[Mp4-tech] sampling formats

[Gary Sullivan]

I think the minimum size of a 4:2:0 image would conceptually be six samples (4 luma and 2 chroma).  The formula is height*width*1.5 (assuming height and width are even numbers).
I think the minimum size of a 4:2:2 image would conceptually be eight samples (4 luma and 4 chroma).  The formula is height*width*2 (assuming height and width are even numbers).
I think the minimum size of a 4:1:1 image would conceptually be twelve samples (8 luma and 4 chroma) or perhaps only 6 samples (4 luma and 2 chroma).  The formula is height*width*1.5 (assuming width is a multple of 4).
I think the minimum size of a 4:4:4 image would conceptually be twelve samples (4 luma and 8 chroma) or perhaps only 3 samples (1 luma and 2 chroma).  The formula is height*width*3.
But somehow I suspect that is not the answer you are looking for.  I suggest clarifying your question.
Best Regards,
Gary Sullivan
________________________________
From: mp4-tech-bounces lists.mpegif.org [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of Mayank Agarwal
Sent: Wednesday, May 09, 2024 1:56 AM
To: mp4-tech lists.mpegif.org
Subject: [Mp4-tech] sampling formats
Hi,
Please if anyone can tell me what is the minimum size of the YUV image
in various formats like 4:2:0,4:2:2,4:1:1 and how do we determine that.
Regards,
Mayank
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