Author serhiy.storchaka
Recipients ezio.melotti, mark.dickinson, packetslave, serhiy.storchaka, terry.reedy
Date 2013-01-08.09:16:24
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.
History
Date User Action Args
2013-01-08 09:16:25serhiy.storchakasetrecipients: + serhiy.storchaka, terry.reedy, mark.dickinson, ezio.melotti, packetslave
2013-01-08 09:16:25serhiy.storchakasetmessageid: <1357636585.02.0.490130673324.issue14323@psf.upfronthosting.co.za>
2013-01-08 09:16:24serhiy.storchakalinkissue14323 messages
2013-01-08 09:16:24serhiy.storchakacreate