Processed CAPTCHA images with Python and used both EasyOCR and PaddleOCR for combined recognition after appropriate preprocessing
Python、OpenCV、paddleOCR、easyOCR、電腦視覺
graph TD
subgraph Preprocessing
direction LR
C1[Original Image]
C2[Adjust Contrast]
C3[Edge-preserving Denoising]
C4[Grayscale]
C5[Threshold]
C6[Opening Operation]
C7[Closing Operation]
end
subgraph OCR
D1[PaddleOCR Recognition]
D2[PaddleOCR Recognition]
end
C1 --> OCR
C2 --> OCR
C3 --> OCR
C4 --> OCR
C5 --> OCR
C6 --> OCR
C7 --> OCR
C1 --> C2
C2 --> C3
C3 --> C4
C4 --> C5
C5 --> C6
C6 --> C7
OCR --> F[Postprocess Results: Merge Results]
F --> G[Return Predicted CAPTCHA Text]