{'fraction_non_alphanumeric': 0.015527950310559006, 'fraction_numerical': 0.0, 'mean_word_length': 5.201923076923077, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Color printer calibration technique based on human visual perception

In digital printing, most halftoning techniques assume that printed color dots are square and dot gain is zero, However, most color printers produce roughly circular dots and dot gain is not zero. Thus, dots are overlapped by adjacent dots, and they occupy adjacent space that should be empty space. These facts cause significant image distortion on the reproduced image. We propose a novel color printer calibration technique based on the human visual perception characteristic. Experimental results show that the proposed technique is useful and valid for a color printer.