crop area of detected barcode from returned List<Barcode>

Question

i have image(ImageInput) for scan barcode area using google_mlkit_barcode_scannin function, then it returned List that have cornerPoints and boundingBox

how to crop it as new image by cornerPoints or boundingBox..thanks

Answer 1

you can try use the Bitmap and Canvas

for eg

Bitmap original = BitmapFactory.decodeFile(input);
Bitmap bitmap = original.copy(Bitmap.Config.ARGB_8888, true);

//box that you have
int left = box[0];
int top = box[1];
int right = box[2];
int bottom = box[3];
Bitmap cropped = Bitmap.createBitmap(bitmap, left, top, right - left, bottom - top);

FileOutputStream out = new FileOutputStream("result.jpg")
cropped.compress(Bitmap.CompressFormat.JPEG, 100, out);