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Digital Image Processing with Python

目前在電腦視覺中大多應用都是使用深度學習,但我認為對於一個研究電腦視覺領域的人來說,且現在許多科技廠仍會使用此技術進行檢測,所以傳統影像處理技還是非常重要的。 雖然在大學和碩士期間也會用影像處理技術對影像做處理,但也只是非常簡單的處理,如二值化、灰階、旋轉等。不過,除了這些,影像處理還有非常多的技術可以學,因此從這篇是我學好影像處理和打好基礎的第一篇。 這是我的學習紀錄,所有範例都是跟著數位影像處理這本書的教學及查詢網路上的資料,並使用我自己的方法整理,以及加上自己的看法。

詳細筆記請參考hackmd

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Course outline

Section #1 Basics

  • Reading Images and Video
  • Resizing and Rescaling Images and Video Frames
  • Drawing Shapes and Placing text on images
  • 5 Essential Methods in OpenCV
  • Image Transformations
  • Contour Detection
  • Switching between Colour Spaces (RGB, BGR, Grayscale, HSV and Lab)
  • Splitting and Merging Colour Channels
  • Blurring
  • BITWISE operations
  • Masking
  • Histogram Computation
  • Thresholding/Binarizing Images
  • Advanced Edge Detection

Section #2 Faces

  • Face Detection using Haar Cascades
  • Face Recognition using OpenCV's LBPHFaceRecognizer algorithm

Section #3 Simpsons

  • Building a Deep Computer Vision model to classify between the characters in Simpsons
  • Data is collected from Kaggle
  • Use Kaggle Notebook to train the model

Section #4 License plate detection and recogniton

  • Detection using opencv
  • Recognition using EasyOCR

Credits

參考資料:Medium, Youtube, 數位影像處理

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