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25 lines
610 B
Matlab
25 lines
610 B
Matlab
% 4.
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coins = imread('coins.png');
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edge_01 = edge(coins, 'Canny', 0.1);
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edge_02 = edge(coins, 'Canny', 0.2);
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edge_05 = edge(coins, 'Canny', 0.5);
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edge_075 = edge(coins, 'Canny', 0.75);
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edge_08 = edge(coins, 'Canny', 0.8);
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subplot(1, 5, 1);
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imshow(edge_01);
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subplot(1, 5, 2);
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imshow(edge_02);
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subplot(1, 5, 3);
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imshow(edge_05);
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subplot(1, 5, 4);
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imshow(edge_075);
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subplot(1, 5, 5);
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imshow(edge_08);
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% With the threshold 0.5 only the outer edges of the
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% coins are still detected. With higher thresholds some
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% coins disappear completely while 0.1 shows almost every
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% line - including those on the coins.
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% 5.
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