Scaling an image then overlaying data on top of it

Hello,

I am attempting to plot some xy data over an image (see attached image). The data I would like to plot (see attached excel file) is a subset of data that contains values of x ranging from (199 to 223), and values of y ranging from (-321 to -298). I also know the xy locations of each of the 4 corners of my image. They would be...

Top Left Corner(x,y) = (4.6,-197.5)

Top Right Corner(x,y) = (397.0,-197.5)

Bottom Left Corner(x,y) = (4.6,-412.9)

Bottom Right Corner(x,y) = (397.0,-412.9)

Is there an easy way to scale the image based on the above corner points so that when I plot the data it is all contained within the boundaries of the image?

Thanks in advance!

[Josh Tome]

CORRECTION... When I said "I know the xy locations of the corners of my image", I should have said that those are the coordinates I would like the corners of the image to be defined by.

Answer 1

[Matt J]

[X,Y]=readvars('Center of Pressure Data.xlsx');
Y=-Y;

h=imshow(flipud(imread('Overhead View of Human.jpg')),[]);
h.XData=[4.6,397]; xlim(h.XData);
h.YData=[197.5,412.9]; ylim(h.YData);

hold on; scatter(X,Y); hold off

[Josh Tome]

Awesome! Thanks for the speedy reply.

[Matt J]

You're very welcome, but if you are satisfied with the answer, please Accept-click it.