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| -rw-r--r-- | LIBCOLOUR_YES.7 | 63 |
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diff --git a/LIBCOLOUR_YES.7 b/LIBCOLOUR_YES.7 new file mode 100644 index 0000000..2c31d5d --- /dev/null +++ b/LIBCOLOUR_YES.7 @@ -0,0 +1,63 @@ +.TH LIBCOLOUR_YES 7 libcolour +.SH NAME +LIBCOLOUR_YES - YES +.SH DESCRIPTION +YES colours are presented with either of +.nf + + typedef struct libcolour_yes_f libcolour_yes_f_t; + typedef struct libcolour_yes_lf libcolour_yes_lf_t; + typedef struct libcolour_yes_llf libcolour_yes_llf_t; + +.fi +These +.BR struct s +use +.BR float , +.BR double , +and +.BR long\ double , +respecitively, for the values stored in them, +and are otherwise identical. +.B struct libcolour_yes_f +is defined as +.nf + + struct libcolour_yes_f { + enum libcolour_model \fImodel\fP; + float \fIY\fP; + float \fIE\fP; + float \fIS\fP; + }; + +.fi +.I .model +shall be set to +.BR LIBCOLOUR_YES . +In +.BR union\ libcolour_colour_f , +.BR union\ libcolour_colour_lf , +and +.BR union\ libcolour_colour_llf , +.I .yes +is used for YES colours. +.P +.IR .Y , +.IR .E , +and +.I .S +hold the Y (luma), E (e-factor), and +S (s-factor) values, respectively. +.P +Y is 0 in black and 1 in white. +.P +YES is additive, since it is linearly isomorphic +to CIE 1931 XYZ. +.P +This colour model was developed for computer +vision, specifically facial analysis. +.SH SEE ALSO +.BR libcolour (7) +.SH AUTHORS +Mattias Andrée +.RI < maandree@kth.se > |