An overview of the Image Analysis geoprocessing functions

Disponible con licencia de Image Analyst.

The ArcPy Image Analysis module provides a set of image analysis and modeling geoprocessing functions for both raster (cell-based) and feature (vector) data.

The capabilities of the ArcPy Image Analysis module are grouped into categories of related functionality. Knowing the categories will help you identify which geoprocessing function to use. The table at the end of this section lists all the available analytical categories with a description of the capabilities offered by the geoprocessing functions in each.

For most geoprocessing functions that generate a raster output, the output is a temporary raster object on disk. To make it permanent, you can call the raster object's save method. Based on the workspace and the extension specified, the output format will vary; see Output raster formats and names for more information.

The geoprocessing functions in the ArcPy Image Analysis module require the ArcGIS Image Analyst extension.

Image Analysis geoprocessing functions

The functional categories of the ArcPy Image Analysis module are described below.

Image Analysis geoprocessing functional categories

Geoprocessing functional category	Description
Change Detection	The Change Detection geoprocessing function category contains a function for extracting change information from multiple rasters over time. Additional capabilities for detecting change across a time series of images are available in the Multidimensional Analysis geoprocessing functions.
Classification and Pattern Recognition	The geoprocessing functions in the Classification and Pattern Recognition category can be used to perform classification and regression analysis workflows, including accuracy assessment. Capabilities include multispectral image segmentation, training sample generation and evaluation, pixel and object-oriented machine learning classification, and quantitative accuracy assessment of results.
Deep learning	The Deep Learning geoprocessing functions allow you to train a deep learning model, detect specific features in an image, classify pixels in a raster dataset.
Extraction	The Extraction geoprocessing functions allow you to extract a subset of pixels from a raster by the pixels' attributes or their spatial location.
Map Algebra	Map Algebra is a way to perform spatial analysis by creating expressions in an algebraic language. With the Raster Calculator geoprocessing function, you can create and run Map Algebra expressions that output a raster dataset.
Math (general)	Las funciones de geoprocesamiento de matemática general aplican una función matemática a la entrada. Estas funciones de geoprocesamiento se dividen en varias categorías. Las funciones de geoprocesamiento realizan operaciones matemáticas básicas, como adición y multiplicación. Existen funciones de geoprocesamiento que realizan varios tipos de operaciones de potenciación, incluidas las operaciones exponenciales y logarítmicas además de las operaciones de potencia básicas. Las funciones de geoprocesamiento restantes se utilizan para la conversión de signos o para la conversión entre tipos de datos enteros y de punto flotante.
Math: Conditional	Las funciones de geoprocesamiento condicional permiten controlar los valores de salida según las condiciones establecidas en los valores de entrada. Las condiciones que pueden aplicarse son de dos tipos, ya sean consultas sobre los atributos o una condición basada en la posición de la declaración condicional en una lista.
Math: Logical	Las funciones de geoprocesamiento de matemática lógica evalúan los valores de las entradas y determinan los valores de salida según la lógica booleana. Las funciones de geoprocesamiento se agrupan en cuatro categorías principales: Booleana, Combinatoria, Lógica y Relacional.
Math: Trigonometric	Las funciones de geoprocesamiento de matemática trigonométrica realizan varios cálculos trigonométricos en los valores en un ráster de entrada.
Motion Imagery	The Motion Imagery geoprocessing functions can be used for managing, processing, and analyzing motion imagery, including full-motion video data.
Multidimensional Analysis	The Multidimensional Analysis geoprocessing functions allow you to perform various multidimensional analyses on scientific raster data across multiple variables and dimensions.
Overlay	The Overlay geoprocessing functions can be used to weight and overlay several rasters to create a single summary raster.
Statistical	The Statistical geoprocessing functions perform statistical operations on raster data.