How to centering an Silhouette image

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Kong
Kong on 11 Mar 2020
Commented: Kong on 18 Mar 2020
Hello.
I wanna centering an image (image 1 to image 2)
image 1 image 2
I got the image 1 from this code.
clear all
close all
%// read the video:
reader = VideoReader('lena_side.avi');
vid = {};
while hasFrame(reader)
vid{end+1} = im2single(readFrame(reader));
end
%// simple background estimation using mean:
bg = mean( cat(4, vid{:}), 4);
%// estimate foreground as deviation from estimated background:
fIdx = 40; %// do it for frame 43
fg1 = sum( abs( vid{fIdx} - bg ), 3 ) > 0.25;
figure;
subplot(141); imshow( bg );
subplot(142); imshow( fg1 );

Accepted Answer

Mahesh Taparia
Mahesh Taparia on 17 Mar 2020
Hi
The image is gray scale with one object and the object is present in the right half of the image, so the usual approch could be to find the centroid of the object and shift the centroid of the object to the center of new image. New image should be the image consisting of zeros with same size of previous image.
  5 Comments
Mahesh Taparia
Mahesh Taparia on 18 Mar 2020
Edited: Mahesh Taparia on 18 Mar 2020
Hi
You can use the regionprops function on each frame, i.e in the for loop and do the necessary computation there. Save the resultant frame inside the loop.
Kong
Kong on 18 Mar 2020
Thank you so much.
I found the solution
However, I don't know how to use this in folders of images.

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