

Qyot27 wrote:Without upscaling, your only option is vectorizing each and every frame and then rescaling - which for general use just isn't practical for a regular video stream. Certain vector-based and Photoshop-type 'effects'* could be utilized with stills to fudge the issue by trying to use them to mask the upscaling artifacts, but it's still not a replacement for using truly HD sources (unless you just want to use the vector 'effects' without the fudging, but it would take more work to make them look presentable after doing that).
*What I'm referring to here is brightness weighting. If you just take the weighted sections - which do still resemble the images they were rendered from - then you could do HD videos from SD sources without quality loss, but to make those weights look right you'd have to be mindful of other things in the video. I do plan to use brightness weighting (albeit without the major rescaling bit - the source would already be 720p or 1080p) on a future video, but I still need to get all of the correct source footage first.
Both times I've ever experimented with HD have been with HD-compatible sources, though (high-res doujin scans and the 1600x1200 event CG from Ina Koi!).

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