I am using openCV4Android and I know there are lots of questions related with this topic. Most of them (the ones with answer), suggest a solution with C++ and add it to the project in the folder jni + Android.mk, etc.
Can I do something to avoid C++ and call every method from Java?
If it is not possible with OpenCV, I am open to try alternatives.
Thanks.
There is a JavaCV - Java interface to the OpenCV library, it is popular for the Android application.
You will need to use JNI NDK for stitching if you want to do stitching with opencv