insertshape auto find the coordinate of the object

Hi, may i know how to insertshape auto find the coordinate of the object that in black pixel in the image?

Answer 1

[Walter Roberson]

info = regionprops(~TheImage, 'Centroid');
coords = vertcat(info.Centroid);
x_coords = coords(:,1);
y_coords = coords(:,2);

but remember that x corresponds to columns and y corresponds to rows.

[MUHAMMAD NAZMI ZAINAL AZALI]

This is my coding, so this part will put at where?

clear all

% read original image
a = imread('pcb2.jpg');
imshow(a)

% read test image
b = imread('pcb2_openckt.jpg');
imshow(b)

% subtraction
c = imabsdiff(a,b)
imshow(c)


d = imcomplement(c)
imshow(d)

% to find the coordinate of the object from d
f = insertShape(a,'circle',[33 20, 20],'LineWidth',5);


subplot(3,3,1), imshow(a), title('Original')
subplot(3,3,2), imshow(b), title('Test')
subplot(3,3,3), imshow(c), title('Difference')
subplot(3,3,4), imshow(d), title('Inverted Difference')
subplot(3,3,5), imshow(f), title('Labeled')

[Image Analyst]

isertShape does not "find" regions in an image. Finding regions is what regionprops() does.