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overlaying specific points on an imported image

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Thishan Dharshana Karandana Gamalathge
评论： Walter Roberson 2022-7-5
I use the imread command to import a .jpg image which has some data shown (suppose it is a part of a global map with locations of fires shown). Now I have to overlay another data set which are based on longitude and latitudes (suppose a scatter plot). How can do that?

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Walter Roberson
Walter Roberson 2018-6-27
编辑：Walter Roberson 2018-6-28
img = imread('peppers.png');
image(img); %display image
hold on
scatter([23; 118; 209], [74; 88; 133], 'r*'); %overlay some points
hold off
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Abhilash
Abhilash 2022-7-5
While I am trying to plot a 2D surf() plot on a image, some of the data is not showing up on the map. Can someone help?
It comes up like this...
but the surf plot is supposed to be like this...
Thanks, Abhilash
Walter Roberson
Walter Roberson 2022-7-5
please show your code for creating the underlay and the surf and any xlim ylim or alpha data manipulation

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