3 ms·
No, that makes no sense. Why would you store debayered data when you can store the original with the same exact results?
by bufferoverflow 9y ago
No, that makes no sense. Why would you store debayered data when you can store the original with the same exact results?
- kurthr 9y agoYou realize that Bayer data counts every column and row whether R G or B, right? Half the pixels (21Mpix) are green and the other 2 quarters are R and G. So if you're going down to FHD (2kx1k) from 42Mpix (8kx5k) you have already lost massive ammounts of resolution (and noise). Bayer FHD would be SPR (sup-pixel rendered) and even lower resolution (1/3 RGB e.g. 1080 lines of 1920 RG/BG alternating columns) than most JPEG FHD (natural scene) not suitable for video compression much less Raw. That would be silly. If you don't down-sample the data somehow you can't even get it off the CIS which are limited to ~2-5Gb/sec. Since most reasonable image sizes are large enough you can see color at full resolution we typically use RGB at FHD, compressed or not. Alternately, you can go to 4:4:4 to 4:2:2 or even 4:1:1 in Yuv (YCbCr), but that's not Raw or anything like it.