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Detecting Cold Area in My Thermal Image

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Tasneem Al-Tmimi
Tasneem Al-Tmimi 2017-11-1
评论： Tasneem Al-Tmimi 2017-11-1
Hello there, I have the image attached. It was taken with FLIR E5 I need to extract the blue area only for the purpose of detecting the defects. I have tried several ways but they are all not working with me unfortunately :(
Can any one help me here ??

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回答（1 个）

KSSV
KSSV 2017-11-1
I = imread('FLIR0072.jpg') ;
I1 = rgb2gray(I) ;
[y,x] = find(I1<=15) ;
imshow(I)
hold on
plot(x,y,'.r')

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