How to Reduce the size of camera source in mobile vision API text detection

Question

As google vision api text detection previews full screen to scan text. I want a small rectangle for text detection and display the recognized text below in a textbox

Answer 1

You can control the size of the preview widget. Change this line https://github.com/googlesamples/android-vision/blob/master/visionSamples/ocr-reader/app/src/main/res/layout/ocr_capture.xml#L12 to whatever you want.

This is the Android documentation about the possible values you can use for layout_width and layout_height properties https://developer.android.com/reference/android/view/ViewGroup.LayoutParams.html