How can i find the position of a subimage in larger image ?

Question

Mariem Harmassi 2013-2-13

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/63273-how-can-i-find-the-position-of-a-subimage-in-larger-image

回答： Image Analyst 2015-11-7

Hello I have a sub-image X ,which is a subimage of Y .How can find the position of this subiamge in the image Y ? Can anyone help me

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

Thorsten 2013-2-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/63273-how-can-i-find-the-position-of-a-subimage-in-larger-image#answer_74888

在 MATLAB Online 中打开

 F = im2double(imread('cameraman.tif'));
 I = rand(512);
 I([1:size(F,1)] + 30, [1:size(F,2)] + 80) = F;
 disp('Search target using imfilter, this may take some time...')
 If = imfilter(I, F);
 [maxval ind] = max(If(:));
 [y x] = ind2sub(size(If), ind);
 imshow(I)
 hold on
 plot(x, y, 'rx')