JPEG编码问题
每个像素有 24 位可用。 假设 1.眼睛对亮度的敏感度高于对颜色的敏感度。 2.眼睛对红光敏感绿色比蓝色。
我可以选择什么样的编码?
我想了想,但没有想到。 4:2:0 编码的 Y'CbCr 适用于亮度部分,但是颜色呢?
24 bits are available per pixel.
Assuming
1. eyes are sensitive to brightness than color.
2. eyes are sensitive to red & green than blue.
What kind of encoding can I choose?
I thought about it,but didn't get an idea. Y'CbCr with 4:2:0 encoding works for the brightness part, but what about the color?
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这已经算进去了。 YUV420 意味着颜色分量被二次采样。我不确定它是水平的还是垂直的。这意味着与亮度相比,您的图像将包含一半的颜色信息。此外,颜色分量的量化表是不同的,因此也会提高压缩率。
That's already accounted for. YUV420 meens that the color components are subsampled. I'm not sure if it was horizontally or vertically though. That means that your image will contain half the color information compared to luminence. Also, the quantization tables are different for the color components so that will also increase the compression rate.