Hi,
I made a tesseract-ocr ui frontend, which will convert images stored in the clipboard into texts.
Different from https://www.b4x.com/android/forum/threads/screen-ocr-in-5-minutes-and-50-lines.90655/, my version is very simple. It utilizes the system's screencapture shortcut to store images in the clipboard. Then I use jshell to run tesseract to OCR these images.
I have put the project on GitHub: https://github.com/xulihang/tesseract-clipboard