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<p>We would need a MAX_Z_ERROR_OVERVIEW config option for that.
Please file an enhancement ticket</p>
<p>Even<br>
</p>
<div class="moz-cite-prefix">Le 18/11/2021 à 12:44, Duarte Carreira
a écrit :<br>
</div>
<blockquote type="cite"
cite="mid:CAHE-9zCusXEy8j2hP9BhjpCNYaWEKcHyHHfq74WsZ75KkjaYQg@mail.gmail.com">
<div dir="ltr">Hi there.
<div><br>
</div>
<div>I am looking into compressing overviews for a DEM, with
LERC_DEFLATE and it works. But I'm trying to set the precision
loss and get better compression, since for overviews I don't
really care that much.</div>
<div>
<div>Ok, so the question is how to set the MAX_Z_ERROR for
overviews compressed with LERC_DEFLATE?</div>
</div>
<div><br>
</div>
<div>More context:</div>
<div>My reasoning is to compress losslessly the dem with deflate
predictor 3, and then compress "lossly" the overviews with
lerc_deflate.</div>
<div>Since this is 32bit dataset, I can't use jpeg on the
overviews.</div>
<div><br>
</div>
<div>Thanks in advance.</div>
<div>Duarte</div>
<div><br>
</div>
</div>
<br>
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