原盘质量不错,原生分辨率为 720p, 主要问题是部分画面在噪点层下有色带,以及原生线条存在锯齿。我们对线条进行了逆向拉伸重构,并在原生分辨率下进行去锯齿处理。我们也利用了原盘噪点的特性去减少去色带处理损伤纹理的副作用,辅以常规的补偿性锐化和自适应降噪步骤。
The source has a 720p native resolution, and the image quality is decent. The main issues are the colour bands underneath the noise layer, and even the native 720p lines have some aliasing. We performed descaling and reconstruction to the lines, and applied anti-aliasing at the native resolution. We then exploited the characteristics of the noise to reduce the texture damage caused by de-banding. PP was completed by the routine contra-sharpening and adaptive denoising.