In order to quantify and comprehensively characterize the sharpness qualities of inkjet print images,the slanted-edge measurement methods of the spatial frequency response(SFR)of prints in the ISO/TS 15311-1:2020 and ISO/IEC TS 29112:2018 standards was analyzed in this study.Two spatial frequency indexes that characterized the sharpness and resolution of print images,were extracted,and two quality factor indexes were set to distinguish the objective and subjective spatial details of printed images,which realized a comprehensive characterization of the clarity of the printed images.Correlation analysis showed that fuzziness has a greater impact on image sharpness.The experimental results showed that the extracted indexes can correctly characterize the quality of paper printed images.This study can provide reference for the process of materials development and process optimization in related industries.
Inkjet printingSpatial Frequency ResponseSlanted-edge