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Is there a way to save a TIF image file as follows in CompressionCCITT4 using C# with .Net Framework 4.0?

Posted on 2016-09-09
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Last Modified: 2016-09-14
I am developing a C# application using VS2010 and .Net Framework 4.0.

Is there a way to save a TIF image file as follows in CompressionCCITT4 ?

For ex:

img3.Save(tif3, System.Drawing.Imaging.ImageFormat.Tiff);
img3.Dispose();
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Question by:zimmer9
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Robberbaron (robr) earned 500 total points
ID: 41792523
appears so... your pseduo code is close...
a google search brings up
fOrgTiff.Save(ms, fImageCodecInfo, fEncoderParameters);

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where one of the encoder parameters is EncoderValue.CompressionCCITT4

see
http://stackoverflow.com/questions/4336644/c-sharp-converting-tiff-jpeg-compression-to-tiff-compressionccitt4-gives-a-lot-o

but a better explanation is
http://programcsharp.com/blog/post/save-as-g4-ccitt-tiff-with-.net
First, you need a monochrome (1bpp) source GDI+ Bitmap. .NET doesn't have a very good built in mechanism for converting from color to monochrome. The only reliable and performant method is a scale-to-grey algorithm written in unsafe code.
 not the 2007 date so maybe something better.
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