Magic Lantern Forum

Using Magic Lantern => General Help Q&A => Duplicate Questions => Topic started by: Jon Schnarr on February 20, 2014, 08:59:03 PM

Title: How to get only luma channel
Post by: Jon Schnarr on February 20, 2014, 08:59:03 PM
Is there any way to only process the luma channel on a T2i, before or when writing to the card?  I mean just the 4 in 4:2:2.  So, 1080p 24fps, black and white with no or little compression.
Title: Re: How to get only luma channel
Post by: chmee on February 20, 2014, 09:07:37 PM
4:2:2 (and any other) subsampling is a picture-definition after demosaicing, thus it cant be done. or better: we dont know much/enough about the hardware-encoder inside the body.. honestly saying, most of compression-efficiency is realised by simplifying the chroma-channels :)

no, i highly doubt..
Title: Re: How to get only luma channel
Post by: Jon Schnarr on February 21, 2014, 05:40:55 PM
Thanks.