Method for evaluating quality of printer image halftone outputting algorithm

• Main Authors: SHEN CHUNHUI, YI YAOHUA, SU HAI, FENG LIYU, YUAN YUAN, CHEN CONGMEI, LIU JUHUA, CHEN LIANG, ZHOU LUOLAN, YANG HUIFANG
• Format: Patent
• Language: Chinese; English
• Published: 19.02.2014
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention discloses a method for evaluating the quality of a printer image halftone outputting algorithm. The method comprises the steps of converting an output halftone image measurement value into a Munsell lightness value, performing linear fitting on the Munsell lightness value and a corresponding gray value, using four indexes including error term quadratic sum, root-mean-square errors, regression coefficient and adjusted regression coefficient to perform unitary linear recursive analysis, and accordingly analyzing the robustness of a halftone algorithm to the laser printer non-linear characteristic. By adopting the method, the purpose of evaluating the robustness of the halftone algorithm to the laser printer non-linear characteristic is achieved, and a basis is provided for further modification of the halftone algorithm and establishment of a printer model.