Converting Unity's RGBA array to YUV byte array

Question

Unity's Texture.GetPixels32() gives us a Color32[], which is an RGBA array that can be converted easily into byte[].

How can we convert this Color32[] or RGBA byte[] into a YUV byte[]?

Also, how does the Alpha value affect the YUV conversion? Online, I mostly see people only trying to convert RGB to YUV. Thanks!

Maybe I know why you're doing this? Where do you need to use this byte array? — Programmer
– Programmer, Commented Nov 30, 2018 at 20:31

György Gulyás · Accepted Answer · 2018-11-30 21:00:33Z

2

Here is the little sample from my code:

decimal y = rgb.R * .299000 + rgb.G * .587000 + rgb.B * .114000;
decimal u = rgb.R * -.168736 + rgb.G * -.331264 + rgb.B * .500000 + 128;
decimal v = rgb.R * .500000 + rgb.G * -.418688 + rgb.B * -.081312 + 128;

I used the yuv in 0....1 intervall

answered Nov 30, 2018 at 21:00

György Gulyás

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