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[BV] Finished exercises 1 through 4 on assignment 9

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Signed-off-by: Jim Martens <github@2martens.de>
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Jim Martens
2016-12-20 11:40:47 +01:00
parent 06d4b4ea2f
commit 49249bf02f
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% 4.
coins = imread('coins.png');
edge_01 = edge(coins, 'Canny', 0.1);
edge_02 = edge(coins, 'Canny', 0.2);
edge_05 = edge(coins, 'Canny', 0.5);
edge_075 = edge(coins, 'Canny', 0.75);
edge_08 = edge(coins, 'Canny', 0.8);
subplot(1, 5, 1);
imshow(edge_01);
subplot(1, 5, 2);
imshow(edge_02);
subplot(1, 5, 3);
imshow(edge_05);
subplot(1, 5, 4);
imshow(edge_075);
subplot(1, 5, 5);
imshow(edge_08);
% With the threshold 0.5 only the outer edges of the
% coins are still detected. With higher thresholds some
% coins disappear completely while 0.1 shows almost every
% line - including those on the coins.
% 5.