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Hello, I am a graduate student in south korea, and I had a question during the study using photoshop focus area selection tool.
Question is this,
I cannot find the principle or algorithm of Focus Area tool. I am working on a scientific paper, and I used this tool, but i cannot write without how it works.
So please let me know how it finds out wheather the photo is focused or not.
I'm not a programmer, but this tool seems to make determinations based on edge clarity, from what I've seen. Perhaps this article will help? https://helpx.adobe.com/photoshop/using/select-area-focus.html