Get points from a figure

2011 8 月 1
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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?

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Oleg Komarov
Oleg Komarov 2011 年 8 月 1 日

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doc ginput

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Lizan
Lizan 2011 年 8 月 1 日
Is it possible for the user to zoom the image before he chooses his point?
Oleg Komarov
Oleg Komarov 2011 年 8 月 1 日
Of course.
Lizan
Lizan 2011 年 8 月 1 日
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
Oleg Komarov 2011 年 8 月 1 日
Clicking on the magnifiyng glass.
Resolution of image is bigger than screen resolution so it zoomed out.
Lizan
Lizan 2011 年 8 月 1 日
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
Oleg Komarov 2011 年 8 月 1 日
Can you upload your image on tinypic (or other) and post the code you're using?

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