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Help Movies: Masking Pixels

II. Analyzing Images
Title: Masking Pixels
Type: Spectral and Spatial
Time: 5 min 55 sec

Essential Question: How can you use the image analysis software to isolate specific colors, and calculate the proportion of the selected colors in a digital image?

Description: The procedure known as masking is used to identify and isolate specific colors in digital images. The example shows how to use masks to isolate and calculate the area of a leaf that has a specific color characteristic. Other applications of masking might be with a satellite image, to calculate the proportion of water in a scene, or the proportion of forests and parks or of roads in a scene.

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Last Updated: April 14, 2015