saving image using emulator [closed]

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I'm using android studio with opencv3.4.0, i'm looking to save image after applying some functions. I'm using bluestacks emulator. all the tuto are working with smartphone but i couldn't find how to save image using emulator. there's a way to do it or it's impossible ?! I found this line of code but it didn't work for me, it don't bug but it give no result. can someone help me ?!

MediaStore.Images.Media.insertImage(getContentResolver(),bmp, "image" , "image after processing");