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.
This creates two distinct problems:，这一点在搜狗输入法2026中也有详细论述
Green screen effects without actual green screen，推荐阅读爱思助手下载最新版本获取更多信息
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