<div dir="auto">Yes. I was about to suggest that. On the layer properties, in the transparency tab, check what you have in the no data option.<div dir="auto"><br></div><div dir="auto">Also, make sure that in the clip tool, the advanced options, for the no data value, you don't use a value that is a valid value on the image.</div><div dir="auto"><br></div><div dir="auto">Alexandre Neto</div><div dir="auto"><a href="http://www.qcooperative.net">www.qcooperative.net</a></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">A Dom, 4/08/2019, 10:05, Luigi Pirelli <<a href="mailto:luipir@gmail.com" target="_blank" rel="noreferrer">luipir@gmail.com</a>> escreveu:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Check no data value?<br><br>On Saturday, 3 August 2019, Carolina Rey <<a href="mailto:carredy@hotmail.com" rel="noreferrer noreferrer" target="_blank">carredy@hotmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">




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<span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:12pt">Dear all,</span><br>
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I have tried to work with masks with: <b>Raster > Extraction > Clip raster by mask layer</b> but QGIS <a href="https://de.pons.com/%C3%BCbersetzung/englisch-deutsch/deteriorate" style="color:rgb(51,51,51);font-family:Arial,"Arial Unicode MS",sans-serif;font-size:14px;background-color:rgb(255,255,255)" rel="noreferrer noreferrer" target="_blank">deteriorate</a>s
 the quality of the clipped raster to a high extend. Is it possible that the algorithm has mistakes? Or is there something to change before applying this function?</div>
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Thank you very much</div>
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Carolina</div>
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Libre de virus. <a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" style="color:#4453ea" rel="noreferrer noreferrer" target="_blank">
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</blockquote><br><br>-- <br><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><br></div><div>Luigi Pirelli<br><br>**************************************************************************************************<br>* LinkedIn: <a href="https://www.linkedin.com/in/luigipirelli" rel="noreferrer noreferrer" target="_blank">https://www.linkedin.com/in/luigipirelli</a><br>* Stackexchange: <a href="http://gis.stackexchange.com/users/19667/luigi-pirelli" rel="noreferrer noreferrer" target="_blank">http://gis.stackexchange.com/users/19667/luigi-pirelli</a><br>* GitHub: <a href="https://github.com/luipir" rel="noreferrer noreferrer" target="_blank">https://github.com/luipir</a><br>* Book: <a href="https://www.packtpub.com/eu/application-development/mastering-geospatial-development-qgis-3x-third-edition" rel="noreferrer noreferrer" target="_blank">Mastering QGIS3 - 3rd Edition</a></div><div>* Hire a team: <a href="http://www.qcooperative.net" rel="noreferrer noreferrer" target="_blank">http://www.qcooperative.net</a><br>**************************************************************************************************</div></div></div></div></div></div></div></div><br>
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