> Ubuntu has shipped for a long time libjpeg-turbo as the system libjpeg.so.8.
> It has the same ABI and behaviour as the corresponding IJG version, so it
> can be used as a complete replacement.
>
> If you want to check:
> objdump -T /usr/lib/x86_64-linux-gnu/libjpeg.so.8 | grep LIBJPEGTURBO
>
>
Andreas,
> Interesting - thanks for the hint about turbo-jpeg.
>
> I found out that my gdal is linked against libjpeg.so.8 and not against
> libturbojpeg.so.0 which is also present on my system.
>
> Would I have to tell gdal to compile against libturbojpeg with the
> --with-jpeg= flag in order t
Hi Thomas,
Interesting - thanks for the hint about turbo-jpeg.
I found out that my gdal is linked against libjpeg.so.8 and not against
libturbojpeg.so.0 which is also present on my system.
Would I have to tell gdal to compile against libturbojpeg with the
--with-jpeg= flag in order to benefi
Andreas,
The size gains compared to JPEG are marginal, at the cost of noticeably
higher compression and decompression times (especially compared to the
optimized turbo jpeg library). WEBP does however support an alpha channel
which can be desirable, as it avoids having to add a mask IFD to the TIFF
Thanks Thomas,
Yes, compiling it with libtiff=internal and libgeotiff=internal did the
trick - thanks for the hint!
Do you recommending using webp instead of jpeg inside GTIFF or COG? It
seems like the WEBP compression produces smaller file sizes than JPEG,
but how does it look speed-wise reg
You might need to compile with gdal's internal libtiff so that webp-in-tif
support is enabled (i.e. the system libtiff might not have webp support).
Also note you should probably be adding "-co TILED=YES" to your translate
command.
On Fri, Oct 9, 2020 at 3:07 PM Andreas Neumann wrote:
> Hi,
>
>
Hi,
I am using a self-compiled GDAL 3.1.2 version and try to create a GTIFF
file with COMPRESS=WEBP
libwebp-devel and other webp automatic dependencies are installed on
this ubuntu 18.04 machine. I could also compile against libwebp
However, when running gdal_translate like
gdal_translat
