Message179323
| Author |
serhiy.storchaka |
| Recipients |
ezio.melotti, mark.dickinson, packetslave, serhiy.storchaka, terry.reedy |
| Date |
2013年01月08日.09:16:24 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<1357636585.02.0.490130673324.issue14323@psf.upfronthosting.co.za> |
| In-reply-to |
| Content |
According to Wikipedia FCC conversion is defined as:
y = 0.30*r + 0.59*g + 0.11*b
i = 0.5990*r - 0.2773*g - 0.3217*b
q = 0.2130*r - 0.5251*g + 0.3121*b
and non-FCC conversion is defined as:
y = 0.299*r + 0.587*g + 0.114*b
i = 0.595716*r - 0.274453*g - 0.321263*b
q = 0.211456*r - 0.522591*g + 0.311135*b
Our current code
y = 0.30*r + 0.59*g + 0.11*b
i = 0.60*r - 0.28*g - 0.32*b
q = 0.21*r - 0.52*g + 0.31*b
looks like FCC conversion with the precision of two decimal places. Actually with this precision the difference between the different conversions are almost absent. |
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