Flushot opened a new pull request, #27:
URL: https://github.com/apache/tika-docker/pull/27
Tesseract OCR image preprocessor is broken in the current Docker image
because ImageMagick is missing.
You can reproduce this by setting `enableImagePreprocessing` in
tika-config.xml:
```xml
<?xml version="1.0" encoding="UTF-8"?>
<properties>
<parsers>
<parser class="org.apache.tika.parser.DefaultParser">
<parser-exclude
class="org.apache.tika.parser.ocr.TesseractOCRParser"/>
</parser>
<parser class="org.apache.tika.parser.ocr.TesseractOCRParser">
<params>
<param name="enableImagePreprocessing" type="bool">true</param>
</params>
</parser>
</parsers>
</properties>
```
When you try to process a document, you'll get this error:
```
org.apache.tika.parser.ocr.TesseractOCRParser User has selected to
preprocess images, but I can't find ImageMagick.Backing off to original file.
```
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