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<div class="moz-cite-prefix">Le 12/07/2021 à 20:48,
<a class="moz-txt-link-abbreviated" href="mailto:Matt.Wilkie@yukon.ca">Matt.Wilkie@yukon.ca</a> a écrit :<br>
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cite="mid:1f9e9157f16042abad4ece7210c5f44e@yukon.ca">
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<p class="MsoNormal">Hi Folks,</p>
<p><code><span>gdal_translate</span></code> has the option
<a
href="https://gdal.org/programs/gdal_translate.html#cmdoption-gdal_translate-exponent"
moz-do-not-send="true">
<code><span>-exponent <exp_val></span></code></a> to
use in conjunction with
<code><span>-scale</span></code> that will</p>
<p><i>apply non-linear scaling with a power function. exp_val is
the exponent of the power function (must be positive).</i></p>
<p>This describes what the function does at the mechanical level
but not why or when it might be a good idea. What are
appropriate scenarios to use this feature? How is it useful
and what does it accomplish?</p>
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<p>For example to perform
<a class="moz-txt-link-freetext" href="https://en.wikipedia.org/wiki/Gamma_correction">https://en.wikipedia.org/wiki/Gamma_correction</a></p>
--
<pre class="moz-signature" cols="72"><a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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