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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:
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Enter (x, y, w, h) into the four textboxes in Figure 17.2;
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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:
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Click the �Key� button, in the �.\input_auto_track� directory, select image �IMAGE002.jpg�;
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Enter (200, 30, 180, 180) to the segment textboxes in Figure 17.2.
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Click the �Segment� button and the segment is marked by a square in Figure 17.2..
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