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How to extract some values (eg: 2,7,42,132) from a raster and form a new raster file?

I need a file with specified values as 1 and the rest 0.

1 Answer 1

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You could use something like the following in the Raster Calculator:

("raster@1" = 2) + ("raster@1" = 7) + ("raster@1" = 42) + ("raster@1" = 132)
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    this works, gives raster values of output 1(selected values) or 0(other). You can then change the symbology and transparency adding "0" to Additional no data values so they don't show if you want.
    – Louis
    May 5, 2017 at 14:37

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