feat: 简化版网格划分算法，适合课堂讲解

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算法流程（仅划线，不分割）：
1. 彩色图转灰度图
2. 横/纵轴投影：每列/行灰度值求和
3. 阈值 X = (max-min) × 10%
4. 曲线减去 X，正=斑点，负=空隙
5. 过零点配对，中点即划线位置

与原版误差为0，代码带详细中文注释。

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刘航宇

2026-05-06 20:21:19 +08:00

parent b8a8ff2bc6

commit ad8e5041f2

2 changed files with 189 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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results_simple/gridding_simple.png

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