Two shades each of the halftone yellow and magenta are available depending on the printers 'requirement.
Technique of optical pseudo-colour encoding using halftone screens and its application to diagnosis of X-ray film for esophageal, gastric, mammary, bony lesions, etc., were reported.
The paper researches algorithms about halftone, stipple simulation, paint simulation and pen-and-ink simulation which are in the area of Non-Photorealistic Rending.
The article describes the characteristics and process of halftone colour effect by screen printing on fabric and elaborates in detail the processing methods and skills of each working procedure.
The point of the screening picture form, halftone dot uniformity and quality which will affect the printed picture of clothing.
Hard spot: halftone dots obtained by contact copying or direct laser scanning.
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