RStoolbox (version 0.1.1)

encodeQA: Encode QA Conditions to Integers

Description

Intended for use with the Landsat 8 OLI QA band. Converts pixel quality flags from human readable to integer, which can then be used to subset the QA image. Please be aware of the default settings which differ for different parameters.

Usage

encodeQA(fill = "no", droppedFrame = "no", terrainOcclusion = "no",
  water = "all", snow = "all", cirrus = "all", cloud = "all")

Arguments

fill

Designated fill. Options: c("yes", "no", "all").

droppedFrame

Dropped frame. Options: c("yes", "no", "all").

terrainOcclusion

Terrain induced occlusion. Options: c("yes", "no", "all").

water

Water confidence. Options: c("na", "low", "med", "high", "all").

snow

Snow / ice confidence. Options: c("na", "low", "med", "high", "all").

cirrus

Cirrus confidence. Options: c("na", "low", "med", "high", "all").

cloud

Cloud confidence. Options: c("na", "low", "med", "high", "all").

Value

• Returns the Integer value for the QA values

References

http://landsat.usgs.gov/L8QualityAssessmentBand.php

Examples

encodeQA(snow = "low", cirrus = c("med", "high"), cloud = "high")