The zero values from Background or export area using Geotiffwrite

Hi all,

I read all of questions and answers before about Geotiffwrite. Please, I need help for exporting the data using with geotiffwrite. The export process adding zero values outside the area. I masked sea area but how can I get rid of these zero values (green color). Is there any Geotifftag for outside the area? Thanks in advance for all.

Fikret

Answer 1

[Fikret Dogru]

Diff(Diff==0)=NaN;Diff(Diff==1.70141e38)=NaN; helped that thanks anyway.