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This article describes how this plugin works and how to configure it.
Precondition
If you are installing on linux systems, please install tesseract first. For windows systems it is not required.
CentOS 8
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sudo dnf config-manager --add-repo https://download.opensuse.org/repositories/home:/Alexander_Pozdnyakov/CentOS_8/
sudo rpm --import https://build.opensuse.org/projects/home:Alexander_Pozdnyakov/public_key
sudo dnf install tesseract
sudo dnf install tesseract-langpack-deu |
RHEL 7
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sudo yum-config-manager --add-repo https://download.opensuse.org/repositories/home:/Alexander_Pozdnyakov/RHEL_7/
sudo yum update
sudo yum install tesseract
sudo yum install tesseract-langpack-deu |
CentOS 7
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sudo yum-config-manager --add-repo https://download.opensuse.org/repositories/home:/Alexander_Pozdnyakov/CentOS_7/
sudo rpm --import https://build.opensuse.org/projects/home:Alexander_Pozdnyakov/public_key
sudo yum update
sudo yum install tesseract
sudo yum install tesseract-langpack-deu |
Debian (als Root ausführen)
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sudo apt install tesseract-ocr
sudo apt install libtesseract-dev |
How it works
The plugin have an built in recognizer. In addition it is capable to configure remote instances. How they are working is out of scope of this article. Here only the built it OCR recognizer is explained.
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config item | meaning | default |
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Disable builtin reco | If there are other recognizer instances configured and this flag is enabled, the local recognizer instance is disabled. | true |
Http Connection timeout (ms) | If other recognizer instances are configured, they will communicate by HTTP. This is the http timeout. | 0 |
Query Thread Pool | 5 | |
Debug Level | 2 | |
Recognition Languages | The recognizer languages. | eng+deu |
Working Directory |