Week 3

Information

The course for this week is about:

  • Image operations:
    • Enhancing grayscale images
    • Removing noise
    • Separating image parts with a mask
    • Detecting motion
    • Background correction
  • Introducing color images and color spaces
  • Segmenting and enhancing color images

PDF

Exercise

  • Using masks(05_Math-10)
  • Pratice some basic mask operations

  • Image enhancement(07_Color-25
  • Change the image appearance with HSV channels

Assignment

  • Using masks (05_Math-13)
  • Complete the scripts:
    Assignment/Using_masks/A/script.jls
    Assignment/Using_masks/B/script.jls
    Assignment/Using_masks/C/script.jls

    • A: Set all character values to zero
    • B: Add 80 to each background pixel
    • C: Set each background pixel to 128
  • Warp a license plate (06_Geometric-14)
  • Complete the script: Assignment/Warp_license_plate/script.jls

    • Threshold the license plate
    • Use FindCornersRectangle or FindCornersRectangleSq to locate the license plate corners
    • Warp the licenseplate
  • Yellow to blue (05_Color-34)
  • Complete the script: Assignment/Yellow_to_blue/script.jls

    • Change the licensplate color to blue
    • Tip: use a mask representing the license plate
    • Tip: Use the HSV spectrum

Video

Math and Geometric

Color basics

Color enhancement and segmentation


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