Rescale (Data Management)

Summary

Resizes a raster by the specified x and y scale factors.

Usage

• The output size is multiplied by the scale factor for both the x and y directions. The number of columns and rows stays the same in this process, but the cell size is multiplied by the scale factor.

• The scale factor must be positive.

• A scale factor greater than one means the image will be rescaled to a larger dimension, resulting in a larger extent because of a larger cell size.

• A scale factor less than one means the image will be rescaled to a smaller dimension, resulting in a smaller extent because of a smaller cell size.

• You can save the output to BIL, BIP, BMP, BSQ, DAT, Esri Grid, GIF, IMG, JPEG, JPEG 2000, PNG, TIFF, MRF, or CRF format, or any geodatabase raster dataset.

• When storing a raster dataset to a JPEG format file, a JPEG 2000 format file, or a geodatabase, you can specify a Compression Type value and a Compression Quality value in the geoprocessing environments.

Parameters

Dialog

Label	Explanation	Data Type
Input Raster	The input raster.	Mosaic Layer; Raster Layer
Output Raster Dataset	The output raster dataset. When storing the raster dataset in a file format, specify the file extension as follows: .bil—Esri BIL .bip—Esri BIP .bmp—BMP .bsq—Esri BSQ .dat—ENVI DAT .gif—GIF .img—ERDAS IMAGINE .jpg—JPEG .jp2—JPEG 2000 .png—PNG .tif—TIFF .mrf—MRF .crf—CRF No extension for Esri Grid When storing a raster dataset in a geodatabase, do not add a file extension to the name of the raster dataset. When storing a raster dataset to a JPEG format file, a JPEG 2000 format file, a TIFF format file, or a geodatabase, you can specify Compression Type and Compression Quality values in the geoprocessing environments.	Raster Dataset
X Scale Factor	The factor by which to scale the cell size in the x direction. The factor must be greater than zero.	Double
Y Scale Factor	The factor by which to scale the cell size in the y direction. The factor must be greater than zero.	Double

Python

arcpy.management.Rescale(in_raster, out_raster, x_scale, y_scale)

Name	Explanation	Data Type
in_raster	The input raster.	Mosaic Layer; Raster Layer
out_raster	The output raster dataset. When storing the raster dataset in a file format, specify the file extension as follows: .bil—Esri BIL .bip—Esri BIP .bmp—BMP .bsq—Esri BSQ .dat—ENVI DAT .gif—GIF .img—ERDAS IMAGINE .jpg—JPEG .jp2—JPEG 2000 .png—PNG .tif—TIFF .mrf—MRF .crf—CRF No extension for Esri Grid When storing a raster dataset in a geodatabase, do not add a file extension to the name of the raster dataset. When storing a raster dataset to a JPEG format file, a JPEG 2000 format file, a TIFF format file, or a geodatabase, you can specify Compression Type and Compression Quality values in the geoprocessing environments.	Raster Dataset
x_scale	The factor by which to scale the cell size in the x direction. The factor must be greater than zero.	Double
y_scale	The factor by which to scale the cell size in the y direction. The factor must be greater than zero.	Double

Code sample

Rescale example 1 (Python window)

This is a Python sample for the Rescale tool.

import arcpy
arcpy.Rescale_management("c:/data/image.tif", "c:/output/rescale.tif", "4", "4")

Rescale example 2 (stand-alone window)

This is a Python script sample for the Rescale tool.

##====================================
##Rescale
##Usage: Usage: Rescale_management in_raster out_raster x_scale y_scale
    
import arcpy

arcpy.env.workspace = r"C:/Workspace"

##Rescale a TIFF image by a factor of 4 in both directions
arcpy.Rescale_management("image.tif", "rescale.tif", "4", "4")

Environments

Compression, Current Workspace, Extent, Geographic Transformations, NoData, Output CONFIG Keyword, Output Coordinate System, Parallel Processing Factor, Pyramid, Raster Statistics, Resampling Method, Scratch Workspace, Snap Raster, Tile Size