GOCR: Difference between revisions

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==How to compile with GCC 3.2.1==
==How to compile with GCC 3.2.1==
    get and install os2unix
get and install os2unix
    delete make.bat
delete make.bat
    os2unix -all
os2unix -all
    sh configure
sh configure
    (probably only if you use 2.0 of os2unix) remove the 3 lines
(probably only if you use 2.0 of os2unix) remove the 3 lines
 
ifeq ($(omf),on)
    ifeq ($(omf),on)
    LIBOBJS := $(LIBOBJS:.o=.obj)
        LIBOBJS := $(LIBOBJS:.o=.obj)
endif
    endif
after
 
LIBOBJS = pgm2asc.$(obj)
    after
from src/Makefile
    LIBOBJS = pgm2asc.$(obj)
make
    from src/Makefile
    make


Compiling with emx-gcc required 2 more steps:
Compiling with emx-gcc required 2 more steps:
  copy srclibPgm2asc.a srcPgm2asc.a
  copy srclibPgm2asc.a srcPgm2asc.a
  make
  make
==Links==
* [http://www.fbakan.de/gocr-os2.htm GOCR 0.47]


[[Category:Open Source Software]]
[[Category:Open Source Software]]

Latest revision as of 21:58, 12 January 2026

GOCR, also often referred to as jOCR, is an OCR (Optical Character Recognition) program, developed under the GNU Public License. It converts scanned images of text back to text files. Joerg Schulenburg started the program, and now leads a team of developers with Bruno Barberi Gnecco. It reads images in many formats (pnm, pbm, pgm, ppm, some pcx and tga image files and outputs a text file. The gOCR/2 port was done by Franz Bakan.

Here you can find OS/2 executables of GOCR Version 0.38 if you want to play with it. GOCR.EXE is compiled with GCC 3.2.1 (available via ftp from netlabs).

Usage

Type gocr -h for usage.

Example 'one-liner' of a scan2text.cmd:

scanimage --device=epson --mode=Gray --resolution=300 | gocr - > textfile.txt

Another example:

scanimage --device=epson --mode=Gray --resolution=300 1>out.pnm 2>out.error && gocr out.pnm > ocr.txt

Hints

If the image is complex or the letters are small, gocr is quite slow. (expect duration of several minutes!).

I suggest that you make your first tests with small scans.

How to compile with GCC 3.2.1

get and install os2unix
delete make.bat
os2unix -all
sh configure

(probably only if you use 2.0 of os2unix) remove the 3 lines

ifeq ($(omf),on)
   LIBOBJS := $(LIBOBJS:.o=.obj)
endif

after

LIBOBJS = pgm2asc.$(obj)

from src/Makefile

make

Compiling with emx-gcc required 2 more steps:

copy srclibPgm2asc.a srcPgm2asc.a
make