collect all same coins in each figure

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Tu Nguyen
Tu Nguyen 2022-4-13
回答： Image Analyst 2023-9-7
Dear all;
I want to collect all same value coins in each figure. For example, all 1 cent coin in 1 figure, all 5 cent coin in 1 figure. How can I do that?
Really appreciate for your help
clc;
close all;
clear;
I = imread("money.png");
Ig = rgb2gray(I);
imshow(Ig);
Ib = imbinarize(Ig,'global');
imshow(Ib);
se = strel('disk',2);
Ih = imerode(Ib,se);
Ih = Ib - Ih;
imshow (Ih);
If = imfill(Ih,'holes');
label = bwlabel(If);
max(max(label));
im1 = (label ==1);
figure;
imshow(im1)
for i = 1:max(max(label));
[row, col] = find(label ==i);
len = max(row)-min(row)+2;
breath = max(col)-min(col) +2;
target = uint8(zeros([len breath]));
sy = min(col) - 1;
sx = min(row) - 1;
for j = 1:size(row,1);
x = row(j,1) - sx;
y = col(j,1) - sy;
target(x,y) = I(row(j,1),col(j,1));
end
mytitle = strcat('Object Number:',num2str(j));
figure;
imshow(target);
end

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回答（1 个）

Image Analyst
Image Analyst 2023-9-7
This is just what my tutorial does. See my Image Segmentation Tutorial in my File Exchange:
Image Analyst's File Exchange
It's a generic, general purpose demo of how to threshold an image to find blobs, and then measure things about the blobs, and extract certain blobs based on their areas or diameters, like dimes or nickels only.

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在 Help Center 和 File Exchange 中查找有关 Convert Image Type 的更多信息

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R2021b

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