17.1  Key Segment
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17.1  Key Segment 
17.2  Menu 
17.3 API 
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17.7 Results 
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17.1   Key Segment Specification

A path, such as “c:\abc\xyz.jpg”, specifies the key image. The key segment is specified by a path and (x, y, w, h). Here (x, y) is the coordinate of the upper left corner, w is the width, and h is the height.

An image segment is specified via its pixel values. For example, let an image be 256x256, then (0, 0, 128, 128) specifies a quarter of the image located in the upper left corner.

Figure 17.2 shows how to specify an image segment in 2 steps:

  •    Enter (x, y, w, h) into the four textboxes in Figure 17.2;
  •    Click the Segment button to enter (x, y, w, h) to the software.

Figure 17.2   Specify an Image Segment.


Example. Specifying a Key Segment:

  •    Click the “Key” button, in the “.\input_auto_track” directory, select image “IMAGE002.jpg”;
  •    Enter (200, 30, 180, 180) to the segment textboxes in Figure 17.2.
  •    Click the “Segment” button and the segment is marked by a square in Figure 17.2..


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