why getpts doesn't give the correct points?

I have the following image:

When I plot the points got by getpts, the image is flipped upside down:

My code is the following:

figure
imshow("carro.png")
[x,y] = getpts;
plot(x,y,'b*')

Answer 1

[Walter Roberson]

imshow() by default sets YDir reverse so that the "top" of the array (lowest row number) appears at the top of the screen (which would otherwise correspond to highest row number).

When you then plot the points without YDir reverse then they appear upside down.