PP-OCR

Headlines · 1

1. 6d
   OCR Preprocessing Benchmark: Order and Strength Matter

   A first-hand benchmark tested 108 Tesseract preprocessing combinations on one English page and 60 macOS Vision combinations on one Chinese page. Deskewing and denoising helped Tesseract, but order and strength mattered: denoising before deskewing achieved 98.6–99.1 accuracy on tested salt-and-pepper cases, while a 9×9 median filter reduced English accuracy to 91.0. Otsu thresholding alone offered little improvement, and adaptive thresholding produced blank output under Gaussian noise in the tested configuration.

   掘金 · 人工智能 · 🔥 0

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