<div>Hi, ITK experts -</div> <div> </div> <div> I have a simple question, just want to get some advice from -</div> <div> </div> <div> I have an image, and I want to calculate the Ostu threshold only using the positive pixels in the image. </div> <div> </div> <div> What is the best way to proceed?</div> <div> </div> <div> Thanks a lot in advance.</div> <div> </div> <div>Suyang</div> <div> </div><p>