台科選課系統/校務系統 驗證碼辨識
對應選課系統及校務(學生)系統
2份辨識基本上是一份檔案，只差在crop不同，還有需要resize
後續使用裝置是行動平台，附上tflite
版本為tensorflow 2.1.0
選課系統Captcha圖片
simple 300~500張並沒有差別太多accuracy 0.88
crop((5, 3, 66, 17)) 裁切61x14
校務系統Captcha圖片
simple 200張accuracy 0.99
可直接OCR，基本維持9成
crop((10, 10, 124, 36)) 裁切114x26
resize((57,13)) resize一半
這份code沒有爬蟲的部分
校務系統可以配合OCR來製作dataset
選課系統PIL簡單處理後OCR後也能到6~7成
給要做生成器的朋友
圖片參數:
font:arial bold italic
font size: 15pt
可以嘗試使用這範圍的文字漸層
(25, 0, 200)～(100, 10, 70)
參考:
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