Android crop image like camscanner

Question

I am developing a project which requires the image crop feature like camscanner android application,when a picture is taken and when user clicks the crop button, a rectangle

Answer 1

I had a similar requirement and I too didn't find any concrete solution similar to CamScanner, so I have taken the challenge and have implemented a scan library (on top of OpenCV, rich image processing library) similar to CamScanner which can be easily integrated into an existing application, using the library you will be able to select the exact edges in whatever angle and crop the document accordingly from the selected 4 edges and change the perspective transformation of the cropped image.

Github link of the Android ScanLibrary: https://github.com/jhansireddy/AndroidScannerDemo