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Can't you just export the reflectance raster to an "x,y,z" file?
Using gdal_translate, choose the output format "-of XYZ". You can do
this in QGIS, or using GRASS you can also export to a .csv file.<br>
<br>
<br>
<div class="moz-cite-prefix">On 04/18/2018 08:44 AM, Joshua Rust
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CA+LLJSjoG7nugmc=FNeXiLFp-syriCyc3VxZ1jJq9zqV-7L3pw@mail.gmail.com">
<div dir="ltr">Hi,
<div><br>
</div>
<div>I am working with an agricultural research team analyzing
multispectral imagery taken from a UAV over fields
containing plots with different nitrogen treatments. I created
a grid over my geotiff in QGIS, and have run zonal statistics
on this layer and compared the output from this to actual leaf
analysis to derive a correlation. That is looking nice.</div>
<div>What I wish to do now, however, is to obtain <i>each</i>
individual reflectance value for <i>each</i> pixel in my grid
plots. So, for example, zonal statistics tells me there are
22348 pixels in a plot and it tells me the max, min, median
etc. I would like to see the values for each of the 22348
pixels and work with that. It will be a monstrous file I know
but I can live with that.</div>
<div>Is there a plugin that will quickly export this info for me
to .csv or txt?</div>
<div><br>
</div>
<div>Cheers</div>
<div><br>
</div>
<div>Josh<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature" data-smartmail="gmail_signature">
<div dir="ltr">
<div>
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<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt"><br>
</span></p>
<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">Joshua
Rust</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">
| Technical Officer | Soils Research |</span></p>
<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">NSW
Department of Primary Industries</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">
</span></p>
<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">1243
Bruxner Hwy Wollongbar NSW 2477 </span></p>
<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">T</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">:
02 6626 1252 | </span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">F</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">:
02 6628 3264 | </span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">E</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">:
<a href="mailto:Joshua.rust@dpi.nsw.gov.au"
target="_blank" moz-do-not-send="true">Joshua.rust@dpi.nsw.gov.au</a>
</span></p>
<p style="margin-bottom:0pt">
</p>
<p><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#c20041;FONT-SIZE:9pt">W</span><span
style="LINE-HEIGHT:115%;FONT-FAMILY:'Arial','sans-serif';COLOR:#004080;FONT-SIZE:9pt">:
<a href="http://www.dpi.nsw.gov.au/"
target="_blank" moz-do-not-send="true">www.dpi.nsw.gov.au</a></span></p>
</div>
</div>
</div>
</div>
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<br>
<pre class="moz-signature" cols="72">--
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918</pre>
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