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XnView 1.50: save as TIF CCITT Group 4 compression

Posted: Tue May 25, 2004 1:51 pm
by Pascal
desperate with TIF compressions: how can I convert a file into TIF with CCITT Group 4 compression ??

The option offered in the save-options "binary options" CCITT G4 doesn't really get the result I wish.
For a single page I expect a 1 Bit file with about 100kB size.
All my trials lead to either a LZW-compressed or jpg-compressed 24 Bit file.

Thanks for your help!

Pascal

Re: XnView 1.50: save as TIF CCITT Group 4 compression

Posted: Tue May 25, 2004 2:23 pm
by xnview
Pascal wrote:desperate with TIF compressions: how can I convert a file into TIF with CCITT Group 4 compression ??

The option offered in the save-options "binary options" CCITT G4 doesn't really get the result I wish.
For a single page I expect a 1 Bit file with about 100kB size.
All my trials lead to either a LZW-compressed or jpg-compressed 24 Bit file.
First, use the 1.68.1.
Your original file is in 24bits?? Use Image/convert binary, before to save it.
Pierre.

Posted: Wed Jul 28, 2004 3:23 pm
by David_T
I have a similar problem

I try to convert a TIFF in CCITT g4 format without result.

Open in photoshop my TIFF original image is in gray 8 bits
But with Xnview i read TIFF couleur 256

Posted: Wed Jul 28, 2004 6:18 pm
by xnview
David_T wrote:I have a similar problem
I try to convert a TIFF in CCITT g4 format without result.
Open in photoshop my TIFF original image is in gray 8 bits
But with Xnview i read TIFF couleur 256
You must convert your picture in binary.
Pierre.