superimpose points on image

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Milenko on 22 Oct 2013
Answered: David Legland on 22 Oct 2013
I have 1165x847 pixels geological map,I want to plot 15 points on that image.How to do that?How to write coordinates?

Accepted Answer

David Legland
David Legland on 22 Oct 2013
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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