How to centering an Silhouette image

2 vues (au cours des 30 derniers jours)
Kong
Kong le 11 Mar 2020
Commenté : Kong le 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 );

Réponse acceptée

Mahesh Taparia
Mahesh Taparia le 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 commentaires
Mahesh Taparia
Mahesh Taparia le 18 Mar 2020
Modifié(e) : Mahesh Taparia le 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 le 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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