How to remove a part of image?

Question

quest 2015-4-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/200936-how-to-remove-a-part-of-image

编辑： Ananthu Jayan 2018-1-8

Hello,

I want to work with an image, but the problem is - how to remove a part of it? Is there any way to remove (or replace with black color) a rectangular place from image? I tried imcrop a rectangle, but I don't know how to use the rest of image (I only know how to edit the rectangle).

Thanks a lot.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Thomas Koelen 2015-4-13

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/200936-how-to-remove-a-part-of-image#answer_175017

编辑：Thomas Koelen 2015-4-13

在 MATLAB Online 中打开

testimage=imread('pout.tif');
imshow(testimage)
H=imrect(gca);
pos=wait(H);
close all
testimage(pos(1,2):pos(1,2)+pos(1,4),pos(1,1):pos(1,1)+pos(1,3))=0;
imshow(testimage);

run this, it will let you create a draggable square, select the part of the image that you want to make black and then double click on the square, it will save your updated image to testimage. you can also set the 0 to something like mean2(testimage) so it's not completely black.