Pattern matching based on grayscale images is a well-established tool for alignment, gauging, and inspection applications. However, grayscale images may have contrast problems due to non-optimum lighting conditions. If the object and background have similar grayscale intensities, grayscale pattern matching may not give accurate results. On the other hand, color pattern matching searches for color patterns and can improve the matching results significantly when the color of an object provides greater object differentiation from the background.
An example for color pattern matching can be found from the following folder:
Figure 6.1 shows a screen-captured image of the example VI. As seen in the figure, color pattern matching is effectively used in finding matched patterns with distinctive colors and shapes in comparison with the background. In the same manner as in Chapter 5, color pattern matching consists of two main steps: (1) learning template information and (2) searching for patterns based on the template.
Upon running the example VI, select a Template (Figure 6.1) part for color pattern matching ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month, and much more.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
) part for color pattern matching ...