Why image rotates after adding to a figure- how to prevent it?

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BN
BN 2020-4-13
评论： Star Strider 2020-4-13
Hey all, I have a problem, I used this code to add my .png image to the current figure (map of the country),
gs = geoshow(A, cmap, R);
gs.CData(repmat(mask,1,1,3)) = 255;
axis equal
box on
hold on
%%% add png file to the current figure
[img, ~, tr] = imread('filename1.png');
im = image('CData',img,'XData',[50 51],'YData',[35 36]);
im.AlphaData = tr;
hold off
The picture adds successfully (colorful circle):
But I see it is rotated. in fact, my original .png is:
But after adding it to figure it seems to it has rotated by 180 degrees. I tried to rotate it before hold off part using imrotate function but it failed.
How can fix this problem?
Thanks

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采纳的回答

Star Strider
Star Strider 2020-4-13
Using flipud worked when I tried it:
im = image('CData',flipud(img),'XData',[50 51],'YData',[35 36]);
I do not have the Mapping Toolbox so I could not run the entire code.
.

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