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1 | % By Philip Torr 2002
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2 | % copyright Microsoft Corp.
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3 |
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4 | %a function to display the images matches
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5 | %matches, figure, display_numbers
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6 | function f1 = torr_display_matches(matches,display_numbers,f1)
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7 |
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8 |
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9 |
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10 | if nargin < 2
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11 | display_numbers = 0;
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12 | end
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13 |
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14 | if nargin < 3
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15 | m1 = max(max(matches));
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16 | m2 = min(min(matches));
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17 | m2 = -m2;
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18 | g = max(m1,m2);
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19 | f1 = figure
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20 | axis([-g g -g g])
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21 | else
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22 | figure(f1)
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23 | hold on
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24 | end
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25 |
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26 | x1 = matches(:,1);
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27 | y1 = matches(:,2);
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28 | x2 = matches(:,3);
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29 | y2 = matches(:,4);
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30 |
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31 | u1 = x2 - x1;
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32 | v1 = y2 - y1;
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33 |
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34 |
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35 |
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36 | plot (matches(:,1), matches(:,2),'r+');
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37 | hold on
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38 | plot (matches(:,3), matches(:,4),'r+');
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39 | if display_numbers
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40 | mat_index1 = 1:length(matches);
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41 | mat_index1 = mat_index1';
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42 | mat_index = num2str(mat_index1);
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43 | text(matches(:,1), matches(:,2),mat_index)
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44 | end
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45 |
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46 | quiver(x1, y1, u1, v1, 0)
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47 | hold off
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