蓝光机HDMI输出RGB，全RGB，YCBCR，YCBCR422 选哪个画质最好 蓝光机HDMI输出RGB，全RGB，YCBCR，YCBCR4...
\u84dd\u5149\u673aHDMI\u8f93\u51faRGB\uff0c\u5168RGB\uff0cYCBCR\uff0cYCBCR422 \u9009\u54ea\u4e2a\u753b\u8d28\u6700\u597d\u5168RGB\u6216YCbCr\u6a21\u5f0f\u6548\u679c\u6700\u597d\u3002
\u56e0\u4e3a\u6709\u5168RGB\u9009\u9879\uff0c\u524d\u9762\u7684RGB\u6a21\u5f0f\u5e94\u8be5\u662fRGB limit\u6a21\u5f0f\uff0c\u8303\u56f4\u4e3a16~235\uff0c\u753b\u9762\u770b\u8d77\u6765\u7070\u8499\u8499\u7684\u3002
YCbCr422\u8868\u793a4\u4e2a\u50cf\u7d20\u67094\u4e2a\u4eae\u5ea6\u5206\u91cf\uff0c2\u4e2a\u84dd\u8272\u8272\u5ea6\u5206\u91cf\uff0c2\u4e2a\u7ea2\u8272\u8272\u5ea6\u5206\u91cf\u3002\u663e\u7136\uff0c\u8272\u5ea6\u4e0a\u505a\u4e86\u538b\u7f29\u3002
\u5f53\u7136\u662fHDMI\u9ad8\u6e05\u63a5\u53e3\u753b\u8d28\u6700\u597d\u54e6
YCBCR422最好。RGB那就只有红绿蓝。YCBCR是含亮度。
YCbCr与RGB的相互转换
Y = 0.257*R+0.504*G+0.098*B+16
Cb = -0.148*R-0.291*G+0.439*B+128
Cr = 0.439*R-0.368*G-0.071*B+128
R = 1.164*(Y-16)+1.596*(Cr-128)
G = 1.164*(Y-16)-0.392*(Cb-128)-0.813*(Cr-128)
B = 1.164*(Y-16)+2.017*(Cb-128)
当然如果有YCBCR444那就最好，可以选这个。
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绛旓細YCBCR422鏈濂姐RGB閭ｅ氨鍙湁绾㈢豢钃濄俌CBCR鏄惈浜害銆俌CbCr涓嶳GB鐨勭浉浜掕浆鎹 Y = 0.257*R+0.504*G+0.098*B+16 Cb = -0.148*R-0.291*G+0.439*B+128 Cr = 0.439*R-0.368*G-0.071*B+128 R = 1.164*(Y-16)+1.596*(Cr-128)G = 1.164*(Y-16)-0.392*(Cb-128)-0.8...
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