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102 CHAPTER 5. PROGRAM EXAMPLES<br />
Figure 5.8: Annual rings of a tree.<br />
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5.5 Bonding<br />
File name: ÐкÚ<br />
This is the first example in the field of quality inspection. The task is to detect bonding balls.<br />
Figure 5.9 shows two typical microscope images of a die.<br />
The die border and the bonding wires appear dark. Thus you may apply a thresholding. Since<br />
the background is also dark we have to extract the die before doing the segmentation. The die<br />
is rather bright. Thus we can select the pixels by their gray values.<br />
<strong>HDevelop</strong> / 2000-11-16