Frequently Asked Engineering Questions

Standard QR codes rely on uniform, high-contrast, diffuse matte surfaces with finder squares. When applied to specular aluminum blister foil, ambient factory lighting or mobile flash creates intense pinpoint specular hotspots that blow out the image sensor. Furthermore, when patients push pills through the foil, the punctured hole tears through critical timing or alignment tracks, making standard 2D barcodes completely unreadable. N3CODE solves this by employing CLAHE (Contrast-Limited Adaptive Histogram Equalization) and reserving up to 32% of the symbol capacity for non-binary Galois Field GF(2⁸) Reed-Solomon parity recovery.