{'fraction_non_alphanumeric': 0.030894308943089432, 'fraction_numerical': 0.0, 'mean_word_length': 6.247058823529412, '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}}
Specifying colour appearance

The basic subjective attributes of colour perception are brightness, hue, and colourfulness; but, for coloured objects, the derived attributes of saturation, lightness, and perceived chroma, can also be important. Objective measures that correlate approximately with some of these subjective attributes are luminance, dominant wavelength, purity, and luminance factor. These psychophysical measures, however, are related to the subjective attributes in very non-uniform ways, and, to avoid this disadvantage, psychometric measures have been devised that have a more uniform correlation