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#1 Posted : Wednesday, May 14, 2008 4:23:01 AM(UTC)
basheerco

Groups: Registered
Posts: 4


I am using Leadtools 15 .! how can i compress tiff file ?

I have tried to use this command but the size is still too big.

codecs.Save(image, filename, RasterImageFormat.Tif,
8, 1, image.PageCount, 1, Leadtools.Codecs.CodecsSavePageMode.Overwrite);

let suppose if you have file it size 2.7 MB after compression how should be it size?

please help me, and if you have a code tha't more wonderful..

a waiting your replay



 

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#2 Posted : Wednesday, May 14, 2008 5:18:40 AM(UTC)

Yasir Alani  
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Posts: 3,034

Was thanked: 1 time(s) in 1 post(s)


I understand from your code that you want to save as 8-bit
(grayscale or color) TIF. However, using the RasterImageFormat.Tif file type saves images as TIF without compression.


 


To save as compressed 8-bit TIF, then you can use any of these constants:


1. TifLzw (LZW Compression and RGB color space)


2. TifJpeg (JPEG compression and YUV 4:4:4 color space Lossless)


3. TifJpeg422 (JPEG compression and YUV 4:2:2 color space)


4. TifJpeg411 (JPEG compression and YUV 4:1:1 color space)


5. TifCmp (CMP Compression)


6. TifJbig (JBIG Compression)


7. TifJ2k (JPEG 2000 Compression)


8. TifCmw (Wavelet CMP Compression)


 


There are also other compressed TIFF sub-types but they work with bits per pixel values other than 8.


 


For more details, please read the help topic "File Formats: TIFF (Tagged Image File Format)" in the Raster .NET help file.

 
#3 Posted : Tuesday, May 20, 2008 9:40:22 PM(UTC)
basheerco

Groups: Registered
Posts: 4


thanks,
i get your point ,now it's working fine ,thanks again for your fast help.
 
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