function and you'll be all set.
3 Comments
Sean de Wolski
on 1 Aug 2011
addNewPositionCallback(h,@(p)assignin('base','pos',p));
This line is what to do with the new position. Here I assigned it to the base workspace as 'pos'. You could assign it somewhere else, save it, display it, etc.
Asad Alam
on 22 Feb 2021
How can we identify fixed Region of interest in every image specific for pixel[120 370 ,240 340] it should be a fixed rectangular window?
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Asad Alam
on 23 Feb 2021
I have 10 images in a folder i have used imagedatatore to call all of them now first i have to use 1 image processed it and then loop back for the next image then processed(processing means i have to create a rectangular window on each of thr 10 images bacically each rectangular window will be the region of interest now i have to save this cropped rectangular image and then use this image for further process) it then loop back for thi i have used while loop
Basically i want tto know how can i use indexing like selecting one image crop it then do all other processing then save it and loop back
Image Analyst
on 23 Feb 2021
and then start your own question with your images attached. In the meantime see the FAQ:
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