superimpose points on image

2013 10 22
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更新时间：2013 10 22
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I have 1165x847 pixels geological map,I want to plot 15 points on that image.How to do that?How to write coordinates?

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David Legland
David Legland 2013-10-22

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Hi Milenko,
One solution is to display the image (using etiher imshow, imagesc...), call "hold on", then plot the points at the specified (x,y) coordinates. If your points are in geographical coordinates, you need to convert their coordinates into (i,j) image index. An alternative is to specify the 'xdata' and 'ydata' when you call imshow, then you axis is directly in the geographical unit.
Hope this helps, David

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