rgb转nv12 nv12转rgb

详见:https://www.jianshu.com/p/da2a682ae964

转换公式:

* RGB转YUV:

Y = 0.299 R + 0.587 G + 0.114 B

U = - 0.1687 R - 0.3313 G + 0.5 B + 128

V = 0.5 R - 0.4187 G - 0.0813 B + 128

YUV转RGB

R = Y + 1.402 (V - 128)

G = Y - 0.34414 (U - 128) - 0.71414 (V - 128)

B = Y + 1.772 (U - 128)

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转载自blog.csdn.net/lindonghai/article/details/82757815
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