Paste new image to random locations

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?

Answer 1

[KSSV]

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) ;