Bitwise Not (Spatial Analyst)

Available with Spatial Analyst license.

Available with Image Analyst license.

Summary

Performs a Bitwise Not (complement) operation on the binary value of an input raster.

Learn more about how Bitwise Math tools work

Illustration

Bitwise Not illustration
OutRas = BitwiseNot(InRas1)

Usage

  • If an input is floating point, the values are converted to integer values through truncation before the bitwise operation is performed.

  • In bitwise operations the following are true:

    • Binary values are stored in two's complement.
    • The tools work on 32-bit integers.
    • The leftmost bit position is reserved for the sign (positive or negative) of the value. If the integer is positive, the bit position is 0; if it's negative, the bit position is 1.

  • The Bitwise Not operation treats the sign bit as it would any other bit. If the input for a cell location is negative, the output is negative; if the input is positive, the output is positive.

  • If the input is a multiband raster, the output will be a multiband raster. The tool will perform the operation on each band in the input.

  • In ArcPy, if the input is a multidimensional raster, all slices from all variables will be processed, and the output will be a multidimensional raster.

  • See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool.

Parameters

LabelExplanationData Type
Input raster or constant value

The input raster on which to perform the Bitwise Not (complement) operation.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer; Constant

Return Value

LabelExplanationData Type
Output raster

The output raster.

The cell values are the result of a Bitwise Not operation on the input.

Raster

BitwiseNot(in_raster_or_constant)
NameExplanationData Type
in_raster_or_constant

The input raster on which to perform the Bitwise Not (complement) operation.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer; Constant

Return Value

NameExplanationData Type
out_raster

The output raster.

The cell values are the result of a Bitwise Not operation on the input.

Raster

Code sample

BitwiseNot example 1 (Python window)

This example performs a Bitwise Not operation on an input Grid raster.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outBitwiseNot = BitwiseNot("degs")
outBitwiseNot.save("C:/sapyexamples/output/outbitn")
BitwiseNot example 2 (stand-alone script)

This example performs a Bitwise Not operation on an input Grid raster.

# Name: BitwiseNot_Ex_02.py
# Description: Performs a Bitwise Complement operation on the
#              binary value of an input raster
# Requirements: Spatial Analyst Extension

# Import system modules
import arcpy
from arcpy import env
from arcpy.sa import *

# Set environment settings
env.workspace = "C:/sapyexamples/data"

# Set local variables
inRaster = "degs"

# Execute BitwiseNot
outBitwiseNot = BitwiseNot(inRaster)

# Save the output 
outBitwiseNot.save("C:/sapyexamples/output/outbitnot")

Licensing information

  • Basic: Requires Spatial Analyst or Image Analyst
  • Standard: Requires Spatial Analyst or Image Analyst
  • Advanced: Requires Spatial Analyst or Image Analyst

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