My impression is that the open source tesseract could be a component of an OCR system, but much more has to be done in preprocessing, registration, and segmenta

My impression is that the open source tesseract could be a component of an OCR system, but much more has to be done in preprocessing, registration, and segmentation to be able to use it for what we could consider “OCR”. Quite disappointing that OCR is still something that is proprietary, closed source, and expensive in 2021.