User`s guide

Feature Extraction
Note In this example, you segment the image using a thresholding
operation that performs best on the Cb channel of the Y’CbCr color space.
5 Use the Selector and Selector1 blocks to separate the Y’ (luminance) and
Cb (chrominance) components from the main signal.
The Selector block se parate s the Y’ component from the entire signal. Set
its block parameters as follows:
• Number of input dimensions =
3
• Index mode = Zero-based
• 1
– Index O ption =
Select all
• 2
– Index O ption =
Select all
• 3
– Index Option =
Index vector (dialog)
– In dex = 1
The Selec to r1 block separates the Cb component from the entire signal.
Set its block parameters as follows:
• Number of input dimensions =
3
• Index mode = Zero-based
• 1
– Index O ption =
Select all
• 2
– Index O ption =
Select all
• 3
– Index Option =
Index vector (dialog)
– In dex = 2
7-19