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mò =5Dc @ s d Z d d d d d d g Z d d Z d d Z d d Z d Z d Z d Z d Z d Z d Z d Z d S( sæ 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]. Inputs outside this range may cause exceptions or invalid outputs. Supported color systems: RGB: Red, Green, Blue components YIQ: used by composite video signals HLS: Hue, Luminance, Saturation HSV: Hue, Saturation, Value t rgb_to_yiqt yiq_to_rgbt rgb_to_hlst hls_to_rgbt rgb_to_hsvt hsv_to_rgbf1.0f3.0f6.0f2.0c C s[ d | d | d | } d | d | d | } d | d | d | } | | | f S( Nf0.29999999999999999f0.58999999999999997f0.11f0.59999999999999998f0.28000000000000003f0.32000000000000001f0.20999999999999999f0.52000000000000002f0.31( t rt gt bt yt it q( R R R R R R ( ( t /usr/lib64/python2.4/colorsys.pyR " s c C sÙ | d | d | } | d | d | } | d | d | } | d j o d } n | d j o d } n | d j o d } n | d j o d } n | d j o d } n | d j o d } n | | | f S( Nf0.94826200000000005f0.62401300000000004f0.27606599999999998f0.63980999999999999f1.10545f1.72986f0.0f1.0( R R R R R R ( R R R R R R ( ( R R ( s c C s" t | | | } t | | | } | | d } | | j o d | d f Sn | d j o | | | | } n | | d | | } | | | | } | | | | } | | | | } | | j o | | } n. | | j o d | | } n d | | } | d d } | | | f S( Nf2.0f0.0f0.5f4.0f6.0f1.0( t maxR R R t maxct mint minct lt st rct gct bct h( R R R R R R R R R R R ( ( R R : s$ c C s | d j o | | | f Sn | d j o | d | } n | | | | } d | | } t | | | t t | | | t | | | t f S( Nf0.0f0.5f1.0f2.0( R R t m2t m1t _vR t ONE_THIRD( R R R R R ( ( R R K s c C sq | d } | t j o | | | | d Sn | d j o | Sn | t j o | | | t | d Sn | S( Nf1.0f6.0f0.5( t huet ONE_SIXTHR R t TWO_THIRD( R R R ( ( R R R s c C sï t | | | } t | | | } | } | | j o d d | f Sn | | | } | | | | } | | | | } | | | | } | | j o | | } n. | | j o d | | } n d | | } | d d } | | | f S( Nf0.0f2.0f4.0f6.0f1.0( R R R R R R R t vR R R R R ( R R R R R R R R R R R ( ( R R _ s c C s. | d j o | | | f Sn t | d } | d | } | d | } | d | | } | d | d | } | d d j o | | | f Sn | d j o | | | f Sn | d j o | | | f Sn | d j o | | | f Sn | d j o | | | f Sn | d j o | | | f Sn d S( Nf0.0f6.0f1.0i i i i i i i ( R R t intR R t ft pR t t( R R R R R R! R R" ( ( R R n s& N( t __doc__t __all__R R R R R R R R R R ( R R R$ R R R R R R R R ( ( R t ? s