Get points from a figure

Hi,

I would like to have a function which an image appear then the user can choose which point it was to use on an image. When the user clicks somewhere on the image, its (x,y) coordinate is stored to two variables and some further calculations can be done with this. Is this possible with MATLAB and is there a existing function for this?

Answer 1

[Oleg Komarov]

doc ginput

[Lizan]

Is it possible for the user to zoom the image before he chooses his point?

[Oleg Komarov]

Of course.

[Lizan]

How?

Also I am getting this message:

Warning: Image is too big to fit on screen; displaying at 50%

> In imuitools/private/initSize at 73

In imshow at 262

What is this about?

[Oleg Komarov]

Clicking on the magnifiyng glass.

Resolution of image is bigger than screen resolution so it zoomed out.

[Lizan]

The magnifying glass button is disabled. Maybe because of this zoom message. Can you remove this message and activate the zoom button?

Many thanks!

[Oleg Komarov]

Can you upload your image on tinypic (or other) and post the code you're using?