How to find the threshold value for this image?
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I want to find the threshold value for this image..... but i don not know how..
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149892/image.jpeg)
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Answers (2)
Salaheddin Hosseinzadeh
on 7 May 2015
Edited: Salaheddin Hosseinzadeh
on 7 May 2015
Hey Nurul,
I am not sure what exactly you want to threshold, so here is a general solution.
Step1 : Convert this to grayscale image, either using rgb2gray() or other appropriate functions.
Step2 : Examine the histogram of the image using imhist(), and identify the threshold value.
Step3 : Just threshold it!
I hope it helps ;)
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Image Analyst
on 7 May 2015
Why not use my interactive thresholding app. I just uploaded an updated version today: http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862
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