Source Extraction ("Image Segmentation")
Source Extraction is also known by the names "image segmentation" and "image labeling" in various applications. This procedure identifies, or detects individual objects or image features in one or more images and computes some 40 properties for each detection. Source Extraction provides numerous options for controlling the detection and processing of information. The procedure may also be used to detect objects or features that are common to an image set or that vary among the images. Source extraction is handled using the Source Extraction package in Mira Pro x64.
This tutorial, from the Mira Pro x64 User's Guide, shows how use the Source Extraction package to detect and measure the properties of sources in images. The Source Extraction package is accessed using the Measure > Extract Sources command for an Image Window. The Source Extraction Package is immensely powerful and has a great number of important and varied applications. In this tutorial it is used simply to examine the FWHM values for many stars in a small region of an astronomical image. A quick overview of the extraction procedure is described in the User's Guide under "Running the Source Extraction Pipeline."