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[BV] Übung 3 Bearbeitung hinzugefügt

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Signed-off-by: Jim Martens <github@2martens.de>
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Jim Martens
2016-11-04 13:34:03 +01:00
parent e2912f00b4
commit fdba6da5f7
1 changed files with 42 additions and 0 deletions
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% histogram distances
rice = imread('rice.png');
cam = imread('cameraman.tif');
rice_sp = imnoise(rice, 'salt & pepper', 0.02);
rice_g = imnoise(rice, 'gaussian');
[h1,] = imhist(rice);
[h2,] = imhist(cam);
[h3,] = imhist(rice_sp);
[h4,] = imhist(rice_g);
dist_rice_camera = pdist2(h1', h2');
dist_rice_rice_sp = pdist2(h1', h3');
dist_rice_rice_g = pdist2(h1', h4');
distman_rice_camera = pdist2(h1', h2', 'cityblock');
distman_rice_rice_sp = pdist2(h1', h3', 'cityblock');
distman_rice_rice_g = pdist2(h1', h4', 'cityblock');
% colour spaces
peppers = imread('peppers.png');
peppers_gray = rgb2gray(peppers);
peppers_hsv = rgb2hsv(peppers);
peppers_lab = rgb2lab(peppers);
%figure (1), imhist(peppers(:, :, 1));
%figure (2), imhist(peppers(:, :, 2));
%figure (3), imhist(peppers(:, :, 3));
%figure (4), imshow(peppers_hsv);
%figure (5), imshow(peppers_lab);
%figure (6), imshow(peppers);
% binary images
coins = imread('coins.png');
coins_bw = coins;
for i = 1 : numel(coins_bw)
if coins_bw(i) < 90
coins_bw(i) = 0;
else
coins_bw(i) = 1;
end
end
coins_bw_l = logical(coins_bw);
level = graythresh(coins);
coins_bw_mat = imbinarize(coins, level);
figure (1), imhist(coins);
figure (2), imshow(coins_bw_l);
figure (3), imshow(coins_bw_mat);