Tesseract engine mode access

[henrivain]

Hi @henrivain
I think its great you started working on this iOS-branch - My project is for Android and later on for iPhone.
I have tried using the Tesseract-nuget (Not yours) and it work fine for my project but it only works in Windows.
For my project i found that running Tesseract with enginemode: EngineMode.TesseractOnly was better than default and Lstm.
Is it possible to add EngineMode (TesseractOnly, LstmOnly, TesseractAndLstm and Default)to your tesseractOcrMaui.EngineConfiguration?
Regards

Originally posted by @ThomasMunch in #11 (comment)

[henrivain]

Yes, It seems to possible.
I do the changes as soon as I can.
It will probably take at least little over a week until I can roll up new version of nuget.

List of required changes:

ITessEngineConfigurable add new property

EngineMode DefaultEngineMode { get; set; } 

Add new EngineMode and add int values

public enum EngineMode
{
    NotSet = -1,
    TesseractOnly = 0,
    LstmOnly = 1,
    TesseractAndLstm = 2,
    Default = 3
}

TessEngine changes

• Set ctors to have "EngineMode mode = EngineMode.NotSet"
• Add check to be run before tesseract API initializer

if (mode is EngineMode.NotSet)
{
    mode = DefaultEngineMode;
}

What comes to IOS support

I am currently working with someone that has gotten ios library working. We still have some technical difficulties that we need to solve. I don't promise anything, but I think we can get it working.