Homework 7

Thinning

Description

    You can download lena.bmp here !
    You can also download OpenCV C++ template for Visual Studio 2015 here ! (Warning: If you use this template, please don't upload the whole project. Only the source codes should be submitted. e.g. main.cpp, funtion.h )

  • Write a program which does thinning on a downsampled image (lena.bmp).

Announcement

  • Downsampling Lena from 512x512 to 64x64:
      Binarize the benchmark image lena as in HW2, then using 8x8 blocks as a unit, take the topmost-left pixel as the downsampled data.
  • You have to use 4-connected neighborhood detection.
  • You can use any programing language to implement homework, however, you'll get zero point if you just call existing library.
  • More detail about this homework. Download here-->PPT|PDF

FAQ

  • Q1: 作法要以上課PPT還是這裡提供的PPT為主？
      作業請參考Announcement(此網頁)提供的PPT為主。
  • Q2: 有規定報告的頁數嗎?
      沒有，但建議不要超過4頁。報告內容簡短扼要即可。
  • Q3: 請問之前作業實作過的函式，以後作業可以直接 call 現成函式嗎?
      可以哦，如果是之前作業手刻過的函式，之後用到可以任意 call function.
  • Q4: 投影片第109頁似乎不太正確?
      正確結果請參考外面的動圖。
  • Q5: 結果需要像外面的動圖，還是最後Thinning完成的結果?
      Thinning完成的結果圖就可以了。
  • Q6: 先Binarize還是先Downsample?
      都可以。
  • Q7: Step1 是要用上課投影片的 marked-interior/border-pixel operator，還是使用 Yokoi，來產生 Pair relationship operator 所需要的圖
      照此網頁提供的ppt所寫，用 Yokoi
  • Q8: Padding 有限定使用哪種方式嗎?
      補什麼都可以