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Property Value
Nullable (boxed) ushort value.This property accesses the Threshholding tag. For black and white TIFF files that represent shades of gray, this tag specifies the technique used to convert from gray to black and white pixels.
Get accessor returns the tag value if the tag is present in the metadata tree, or null otherwise.
Set accessor replaces the current tag value if the tag is present in the metadata tree, adds the tag if it was not present, or deletes the tag if a null value is passed.
See the TIFF 6.0 specification for tag usage details.