Crop the irrelevant part of the Image
조회 수: 7 (최근 30일)
이전 댓글 표시
I am new to Matlab. I want to crop the highlighted part of the gray image and remove the rest part. How to do that, kindly explain as well. Thanks.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/163503/image.jpeg)
댓글 수: 3
Image Analyst
2017년 5월 2일
You have not attached the original image. Not the cropped one, and not the one with the red box on it, but the original image. So, did you even try stdfilt()?
채택된 답변
Image Analyst
2017년 4월 28일
If you know the bounding rows and columns, you can do indexing
croppedImage = rgbImage(row1:row2, col1:col2, :);
or use imcrop():
croppedImage = imcrop(rgbImage, [leftCol, topRow, (rightCol-leftCol+1), (bottomRow-topRow+1)]);
댓글 수: 6
Image Analyst
2017년 4월 29일
Yes, but that was not the original question so I didn't answer that. You could use stdfilt() and threshold and find the bounding box. Search for braille here - I know I've done code for it before.
추가 답변 (2개)
Image Analyst
2017년 5월 2일
Zaheer, I'm sure by now you've tried to take my suggestion and use stdfilt() to automatically get the bounding box. You can look at how I did it and compare it to your own.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/175845/image.png)
댓글 수: 0
참고 항목
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!