全金 4 原盘画质总体较好,线条锐利纹理清晰,但部分锐利线条边缘存在轻微锯齿和晕轮;平面暗处区域有轻微色带和噪点。针对这种情况,在预处理上针对性的对线条做了低强度的反锯齿和去晕轮,在平面区域做了去色带、自适应降噪及低频增强。最后使用中高码率 x265 参数进行压制。
The overall quality of the source is decent, with sharp lines and clear textures, but slight aliasing and haloing effects can be found near some sharp edges, and mild banding and noise in dark flat areas. To deal with these artifacts, we applied weak anti-aliasing and dehaloing to lines, and debanding, adaptive denoise and enhancement of low-frequency textures to the flat areas. Lastly, we encoded with relatively high bit-rate with x265.
感谢所有资源提供者 / Thank to all resource providers:
BD: 藤田五郎@U3-Project
CD: {metalim, bukuro}@TSDM