OCR accuracy depends heavily on source quality, not only the tool.
2
分辨率
Use at least 300 DPI to preserve character boundaries.
3
对比度
Keep text/background contrast clear for stable recognition.
4
方向校正
Correct page orientation before running OCR.
5
噪点控制
Reduce scan noise to avoid false character detection.
6
结果校验
After extraction, validate numbers, names, and email addresses first.