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find the coordinates of an image

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RAMESH MUNIRATHINAM
RAMESH MUNIRATHINAM 2014-12-20
编辑： Mohammed Qusay 2017-3-7
how to get the xy coordinates of palm from the image
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RAMESH MUNIRATHINAM
RAMESH MUNIRATHINAM 2014-12-20
thank you, consider only the right image, i want to get the x-y coordinates of entire structure of palm alone, i know that if we have the coordinates we can get the image, but i have image and i want to know the coordinates is it possible?
Mohammed Qusay
Mohammed Qusay 2017-3-7
编辑：Mohammed Qusay 2017-3-7
@John ... i want to the The bottom-left-most pixel of the palm, The bottom-right-most pixel of the palm,The top-left-most and the top-right-most of the binary image how to get it ?

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Geoff Hayes
Geoff Hayes 2014-12-20
Ramesh - if the right-hand image is a binary image of 0's and 1's, then can't you get the rows and columns (y and x coordinates respectively) using the following
[rows,cols] = find(binaryImg==1);
where binaryImg is your binary image and 1 corresponds to the white pixels?
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Image Analyst
Image Analyst 2014-12-20
If, by chance, you want just the outline of the palm, you can use
boundaries = bwboundaries(binaryImage);
Or (not as efficiently)
[rows, columns] = find(bwperim(binaryImage));
Geoff's code can skip the unnecessary step of comparing every pixel in the entire image to 1 by simply just doing:
[rows,cols] = find(binaryImg);
RAMESH MUNIRATHINAM
RAMESH MUNIRATHINAM 2014-12-20
@image analyst
thank you will inform you after trying it

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