Looking for wrapper for edge detection library

[ThePlankton]

I'm looking for the library Johan Schoeman posted (link below) to be compiled and able to return the image to my B4A app. This is a job offer. Please let me know what this might cost.

Another onActivityResult: wi is null

I'm trying to create a wrapper of this repository with little success. Always getting wi is null. I also tried with JavaObject with no success still same result. This is my wrapper code. This the try with JavaObject What am I doing wrong. Advice to make this work correctly.

www.b4x.com