Re: [問題] 請問這張圖的意義

[strikeX (無法無天)]

※ 引述《aloke (風格中立。)》之銘言：
: http://www.dpreview.com/reviews/samples/rescharts/oly_e1.jpg
: 這是 E1 的..
: 想請問這張圖的意義是什麼？為什麼測試的時候大家都拍這張圖？

  幾個 link 給你參考參考

  http://www.digital.idv.tw/Classroom/MROH-CLASS/oh16/index-16.htm

  http://www.dcview.com.tw/review/lab/index.htm

  主要的組成元件如下
  Test chart elements include:
- Black border for defining active area
- Center dual frequency zone plate for focusing purposes
- 100-600 LW/PH and 500-2000 LW/PH hyperbolic wedges for measuring
  center and corner, horizontal and vertical visual resolution.
- 100-1000 line square wave sweeps for measuring vertical and
  horizontal limiting resolution
- Slightly slanted (@ 5 degrees) large black bars for measuring
  center horizontal and vertical SFR
- 45 degree diagonal black square for measuring diagonal SFR
- Slightly slanted small black squares for measuring vertical and
  horizontal SFR at extreme corners of field
- Slightly slanted H-shaped bars for SFR at far sides of field
- Slightly slanted square wave bursts for horizontal and vertical
  aliasing ratios
- Slightly slanted thin long vertical line and horizontal line for
  checking scan linearity
- 100-1000 LW/PH short black lines for vertical and horizontal pulse
  responses
- Circle with cross and X for observation of scanning non-linearities
- Checkerboard patterns for image compression artifacts



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