4 ms·
Is this essentially RAW at 24-60fps?
by yieldcrv 3y ago
Is this essentially RAW at 24-60fps?
- pixelbath 3y agoIt is less processed, but TFA points out that it is definitely not RAW, particularly in the section titled "Log is Half Baked."
- mavidser 3y agoThat'd be 'ProRes RAW', which I don't think an iPhone can shoot in. Log is still processed video, just graded in a flatter profile so you can do more degrees of adjustments in different dimensions like color and exposure. RAW footage, can barely be called video. Those files don't even have any White Balance and ISO data baked in, just raw data from the sensor, providing even more amount of control in post production, at the expense of working with extremely large files.
- isomorphic 3y agoAlso, just to muddy these waters, Apple has the ProRAW format--which isn't a video format at all, it's a still-picture format. https://support.apple.com/en-us/HT211965 https://support.apple.com/en-us/HT211965
- deleted 3y ago[deleted]
- perbu 3y agoThe video is still compressed, but the colors are RAW. Sort of.
- mikae1 3y agoNo, it's demosaiced[1]. Not raw data. [1] https://en.wikipedia.org/wiki/Demosaicing https://en.wikipedia.org/wiki/Demosaicing
- WithinReason 3y agoSo then why not just use the raw data? Demosaicing triples the number of pixels, so expands the data by 3x.
- tuukkah 3y ago(Conceptually, the number of pixels remains the same but the result of demosaicing is RGB pixels so what triples is the number of channels.) I hear it's good to perform demosaicing, denoising and super-resolution in one step, so perhaps that's what's happening here? EDIT: on the video (section "Log is Half-Baked"), they also mention the processing includes tone mapping, color adjustment and lens distortion correction.
- mikae1 3y agoA lossy compressed intra-frame codec such as ProRes 422 HQ still gives a lower bitrate.
- macintux 3y agoComparison of RAW and LOG on the same site: https://prolost.com/blog/rawvslog https://prolost.com/blog/rawvslog