picture sharpness

Focus: adjusts picture sharpness

聚集：调整画面清晰度

When LCD scaler is processing, with limitation of algorithm itself, the quality of output image becomes worse, such as contrast decreased, edge blured, so it is necessary for scaler to add picture sharpness module to compensate.

在LCD定标器（Scaler）中实现缩放处理时，由于所采取算法的自身缺陷，会导致缩放后的图像对比度下降、边缘模糊，因此，有必要对图像进行锐化处理来进行图像质量补偿。

These parameters include picture sharpness, sensitivity, exposure index and noise.

这些性能参数包括：图像锐度、灵敏度与曝光指数，以及噪声。

In detail, there is reported on the achievable improvement of picture sharpness and signal-to-noise ratio as well as on the reduction of flicker effects and luminance-chrominance-interference.

本文还详细报导了图象尖锐度和信噪比，以及抑制闪烁效应和亮度色度串扰等方面可获得的改善。