The db scale is logarithmic but doesn't match how our eyes sense light. So small changes in db may result in large visible light changes, or vise versa. Have you ever looked at a raw image, it doesn't look correct untill a gamma is applied, even though roughly the same information exists in both raw and gamma images. This is a similar concept.
To do do this: db > linear > gamma
This can be precomputed into a lookup table with the number of entries being the number of current steps, 8-bit 256 entries.
I wish there was an app for the other annoyances of the 'Bombay' airport. Like the get your ass in line app, or I don't need you to carry my luggage 5ft and demand a tip app.
Several reasons,
-Silicon efficiency (QE) peaks in the green
-Green spectral response curve is close to the luminance curve humans see, like you said.
-Twice the pixels to increase the effective resolution in the green/luminance channel, color channels in YUV contribute almost no details.
Why is YUV or other luminance-chrominance color spaces important for a RGB input? Because many processing steps and encoders, work in YUV colorspaces. This wasn't really covered in the article.
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