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The Wringer 測試圖卡

The Wringer 測試圖卡

The Wringer

  • Used to examine chrominance resolution
  • Segmented zone plates reveal diagonal resolution and aliasing artifacts
  • Each zone plate is divided into four quadrants, containing vertical, horizontal and diagonal components

This chart is designed for examining chrominance resolution. The Wringer reveals diagonal resolution and aliasing artefacts that are not typically seen using vertical and horizontal wedges. Since diagonal distortions are likely to be mirrored in both scanned dimensions, and to conserve space, . The 18 zone plate quadrants have spatial frequency sweeps from 200 to 1000 TV LPPH  – framing to half the chart’s width yields 100 to 500 TV LPPH

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