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Compression of GeoTIFF - data destruction or not?
Posted: Mon Apr 06, 2020 3:43 pm
by Peter2
See also here:
viewtopic.php?f=35&t=36335&p=145491&hil ... ff#p145491
I have some TIF, uncompressed, realized by XnConvert as GeoTIFF. The new "save as TIF - CCITT4" creates a new, small file without messages or alerts - but after reloading XnConvert tells me only "TIF file", no more GeoTIFF. Is the Geo-data destroyed?
Re: Compression of GeoTIFF - data destruction or not?
Posted: Fri Apr 17, 2020 7:54 am
by xnview
currently GeoTIFF are not supported
Re: Compression of GeoTIFF - data destruction or not?
Posted: Fri Apr 17, 2020 8:29 am
by Peter2
xnview wrote: Fri Apr 17, 2020 7:54 am
currently GeoTIFF are not supported
So please add an option or a message to handle this situation:
Message / Dialogue:
"You want to modify a GeoTIFF which will result in lost of data. What to you want to do:
a) Continue this
b) Continue all GeoTIFF
c) Skip this
d) Skip all GeoTIFF"
Re: Compression of GeoTIFF - data destruction or not?
Posted: Sat Apr 18, 2020 8:00 am
by xnview
could you send me a sample file?
Re: Compression of GeoTIFF - data destruction or not?
Posted: Sun Apr 19, 2020 12:18 pm
by Peter2
Thanks for checking it.
Here are some sample links from another posting:
viewtopic.php?f=35&t=36335&p=145491&hil ... ff#p145502
Re: Compression of GeoTIFF - data destruction or not?
Posted: Mon May 18, 2020 3:59 pm
by Peter2
Hi Pierre
something new with this?
Peter
Re: Compression of GeoTIFF - data destruction or not?
Posted: Fri May 22, 2020 11:52 am
by xnview
Peter2 wrote: Mon May 18, 2020 3:59 pm
something new with this?
sorry no
Re: Compression of GeoTIFF - data destruction or not?
Posted: Wed Sep 23, 2020 12:04 pm
by Peter2
Hi Pierre
is this topic on your list / on your focus, or does it have less priority?
Re: Compression of GeoTIFF - data destruction or not?
Posted: Sat Sep 26, 2020 6:30 am
by xnview
always in my list but with a low priority
Re: Compression of GeoTIFF - data destruction or not?
Posted: Mon Jan 09, 2023 10:48 am
by Peter2
version 1.40 of XnViewMp shows the files and the metadata very fine, but when I save it as "LZW compressed TIFF" the Geodata are lost.
Is there a way to keep them?
Edit:
maybe these tools can help / can be integrated?
https://gdal.org/