Tesseract 4 adds a new neural net (LSTM) based OCR engine which is focused on line recognition, but also still supports the legacy Tesseract OCR engine of Tesseract 3 which works by recognizing character patterns. - Github

Frog / HN

using Tesseract and OpenCV

sudo apt install tesseract-ocr
sudo apt install libtesseract-dev
sudo pip install pytesseract

OCRFeeder

OCRFeeder is an optical character recognition suite for GNOME, which also supports virtually any command-line OCR engine, such as CuneiForm, GOCR, Ocrad and Tesseract.