Timeline for Why do animes have this "milky"-like texture?
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 23, 2015 at 14:14 | comment | added | Tasear | Couldn't this been done on purpose for visual appeal? Is there's an art theory being used used here? | |
| Feb 15, 2015 at 3:54 | comment | added | senshin | @FatalSleep This doesn't have anything to do with resolution. Granted, a video whose master is at 720p that is downscaled to 480p will have some smearing because you're condensing 3x3 → 2x2, but anything that's encoded lossily (e.g. h.265) will have the "milky texture" that OP's talking about. The reason that 480p typically looks so much crappier than 720p/1080p is more that encoders tend to assume that consumers of 480p video have limited bandwidth and so they crank down the quality settings relative to a parallel 720p/1080p encode to save on filesize. | |
| Feb 15, 2015 at 0:30 | comment | added | Lie Ryan | @GaoWeiWei: that depends on what kind of video you're compressing. Digitally produced animes that have mostly static background images with small animated areas, lots of flat colours, and only simple panning/rotating movements can be compressed losslessly fairly efficiently from the production studios; videos ripped from a commercially produced CD/DVD/BD are typically already compressed with some lossy compression, and already contain compression artifacts even when your eyes cannot see it, so it cannot be losslessly recompressed efficiently. | |
| Feb 14, 2015 at 21:45 | vote | accept | Brian Chin | ||
| Feb 14, 2015 at 17:08 | comment | added | Gao | Correct me if I'm wrong, but aren't essentially all videos encoded with a lossy codec? If I remember correctly, even a one minute long losslessly encoded video can be more than a few Gigabytes big (so DVDs can't fit, and sometimes Blu-rays won't either). The problem is the compression level is set too high that the artifacts become noticeable. | |
| Feb 14, 2015 at 16:47 | answer | added | Hakase | timeline score: 2 | |
| Feb 14, 2015 at 13:52 | comment | added | nhahtdh | As people have said here, it is most certainly due to the artifacts introduced by video compression. I know for a fact that in Gurren Lagann (and this probably also apply for every modern anime), they apply the color and the effects on computer, so it's very unlikely that there is any artifact at this stage. | |
| Feb 14, 2015 at 13:47 | history | edited | nhahtdh | CC BY-SA 3.0 |
deleted 55 characters in body
|
| Feb 14, 2015 at 13:07 | answer | added | Gerret | timeline score: 7 | |
| Feb 14, 2015 at 12:08 | comment | added | FatalSleep | The problem comes from compression. The anime is drawn at a certain resolution and then later scaled/compressed down to a lower resolution for production purposes. When this happens the larger image needs to blur/merge pixels together in order to fit the larger resolution on the smaller resolution. Pretty common issue with scaling in general. Although it's not really a problem until you get down to 480p, 720p looks fine(still noticeable), while 1080p and higher is much cleaner looking. | |
| Feb 14, 2015 at 11:32 | comment | added | mivilar | Regarding the non-solid surfaces, I would expect this is caused by the video compression, no? Even if that managed to maintain it, the conversion to jpeg surely introduced artifacts. | |
| Feb 14, 2015 at 11:30 | history | edited | mivilar | CC BY-SA 3.0 |
clickable images
|
| Feb 14, 2015 at 10:20 | history | asked | Brian Chin | CC BY-SA 3.0 |