GOCR: Difference between revisions
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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 | 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. | 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). | GOCR.EXE is compiled with GCC 3.2.1 (available via ftp from netlabs). | ||
==Usage== | ==Usage== | ||
Type gocr -h for usage. | Type gocr -h for usage. | ||
Example 'one-liner' of a scan2text.cmd: | Example 'one-liner' of a scan2text.cmd: | ||
scanimage --device=epson --mode=Gray --resolution=300 | gocr - > textfile.txt | |||
Another example: | Another example: | ||
scanimage --device=epson --mode=Gray --resolution=300 1>out.pnm 2>out.error && gocr out.pnm > ocr.txt | |||
==Hints== | ==Hints== | ||
If the image is complex or the letters are small, gocr is quite slow. (expect duration of several minutes!). | |||
If the image is complex or the letters are small, gocr is quite | |||
I suggest that you make your first tests with small scans. | I suggest that you make your first tests with small scans. | ||
==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 | ||
| Line 38: | Line 32: | ||
make | make | ||
Compiling with emx-gcc required 2 more steps: | |||
copy srclibPgm2asc.a srcPgm2asc.a | |||
make | |||
== | ==Links== | ||
* | * [http://www.fbakan.de/gocr-os2.htm GOCR 0.47] | ||
[[Category:Open Source Software]] | [[Category:Open Source Software]] | ||
Latest revision as of 22:34, 7 March 2025
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