OCR

Visual Novel OCR & Text Recognition for Video Games

Getting started with OCR

1. Set Up and Install an OCR Engine

Before starting, ensure you have set up and installed one of the supported OCR engines:

OCR Engine	Best For	Notes
Tesseract OCR	High contrast text (black on white)	Free Requires installation and configuration
Windows OCR	Basic text recognition	Free Integrated with Windows
EasyOCR	Basic text recognition	Free Requires installation and configuration
Google Cloud Vision	Complex background and colored text	Paid (Free tier available) Requires API setup
Azure Cloud Vision	Complex background and colored text	Paid (Free tier available) Requires API setup
Google Lens	Complex background and colored text	Free
Custom - Command Line	Custom workflows and integration	Requires setup knowledge Highly flexible for developers
Custom - HTTP POST	Custom workflows and integration	Requires setup knowledge Highly flexible for developers

2. Running VNTranslator

After installing the OCR engine, follow these steps to use OCR:

• Select the OCR option

• Select the OCR Engine & Language option

• Select the Output option

• Press the Start button

If you're using Windows OCR or Tesseract OCR, make sure you select the correct OCR language:

• If the game text is in Japanese, select the Japanese OCR language:

  • WinOCR | Japanese

  • Tesseract | Japanese (jpn.traineddata)

• If the game text is in English, select the English OCR language:

  • WinOCR | English (United Kingdom)

  • WinOCR | English (United States)

  • Tesseract | English (eng.traineddata)

3. Testing Screen Capture

After running OCR, test if the Screen Capture works properly by following these steps:

• Click Pre-processing in the Menu Bar

• Enable Adjustments with the Greyscale option

• Click Capture, and then you can increase the Threshold value

What to Expect:

• If the capture works well, the Screen Capture will display the captured image in Black and White

• In the Pro Version, you can also preview the capture in the OCR Master window

If the Screen Capture does not work or you get an error message, refer to the Troubleshooting section

---

OCR Features

For more detailed information, refer to https://docs.vntranslator.com/user-guide/ocr/features

Tips for Better OCR Accuracy

• https://docs.vntranslator.com/user-guide/ocr/understanding-ocr-and-improving-accuracy

Comparing OCR Engines

• https://docs.vntranslator.com/user-guide/ocr/ocr-engines-comparison

Troubleshooting

• https://docs.vntranslator.com/help/troubleshooting/ocr