Cognex's VisionPro software provides a fast and accurate way to count Mini LEDs before packaging. Operators can easily train the software to identify, locate and count patterns of extremely small LED die. The pattern counting tool looks for grayscale pixel value patterns defined by features. Regardless of how pixel intensities vary between images, it can quickly and accurately find the patterns. Each time it runs, it can locate and identify thousands of die, even patterns as small as 4x4 pixels. The control system stores manufacturing history records and results tied to barcoded labels on finished packages.