RGB to YUV

System, we usually turn into YUV to RGB format storage because:

(1) human eye is more sensitive to luminance, not so strongly sensitive to color.

(2) YUV by different sample, reducing the amount of transmission.

When using the YUV4: 2: 0, the general transfer amount can be saved.

 

Reference: https://blog.csdn.net/asahinokawa/article/details/80596655