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Hi Marius,<br>
Thanks for the response. See below:<br>
<br>
On 2011-02-20 21:16, Marius Jigmond wrote:
<blockquote cite="mid:BLU0-SMTP46802185302E9C22972C02B2D60@phx.gbl"
type="cite">
<pre wrap="">Are you sure that the white you see is a pure 255/255/255? Albeit, the
nearblack with its near default of 15 would have likely taken care of
that.
</pre>
</blockquote>
except that when I run nearblack (v1.7.3), it doesn't create the output
tiff file.<br>
nearblack -white -o 0394w.tif 0394.tif<br>
ERROR 4: Creation of file 0394w.tif failed.<br>
<br>
<blockquote cite="mid:BLU0-SMTP46802185302E9C22972C02B2D60@phx.gbl"
type="cite">
<pre wrap="">
If you load two othophotos in QGIS and specify the transparent pixels,
does the collar between the orthophotos disappear?
</pre>
</blockquote>
when I manually add to the Transparent Pixel List, then it works (in
Qgis), so how can I update all the ortho images to reflect their nodata
values?<br>
(meaning, using nearblack should/would work, but my nearblack crashes)<br>
<br>
<img src="cid:part1.01000201.06040906@geograph.co.za" alt=""><br>
<br>
<br>
<br>
Thanks,<br>
Zoltan<br>
<br>
<pre class="moz-signature" cols="72">--
===========================================
Zoltan Szecsei PrGISc [PGP0031]
Geograph (Pty) Ltd.
P.O. Box 7, Muizenberg 7950, South Africa.
65 Main Road, Muizenberg 7945
Western Cape, South Africa.
34° 6'16.35"S 18°28'5.62"E
Tel: +27-21-7884897 Mobile: +27-83-6004028
Fax: +27-86-6115323 <a class="moz-txt-link-abbreviated" href="http://www.geograph.co.za">www.geograph.co.za</a>
===========================================</pre>
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