PapEye Graininess for Windows is a user-friendly software designed to help paper and board professionals assess print graininess according to the ISO/IEC 24790 standard. Using a standard scanner, you can quickly analyze samples and gain insights into your print quality.
The application is based on computational image analysis of scanned samples. The software enables an objective evaluation of graininess in print and provides a single value for the graininess, with good correlation with human evaluation.
Example of mottling and graininess scales inside the analysis algorithm. The graininess calculation is similar to mottling calculation, but has finer detail and is calculated from high-resolution 1200 DPI images.
Graininess affects the perceived smoothness and uniformity of printed areas. Even when average print density is correct, excessive graininess can reduce visual quality and customer acceptance. Objective graininess analysis helps paper and board professionals compare samples, evaluate trials, and communicate appearance differences using numerical values instead of subjective descriptions.
The software is a standalone executable and licenses are sold as a permanent license for a single PC. List of recommended scanners is available from Tapio Measurement Technologies.