ImageGear for C and C++ on Windows v21.0 - Updated
API Reference Guide / TWAIN Component API Reference / TWAIN Component Enumerations / enumIGTWAINNoiseFilter
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    enumIGTWAINNoiseFilter
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    This enumeration selects the algorithm used to remove noise.

    Values:

    IG_TW_NF_AUTO Auto.
    IG_TW_NF_LONEPIXEL Lonepixel.
    IG_TW_NF_MAJORITYRULE Majority rule.
    IG_TW_NF_NONE None.