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对比度.
对比度是画面黑与白的比值,也就是从黑到白的渐变层次。比值越大,从黑到白的渐变层次就越多,从而色彩表现越丰富。对比度对视觉效果的影响非常关键,一般来说对比度越大,图案越清晰醒目,色彩也越鲜明艳丽;而对比度小,则会让整个画面都灰蒙蒙的。
高对比度对于图片的清晰度、细节表现、灰度层次表现都有很大帮助。在一些黑白反差较大的文本显示、CAD显示和黑白照片显示等方面,高对比度产品在黑白反差、清晰度、完整性等方面都具有优势。相对而言,在色彩层次方面,高对比度对图案的影响并不明显。
对比度对于动态影片显示效果影响要更大一些,由于动态图片中明暗转换比较快,对比度越高,人的眼睛越容易分辨出这样的转换过程。对比度高的产品在一些暗部场景中的细节表现、清晰度和高速运动物体表现上优势更加明显。
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