OCR (Text Reader)
OCR reads letters from a picture and turns them into computer text.
What it does
OCR reads letters from a picture and turns them into computer text.
Binarization: Black/white conversion • Character: A single letter
How it works
- Look for text shapes in the image.
- Match the shapes to letters and numbers.
- Save the result as editable text.
Uses & Applications
- A phone can copy text from a photo of homework.
- A scanner can turn a paper form into searchable text.
- A mail system can read addresses on envelopes.
In short
OCR turns text on paper into digital text.
Try it yourself
Read a letter made of tiny squares
A picture of a letter is a grid of light and dark squares. Compare it with stored A, H, and L patterns.
Your turn
Change one setting at a time. Reset example puts everything back.
Match a tiny bitmap character
Step 1Why this happens