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how its working bwlabel matlab function? how its giving a numbers as priority ?

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voxey
voxey on 24 Jan 2019
Edited: voxey on 7 Feb 2019
how its working bwlabel matlab function? how its giving a numbers as priority ?

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Image Analyst
Image Analyst on 24 Jan 2019
It scans down the image -- down rows in column 1, then move over to column 2 and go down the rows in column 2, then move over to column 3 and go down the rows in column 3, etc. Whenever it hits a "true" pixel, it does a region growing process to give all the pixels that same ID number (label), regardless of how far over to the right it goes.
So basically go over column by column seeing where the left edge of the blob is. If the blob touches that column, make the whole blob have 1 number. Then start scanning again and when you hit the next blob, assign that whole blob the next number (one more than the previous number).

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Image Analyst
Image Analyst on 5 Feb 2019
I don't know what that means.
If you're asking if the whole image is true,will it assign the same label number, then yes, it will assign the label 1 to the entire blob that takes up the entire image.
voxey
voxey on 7 Feb 2019
please check this bellow image? my question how to asign a same number on image using bwlabel, if first image 6 label 3rd image 5 label , first and second image labeling order was changed , it is not same upto n images? pleae check this bellow images?

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