コントラスト比

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別名: contrast

暗いモジュールと明るいモジュールの明るさの差です。ISO 18004は最低37.5%の反射率差を要求します。確実なスキャンのため、暗いモジュールは反射率38%未満、明るいモジュールは75.5%超であるべきとされます。

関連用語

…or white (0) bit. This step is sensitive to print quality, contrast, and module size. Step 5: Format and Version Reading The…

…testing methodology for print quality : decode, symbol contrast, modulation, fixed pattern damage, and other quality…

…design to the platform's brand colours (while maintaining contrast ) Common Placements Product packaging and labels Business…

…physical area at EC Level M is borderline. Fading and Low Contrast : Gradual fading reduces the contrast between dark and…

…logo to separate it from data modules Use a simple, high-contrast logo — detailed logos at small sizes are unclear Test with…

…If all levels fail, the issue is likely print quality , contrast, or quiet zone violation If one scanner fails but others…

…: Can the symbol be decoded? Binary pass/fail. Symbol Contrast : The difference between the darkest and lightest modules.…

…scan failure in design-heavy applications. Step 3: Measure Contrast - Hold the printed code under good lighting and check…