原盘制作质量一般,作画精度为720p,整体画风柔和、线条鲜明。 画面的主要问题为强烈的色带,在黄昏深夜等高反差场景尤其明显;而制作方加入的噪点,非但没有起到遮盖色带的作用,反而让纹理显得肮脏。 我们针对修复了拉伸算法造成的线条瑕疵,提高了去色带处理的强度,并移除了大部分噪点。
The source has an average picture quality and a native resolution at 720p. Its art style features a blending of sharp, dark line art with softer textures. However, strong color banding is prevalent among scenes with high contrast (e.g. dawn and night scenes). While constant film grain was added in Blu-ray production, not only did it fail to mitigate color banding issues, but it also caused the textures to look unclean, which is undesirable. During post-processing, we adaptively repaired edge artifacts introduced by upscaling, increased the strength of debanding filters, and removed most of the film grain.