Java and android is not the same as the effect of the same code,
My test result is Scalar parameters in Java is RGB value, not values of HSV, and Scalar parameters in android is HSV values, such as Java:

 Core. InRange (toHSV, new Scalar (0250, 0), the new Scalar (0255, 0), rgba); 

the filtering is green, if the code used on android what also can't see the


I'm very strange, why do you do?