Ive <ive### [at] lilysoftorg> wrote:

>
> The correct functions would be
>
> #declare SRGB_Encode = function (C, M) {
>   select (C*M-0.0031308, C*12.92*M, C*12.92*M, (1.055 * pow (C*M, 1/2.4)
> - 0.055))
> }
>
> #declare SRGB_Decode = function (C, M) {
>   select (C-0.040449936, C/12.92, pow ((C+0.055)/1.055, 2.4))*M
> }
>
> It worries me for this NG that stuff like this stays uncorrected for
> over 10 days.
>

Well, see? It did get corrected :-) (Not that I would know which is which,
mathematically speaking; functions are sometimes a 'black box' to me.) I like to
think that the newsgroups are *eventually* self-correcting, like after-the-fact
letters to a scientific publication.

I hate to admit that I have not yet tried Bald Eagle's functions; perhaps a
purely visual test would have shown that something might be amiss. [Sorry, B.E.,
I've been busy with other coding.]

He did say, ..."Perhaps it's not "right", but it's the way I envisioned its
usage."

In any case, thanks for the update.

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