Compression of GeoTIFF - data destruction or not?

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Peter2
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Compression of GeoTIFF - data destruction or not?

Post by Peter2 » Mon Apr 06, 2020 3:43 pm

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?
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Re: Compression of GeoTIFF - data destruction or not?

Post by xnview » Fri Apr 17, 2020 7:54 am

currently GeoTIFF are not supported
Pierre.

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Re: Compression of GeoTIFF - data destruction or not?

Post by Peter2 » Fri Apr 17, 2020 8:29 am

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"
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Re: Compression of GeoTIFF - data destruction or not?

Post by xnview » Sat Apr 18, 2020 8:00 am

could you send me a sample file?
Pierre.

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Re: Compression of GeoTIFF - data destruction or not?

Post by Peter2 » Sun Apr 19, 2020 12:18 pm

Thanks for checking it.
Here are some sample links from another posting:
viewtopic.php?f=35&t=36335&p=145491&hil ... ff#p145502
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Re: Compression of GeoTIFF - data destruction or not?

Post by Peter2 » Mon May 18, 2020 3:59 pm

Hi Pierre

something new with this?

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Re: Compression of GeoTIFF - data destruction or not?

Post by xnview » Fri May 22, 2020 11:52 am

Peter2 wrote:
Mon May 18, 2020 3:59 pm
something new with this?
sorry no
Pierre.

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