Paste new image to random locations

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NC 2018-6-26
回答： KSSV 2018-6-26
I want to read a set of images in a folder and paste a cropped part of another new image to random locations of each image. I used imfuse() function, but the cropped image only places at the upper left corner not in random locations.n How to do it for random locations?

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KSSV
KSSV 2018-6-26
I = imread('peppers.png') ;
[J,rect] = imcrop(I) ;
[nx,ny,~] = size(I) ;
[nx1,ny1,~] = size(J) ;
%%place at random location
posx = randsample(nx1:nx-nx1,1) ;
posy = randsample(ny1:ny-ny1,1) ;
%place the cropped part
I(posx:posx+nx1-1,posy:posy+ny1-1,:) = J ;
imshow(I) ;

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