Tesseract OCR is an offline tool, which provides some options it can be run with. ... In many cases, one might resort to run it in auto-mode, but it's always useful to think about what the potential layouts of the documents might be and hence provide some hints to Tesseract, so it can yield more accurate results.

Is Google OCR better than Tesseract?

If you prefer accuracy Tesseract is a winner and if you prefer time Google Vision is the best option. Also there are couple of other CUDA supported projects which may be better than them. Google Vision OCR is paid and it better than tesseract, while tesseract is completely free and an open-source project.

How does Google Tesseract work?

Tesseract tests the text lines to determine whether they are fixed pitch. Where it finds fixed pitch text, Tesseract chops the words into characters using the pitch, and disables the chopper and associator on these words for the word recognition step.