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How can I implement auto threshold into my code rather than defining the threshold for each image?

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Hi everyone. I would like to implement auto-thresholding into my Matlab code as I don't want to define manually for each image. For example, I define my threshold like; binaryImage = myinput <0.7; Is there any way to find the best threshold automatically and use that threshold for images I have.
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Ameer Hamza
Ameer Hamza il 22 Mag 2018
Modificato: Ameer Hamza il 22 Mag 2018
It will be possible most probably. But first, you need to define best threshold. How do you measure whether a specific threshold is best or not?
engineer
engineer il 22 Mag 2018
I find the best threshold by trial and error. The best threshold for me is that the background pixel is fully black (0) and the object's pixel is fully white (0).

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Ameer Hamza
Ameer Hamza il 22 Mag 2018
See adaptthresh(). This will estimate a threshold value without the need to manually specifying it.
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