Table 1
Parameter settings of the perceptual difference quantification model.
| Parameter category | Feature dimension | Parameter description | Numerical range | Weight assignment |
|---|---|---|---|---|
| Color Domain | Hue Distribution | 32-level quantization in Lab color space | [0,1] | 0.25 |
| Saturation Gradient | Standard deviation of gradient in the ab chromatic plane | [0.1,2.0] | 0.15 | |
| Morphological Domain | Contour Curvature | Mean curvature based on Canny edge detection | [0.5, 5.0] (pixel–1) | 0.3 |
| Semantic Domain | Cultural Symbols | Cosine similarity threshold of word vectors | [0.6, 0.9] | 0.18 |
| Emotional Association | Matching the intensity of the BERT sentiment dictionary | [0, 1] | 0.12 |
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