AnsweredAssumed Answered

Clip a raster leaving out 'no data'

Question asked by Zelada on Jul 20, 2018
Latest reply on Jul 20, 2018 by Zelada

Hello, 

 

I have a big raster A (9000 x 2000 pixels) and I want to clip out a small portion of it B (500 x 500 pixels).

When I do this using EXTRACT BY MASK, the result raster C is still 9000 x 2000 pixels with only the small B portion containing data and the rest with 'no data' cells.

 

So I can 'hide' the border and it's fine if all I wanted was to make maps. However, I am looking to export the matrix into Matlab for further processing, and this issue not only makes the file unnecessarily bigger but also when exporting as a .tif it adds a white border to it.

 

I've seen this issue asked in many forums, since many years, but I can't find a definitive answer (or at least one that works at all for me).

 

Could you please help?

 

Many thanks

 

Ame

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