OCR Evaluation in Python: Measure CER and WER with jiwer

Original author：Professor Py: AI Engineering

Original source：https://www.youtube.com/embed/bCHclQ72ecg

OCR quality checks with jiwer: compare raw vs. normalized WER/CER and pinpoint word-level edits that can break RAG retrieval. Learn a practical workflow to detect single-character and token errors, apply normalization policies, and gate documents before vector indexing. Demo uses jiwer (cer, process_words, process_characters) and alignment diagnostics in Python for corpus-level OCR evaluation. #OCR #jiwer #WER #CER #RAG #Python Subscribe for clear AI engineering and Python tutorials.