Hi, someone can help me how to do "translation" in image ?

Hi

i need to do "translation" in image, but i don't found how to do that.

i need to take selfie image and then to center my face in the photo.

like this:

TNX!!

Answer 1

[Walter Roberson]

I = imread('cameraman.tif');
imshow(I)
BW = imbinarize(I);
L = bwareafilt(~BW, 1);
props = regionprops(L, 'Centroid');
CR = props.Centroid(2);
CC = props.Centroid(1);
hold on
plot(CC, CR, '+r', 'markersize', 20);
hold off

[R, C, P] = size(I);
rows_to_shift_down = floor(R/2 - CR);
cols_to_shift_right = floor(C/2 - CC);
J = circshift(I, [rows_to_shift_down, cols_to_shift_right]);
imshow(J)

%cross-check only, centroid should now be at center
BW = imbinarize(J);
L = bwareafilt(~BW, 1);
props = regionprops(L, 'Centroid');
CR = props.Centroid(2);
CC = props.Centroid(1);
hold on
plot(CC, CR, '+r', 'markersize', 20);
hold off

Yup, looks okay.

[yovel atia]

It works :)

Thank you !!!

Answer 2

[Image Analyst]

Description

example

B = imtranslate(A,translation) translates image A by the 2-D or 3-D translation vector specified in translation.

If A has more than two dimensions and translation is a 2-element vector, then imtranslate applies the 2-D translation to each plane of A.