How to Threshold Crop an Image for analysis

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Brian Peoples
Brian Peoples am 24 Jun. 2020
Kommentiert: Brian Peoples am 26 Jun. 2020
Basically all I want to do is perform a lighting analysis on the hair itself in the border i set for it (blue tape). Is there a way I can crop this using some sort of color threshhold? the picture setup should be consistant everytime (i dont want to have to bother w imcrop(). Here is the image:

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darova
darova am 25 Jun. 2020
Maybe simple binarization?
I0 = imread('image.jpeg');
I1 = I0(:,:,3);
I2 = im2bw(I1,graythresh(I1)-0.1);
imshowpair(I0,I2,'montage')
  5 Kommentare
Brian Peoples
Brian Peoples am 26 Jun. 2020
I understand this would probably involve reshaping the matrix to a certain extent
Brian Peoples
Brian Peoples am 26 Jun. 2020
nvm i figured it out

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