Tesseract ocr Maui v1.2.0

Changes in TesseractOcrMaui v1.2.0

New Ocr Iterators give user better control:

• Access text layout information
• Easier access over text blocks like Line and Word

Issues/Requests

From issue #41 implement iterators to achieve better structure analysis from recognized text.

For more information

For more information about added iterators see added iterators

Tesseract ocr Maui v1.1.6

New in Tesseract ocr Maui v1.1.6

• Fixes character encoding problems with non ASCII characters #38
• Makes errors clearer by adding more explanatory exceptions

Tesseract ocr Maui v1.1.5

New in Tesseract Ocr Maui v1.1.5

• Fixes to ios (issue #32)

NEW IN TESSERACT OCR MAUI v1.1.0

TesseractOcrMaui Gets Support For iOS

• Nuget package now supports iOS platform
• Closes issue #11
• All platforms now run Tesseract 5.3.3 or newer

New Runtimes

Platform	Architechture
iOS emulator	x86_64
iOS emulator	Arm64
iOS physical device	Arm64

New contributor @sivanmg

Big thanks to Ivan Mendoza for contributions towards iOS support!
Without help there wouldn't be iOS support for this package.

Tesseract Ocr Maui v1.1.0

NEW IN TESSERACT OCR MAUI v1.1.0

TesseractOcrMaui Gets Support For iOS

• Nuget package now supports iOS platform
• Closes issue #11
• All platforms now run Tesseract 5.3.3 or newer

New Runtimes

Platform	Architechture
iOS emulator	x86_64
iOS emulator	Arm64
iOS physical device	Arm64

New contributor @sivanmg

Big thanks to Ivan Mendoza for contributions towards iOS support!
Without help there wouldn't be iOS support for this package.

Tesseract ocr Maui v1.0.9

Add engine mode configuration to ITesseract

• Set which engine tesseract should use by providing TesseractOcrMaui.Enums.EngineMode
• Closes issue #22

interface ITessearct
{
    /// <summary>
    /// Engine mode Tesseract should use, for example lstm or tesseract
    /// </summary>
    EngineMode EngineMode { get; set; }
}

Updated Windows and Android libraries to use tesseract 5.3.3

Tesseract ocr Maui v1.0.8

Add engine configuration property (issue #16) to ITesseract

Example of configuration

ITesseract tesseract = GetTesseract();    // This represents some way of getting ITesseract object, for example DI
tesseract.EngineConfiguration = (engine) =>
{
    // Engine uses DefaultSegmentationMode, if no other is passed as method parameter.
    // If ITesseract is injected to page, this is only way of setting PageSegmentationMode.
    // PageSegmentationMode defines how ocr tries to look for text, for example singe character or single word.
    // By default uses PageSegmentationMode.Auto.
    engine.DefaultSegmentationMode = TesseractOcrMaui.Enums.PageSegmentationMode.Auto;
    
    engine.SetCharacterWhitelist("abcdefgh");   // These characters ocr is looking for
    engine.SetCharacterBlacklist("abc");        // These characters ocr is not looking for
    // Now ocr should be only finding characters 'defgh'
};
    

• Bug fixes
• Issue #17 limitation is better represented when jpeg image is loaded as byte[] in Android physical device

Tesseract ocr Maui v1.0.7

Add new API methods to process images as

• byte array
• Leptonica Pix image
  Fix traineddata files always to be downloaded, even if they where already ready
  Bug fixes

Tesseract ocr Maui v1.0.6

• Fix dlls not loading in Windows
• Change Tesseract.cs Api so that it can throw DllNotFoundException if dll are not loaded correctly
• Docs updated in code

Tesseract ocr Maui v1.0.4

• Support many languages passed as string where languages are separated with plus (+) symbol
• New Tesseract.cs constuctor to make working without dependecy injection easier

Tesseract ocr Maui v1.0.3

• Bindings for Tesseract
• Dependency injection support
• Windows support
• Android support
• Easy to use high-level ITesseract Api

Supported platforms

Platform	Architechture
Windows	x86_64
Android	x86_64
Android	x86
Android	Arm64-v8a
Android	Arm-v7a