Page 1 of 1

Poor TIFF compression

Posted: Mon Mar 22, 2021 11:36 am
by Luca_P
Hi,

starting from a 57.1 MB uncompressed TIFF file I obtained:

- LZW+Predict. ("only one strip" selected): 39.9 MB

- ZIP ("only one strip" selected): 53.7 MB

The ZIP compression seems poor since with another program I obtained a 37 MB file.

Xnview version 2.49.5.

Re: Poor TIFF compression

Posted: Tue Mar 23, 2021 10:23 am
by xnview
is it possible to have the original file and compressed one?

Re: Poor TIFF compression

Posted: Tue Mar 23, 2021 7:18 pm
by Luca_P
Here you can find an example with a photo reduced to 50% and compressed with Xnview and another software. You can see the difference with ZIP compression, which is almost always the best solution with the other software:

https://www.mediafire.com/folder/2gck1e ... essed+TIFF

However, I notice that the smaller ZIP file is not displayed correctly by the file hosting site, so there may be compatibility problems.

Re: Poor TIFF compression

Posted: Wed Mar 24, 2021 2:01 pm
by xnview
ok, thanks, i'll check