Blu-ray chroma subsampling

1. What is the best chroma subsampling?
2. What does chroma subsampling do?
3. What is 4 2 0 subsampling?
4. Does chroma subsampling reduce resolution?

What is the best chroma subsampling?

Answer: 4:4:4 is uncompressed and therefore provides the best image quality, whereas 4:2:2 and 4:2:0 sacrifice color quality for a lower data rate. Chroma subsampling is a type of color compression that reduces data rate and file size.

What does chroma subsampling do?

Chroma subsampling is a type of compression that reduces the color information in a signal in favor of luminance data in order to reduce bandwidth usage without significantly affecting picture quality.

What is 4 2 0 subsampling?

The 4:2:2 signal will have half the sampling rate horizontally, but will maintain full sampling vertically. 4:2:0, on the other hand, will only sample colors out of half the pixels on the first row and ignores the second row of the sample completely.

Does chroma subsampling reduce resolution?

Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.