CCITT4 compression can be used for the best compression of black-white images.
LZW compression can be used for the good lossless compression of gray or color images.
ZIP compression can be used for the best lossless compression of gray or color images.
JPEG compression can be used for the best lossy compression of gray or color images.
VintaSoftTwain.NET SDK automatically detects the best compression for TIFF image if you will set value of the Device.AcquiredImages.TiffCompression property to TiffCompression.Auto (default value).