How do I find the X and Y coordinates of a particular pixel in an image?

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NANDITA Joshi
NANDITA Joshi le 26 Fév 2014
Commenté : Rajiv Ghosh-Roy le 27 Fév 2014
I want to perform some transformations on the pixel coordinates.

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Rajiv Ghosh-Roy
Rajiv Ghosh-Roy le 26 Fév 2014
If you want to do it interactively (e.g. with a mouse), use the function ginput.
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NANDITA Joshi
NANDITA Joshi le 26 Fév 2014
I don't want to do it with a mouse. I need to use that value later in the program.
Rajiv Ghosh-Roy
Rajiv Ghosh-Roy le 27 Fév 2014
In that case, how would you determine which one the "particular pixel" is? Are the coordinates just the position within the image, or are there other coordinates you are trying to correlate to?

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