fk c @ s d Z d d d d d d g Z d Z d Z d Z d d Z d d Z d
d Z d d Z d d Z d d Z
d d Z d S( uJ Conversion functions between RGB and other color systems.
This modules provides two functions for each color system ABC:
rgb_to_abc(r, g, b) --> a, b, c
abc_to_rgb(a, b, c) --> r, g, b
All inputs and outputs are triples of floats in the range [0.0...1.0]
(with the exception of I and Q, which covers a slightly larger range).
Inputs outside the valid range may cause exceptions or invalid outputs.
Supported color systems:
RGB: Red, Green, Blue components
YIQ: Luminance, Chrominance (used by composite video signals)
HLS: Hue, Luminance, Saturation
HSV: Hue, Saturation, Value
u
rgb_to_yiqu
yiq_to_rgbu
rgb_to_hlsu
hls_to_rgbu
rgb_to_hsvu
hsv_to_rgbg ?g @g @g @c C s[ d | d | d | } d | d | d | } d | d | d | } | | | f S(
Ng333333?gzG?g)\(?g333333?gQ ?g{Gz?gzG?gp=
ף?gףp=
?( ( u ru gu bu yu iu q( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
rgb_to_yiq% s c C s | d | d | } | d | d | } | d | d | } | d k rW d } n | d k rl d } n | d k r d } n | d k r d } n | d k r d } n | d k r d } n | | | f S( NgD)X?gSh ?gfb?g4Ry?gV?gvꭁ?g g ?( ( u yu iu qu ru gu b( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
yiq_to_rgb+ s c C s t | | | } t | | | } | | d } | | k rK d | d f S| d k rl | | | | } n | | d | | } | | | | } | | | | } | | | | } | | k r | | }
n+ | | k r d | | }
n d | | }
|
d d }
|
| | f S( Ng @g g ?g @g @g ?( u maxu min( u ru gu bu maxcu mincu lu su rcu gcu bcu h( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
rgb_to_hlsC s$
c C s | d k r | | | f S| d k r6 | d | } n | | | | } d | | } t | | | t t | | | t | | | t f S( Ng g ?g ?g @( u _vu ONE_THIRD( u hu lu su m2u m1( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
hls_to_rgbZ s
c C sb | d } | t k r* | | | | d S| d k r: | S| t k r^ | | | t | d S| S( Ng ?g @g ?( u ONE_SIXTHu TWO_THIRD( u m1u m2u hue( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu _vd s
u _vc C s t | | | } t | | | } | } | | k rC d d | f S| | | } | | | | } | | | | } | | | | } | | k r | | }
n+ | | k r d | | }
n d | | }
|
d d }
|
| | f S( Ng g @g @g @g ?( u maxu min( u ru gu bu maxcu mincu vu su rcu gcu bcu h( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
rgb_to_hsvt s
c C s | d k r | | | f St | d } | d | } | d | } | d | | } | d | d | } | d } | d k r | | | f S| d k r | | | f S| d k r | | | f S| d k r | | | f S| d k r | | | f S| d
k r
| | | f Sd S( Ng g @g ?i i i i i i i ( u int( u hu su vu iu fu pu qu t( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu
hsv_to_rgb s(
NgUUUUUU?gUUUUUU?gUUUUUU?( u __doc__u __all__u ONE_THIRDu ONE_SIXTHu TWO_THIRDu
rgb_to_yiqu
yiq_to_rgbu
rgb_to_hlsu
hls_to_rgbu _vu
rgb_to_hsvu
hsv_to_rgb( ( ( u- /opt/alt/python33/lib64/python3.3/colorsys.pyu s