; MOV DS, r32 (protected mode)
输出：[null,1,1,1,2,1,4,6]
，更多细节参见91视频
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Greyscale rendering is deliberate. Gupta et al. (2023, “GlyphNet”) found that greyscale outperforms colour for glyph comparison because extreme contrast preserves edge detail through resize. No image augmentation either: flipping or rotating characters creates unrealistic glyphs.