The Rosette pattern forms exclusively in the AM Screening (amplitude-modulated halftoning) technique because, in this method, the dots are regularly positioned on an angular grid (based on the Screen Angle). In contrast, FM Screening (frequency-modulated) distributes dots completely randomly without a fixed grid or angle, thereby consciously eliminating the Rosette pattern and simultaneously resolving the Moire problem.

The elimination of the Rosette in FM Screening does not signify a reduction in quality; rather, it indicates a change in the quality metric. The primary advantage of FM is its ability to reproduce very fine details and textures without the risk of Moire. However, transitioning from AM Screening to FM requires tighter control over Dot Gain and ink management. This strategic decision is made based on the technical needs of each Halftone contract and the available equipment in your Industrial Printing Process.