How do computers 'see'? Unlocking the secrets of pixels, object detection, and OCR.
One of the most useful types of computer vision is OCR (Optical Character Recognition).
This is how your phone can scan a document or translate a menu in a foreign language.
1. **Detection**: First, the AI looks for "blobs" that look like letters.
2. **Recognition**: It compares those blobs to shapes it knows. "This blob looks 99% like the letter 'A'."
3. **Context**: Modern AI uses language skills to fix mistakes. If it sees "App1e", it knows you probably meant "Apple".