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Tiff File Compression

Posted on 2008-10-06
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Last Modified: 2013-12-17
The below shown code I used to set the "CompressionCCITT4" for Tiff Image, while generating the code, I am getting the error message called "Invalid Parameter".

Rectify the error provide the alternate solution for the same.

ImageCodecInfo ici = getCodecForstring("TIFF");
Encoder myEncoder = Encoder.Compression;
EncoderParameters myEncoderParameters = new EncoderParameters(1);
EncoderParameter myEncoderParameter = new EncoderParameter(myEncoder, (long)EncoderValue.CompressionCCITT4);
myEncoderParameters.Param[0] = myEncoderParameter;

_img.Save(sSavePath, ici, myEncoderParameters);
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Question by:Rajasii
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Expert Comment

by:Michel Plungjan
ID: 22650591
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Author Comment

by:Rajasii
ID: 22656911
I have tried the same for past 3 weeks, hope there is some bug with the compression type.

I change the color to black & white of tiff image. It changes only the color not the property.

due to this I was unable to set the EncoderValue.CompressionCCITT4 type.

provide the solution for the same.

thanks.
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 22657060
Did you look here too?
http://www.bobpowell.net/onebit.htm

If you did, I have no more ideas
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Accepted Solution

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Rajasii earned 0 total points
ID: 22657969
Thanks, for your work on the same. I also tried the same activity, it will change the color of the layer not the color property.

Finally I got the solution, By setting the image quality with JPEG pixel format for the tiff image, the size get reduced.

Issue
ImageCodecInfo ici = getCodecForstring("TIFF");

Solution.
ImageCodecInfo ici = getCodecForstring("JPEG");

by changing the parameter, my issue got solved.




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Expert Comment

by:sindhureddy
ID: 32862012
I tried using this above solution but I couldnot save multipage tiff when I set it to JPEG pixel format. Please let me know if there is any other way to reduce the tiff file size
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