# Bitwise XOr (Spatial Analyst)

Available with Spatial Analyst license.

Available with Image Analyst license.

## Summary

Performs a Bitwise eXclusive Or operation on the binary values of two input rasters.

Learn more about how Bitwise Math tools work

## Usage

• Two inputs are necessary for this bitwise operation to take place.

• The order of inputs is irrelevant for this tool.

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

• In bitwise operations:

• 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 XOr operation treats the sign bit as it would any other bit. If one or both inputs for a cell location are negative, the output is negative; if both inputs are positive, the output is positive.

• If both inputs are single band rasters, or one of the inputs is a constant, the output will be a single band raster.

• If both inputs are multiband rasters, or one of the inputs is a constant, the output will be a multiband raster. The number of bands in each multiband input must be the same.

• The tool will perform the operation on each band from one input against the corresponding band from the other input. If one of the inputs is a multiband raster and the other input is a constant, the tool will perform the operation against the constant value for each band in the multiband input.

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

## Syntax

`BitwiseXOr(in_raster_or_constant1, in_raster_or_constant2)`
 Parameter Explanation Data Type in_raster_or_constant1 The first input to use in this bitwise 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 in_raster_or_constant2 The second input to use in this bitwise 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

 Name Explanation Data Type out_raster The output raster.The cell values are the result of a Bitwise eXclusive Or operation on the two inputs. Raster

## Code sample

BitwiseXOr example 1 (Python window)

This example performs a Bitwise XOr operation on two Grid rasters.

``````import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outBitwiseXOr = BitwiseXOr("degs", "negs")
outBitwiseXOr.save("C:/sapyexamples/output/outbitxor")``````
BitwiseXOr example 2 (stand-alone script)

This example performs a Bitwise XOr operation on two Grid rasters and outputs the result as an IMG raster.

``````# Name: BitwiseXOr_Ex_02.py
# Description: Performs a Bitwise XOr operation on the binary values
#              of two input rasters
# 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
inRaster1 = "degs"
inRaster2 = "negs"

# Execute BitwiseXOr
outBitwiseXOr = BitwiseXOr(inRaster1, inRaster2)

# Save the output
outBitwiseXOr.save("C:/sapyexamples/output/outbitwisexor.img")``````

## Licensing information

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