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I am using QGIS 2.10 Pisa to georeference geophysical survey information.

When I import data I have black pixels around meaningful part of the image which I remove by setting the transparency to zero. When I do this the black pixels in my geophysical image disappear as well.

Does anyone have a solution for this?

closed as unclear what you're asking by underdark Nov 30 '15 at 19:29

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • why do you need to get rid of black pixels around image? – Maxim Dubinin Nov 29 '15 at 13:12
  • What kind of image ? – gene Nov 29 '15 at 14:11
  • what are the value of the black pixels? (-9999 or something?) – fluidmotion Nov 29 '15 at 20:15
  • Search information about alpha channel or mask band. – user30184 Nov 29 '15 at 20:16

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