<div dir="ltr">Hi Even. I created a ticket:<div><a href="https://github.com/OSGeo/gdal/issues/4848">https://github.com/OSGeo/gdal/issues/4848</a></div><div><br></div><div>Thanks.<br><div><br></div><div>><span style="color:rgb(0,0,0);white-space:pre-wrap">We would need a MAX_Z_ERROR_OVERVIEW config option for that. Please >file </span><span style="color:rgb(0,0,0);white-space:pre-wrap">an enhancement ticket</span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">></span></div><div><span style="color:rgb(0,0,0);white-space:pre-wrap">>Even</span></div><pre style="white-space:pre-wrap;color:rgb(0,0,0)">>Le 18/11/2021 à 12:44, Duarte Carreira a écrit :
>><i> Hi there.
</i>>><i>
</i>>><i> I am looking into compressing overviews for a DEM, with LERC_DEFLATE
</i>>><i> and it works. But I'm trying to set the precision loss and get better
</i>>><i> compression, since for overviews I don't really care that much.
</i>>><i> Ok, so the question is how to set the MAX_Z_ERROR for overviews
</i>>><i> compressed with LERC_DEFLATE?
</i>>><i>
</i>>><i> More context:
</i>>><i> My reasoning is to compress losslessly the dem with deflate predictor
</i>>><i> 3, and then compress "lossly" the overviews with lerc_deflate.
</i>>><i> Since this is 32bit dataset, I can't use jpeg on the overviews.
</i>>><i>
</i>>><i> Thanks in advance.
</i>>><i> Duarte</i></pre></div></div>