gocr

Optical character recognition program

TLDR

OCR an image

$ gocr [image.pbm]

Set recognition mode

$ gocr -m [mode] [image.pbm]

Output to file

$ gocr -o [output.txt] [image.pbm]

Set character filter

$ gocr -C "[a-zA-Z0-9]" [image.pbm]

gocr is an optical character recognition (OCR) program that reads images and outputs recognized text. It supports various image formats including PBM, PGM, PPM, and can be tuned for specific character sets.The tool processes scanned documents and images to extract text, integrating into document processing pipelines via standard input and output.

PARAMETERS

IMAGE

Image file to process.

-o FILE

Output file.

-m MODE

Recognition mode.

-C CHARS

Expected characters.

-i FORMAT

Input format.

--help

Display help information.

INSTALL

sudo apt install gocr

sudo dnf install gocr

sudo pacman -S gocr

sudo zypper install gocr

brew install gocr

nix profile install nixpkgs#gocr

CAVEATS

Accuracy varies by image quality. Works best with clean scans. Consider tesseract for better accuracy.

HISTORY

gocr (also known as JOCR, since the name GOCR was already taken on SourceForge) was created by Jörg Schulenburg in the late 1990s as a free OCR program under the GPL.

RESOURCES

Homepage