What is the best Image setting for OCR?

[wcoleman]

What is the best Image setting for OCR?

[wcoleman]

To provide the best OCR reading results, Canon recommends using the "TextEnhanced" image mode as their number one recommendation and "AdaptiveThreshold" as the second choice. 

You may want to try both and pick the option that yields the best OCR results for your specific items.  "TextEnhanced" mode is the default value. 

The TextEnhancedBrightness option may also be adjusted to fine-tune the images as needed to optimize OCR reading for your particular documents.

These options are can be set manually in CR-180 driver options file (CR180Options.ini) or by making the following calls prior to calling Ranger's EnableOptions() function.


Ranger.SetDriverOption("FrontBitonalImage", "ImageMode", "TextEnhanced");

Ranger.SetDriverOption("FrontBitonalImage", "TextEnhancedBrightness", "128");

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