---
name: "ocr4gamera"
section: "1"
platform: "linux"
package: "python-gamera.toolkits.ocr"
version: "1.2.2-6"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/ocr4gamera"
---

# ocr4gamera(1)

OCR system using the Gamera framework

## NAME

ocr4gamera - OCR system using the Gamera framework

## USAGE

**ocr4gamera** -x *\<traindata\>* \[*options*\] *\<imagefile\>*

## OPTIONS

- **-v** *\<int\>,* **--verbosity=***\<int\>*

  Set verbosity level to *\<int\>*. Possible values are 0 (default): silent operation; 1:  information on progress; \>2: segmentation info is written to PNG files with prefix **debug\_**.

- **-h, --help**

  Display help and exit.

- **--version**

  Print version and exit.

- **-d, --deskew**

  Do a skew correction (recommended).

- **-mf \<ws\>, --median\_filter=\<ws\>**

  Smooth the input image with a median filter with window size *\<ws\>*. Default is *\<ws\>=0*, which means no smoothing

- **-ds \<s\>, --despeckle=\<s\>**

  Remove all speckle with size *\<= \<s\>*. Default is *\<s\> = 0*, which means no despeckling.

- **-f, --filter**

  Filter out very large (images) and very small components (noise).

- **-a, --automatic-group**

  Autogroup glyphs with classifier.

- **-x** *\<file\>,* **--xmlfile=***\<file\>*

  Read training data from *\<file\>*.

- **-o** *\<xml\>,* **--output=***\<xml\>*

  Write recognized text to file *\<xml\>* (otherwise it is written to stdout).

- **-od \<dir\>, --output\_directory=\<dir\>**

  Writes for each input image *\<img\>* the recognized text to *\<dir\>/\<img\>.txt*. Note that this option cannot be used in combination with **-o** (--outfile).

- **-c** *\<csv\>,* **--extra\_chars\_csvfile=***\<csv\>*

  Read additional class name conversions from file *\<csv\>*. *\<csv\>* must contain one conversion per line.

- **-R** *\<rules\>,* **--heuristic\_rules=***\<rules\>*

  Apply heuristic rules *\<rules\>* for disambiguation of some chars. *\<rules\>* can be **roman** (default) or **none** (for no rules).

- **-D, --dictionary-correction**

  Correct words using a dictionary (requires aspell or ispell).

- **-L** *\<lang\>,* **--dictionary-language=***\<lang\>*

  Use *\<lang\>* as language for aspell (when option **-D** is set).

- **-e** *\<int\>,* **--edit-distance=***\<int\>*

  Correct words only when edit distance not more than *\<int\>*.

- **-h***o,* **--hocr\_out**

  Writes output as hocr file (only works with the **-o** option).

- **-hi \<hocrfile\>, --hocr\_in=\<hocrfile\>**

  Uses an hocr input file for textline segmentation.