Vous devez avoir un compte Developpez.com et être connecté pour pouvoir participer aux discussions.

Identifiez-vous
Identifiant
Mot de passe
Mot de passe oublié ?
Créer un compte

Vous n'avez pas encore de compte Developpez.com ? L'inscription est gratuite et ne vous prendra que quelques instants !

Je m'inscris !

Developpez.com

Python

Choisissez la catégorie, puis la rubrique :

colorsys — Conversions between color systems — Python v3.0 documentation

colorsys — Conversions between color systems¶

The colorsys module defines bidirectional conversions of color values between colors expressed in the RGB (Red Green Blue) color space used in computer monitors and three other coordinate systems: YIQ, HLS (Hue Lightness Saturation) and HSV (Hue Saturation Value). Coordinates in all of these color spaces are floating point values. In the YIQ space, the Y coordinate is between 0 and 1, but the I and Q coordinates can be positive or negative. In all other spaces, the coordinates are all between 0 and 1.

See also

More information about color spaces can be found at http://www.poynton.com/ColorFAQ.html and http://www.cambridgeincolour.com/tutorials/color-spaces.htm.

The colorsys module defines the following functions:

colorsys.rgb_to_yiq(r, g, b)¶
Convert the color from RGB coordinates to YIQ coordinates.
colorsys.yiq_to_rgb(y, i, q)¶
Convert the color from YIQ coordinates to RGB coordinates.
colorsys.rgb_to_hls(r, g, b)¶
Convert the color from RGB coordinates to HLS coordinates.
colorsys.hls_to_rgb(h, l, s)¶
Convert the color from HLS coordinates to RGB coordinates.
colorsys.rgb_to_hsv(r, g, b)¶
Convert the color from RGB coordinates to HSV coordinates.
colorsys.hsv_to_rgb(h, s, v)¶
Convert the color from HSV coordinates to RGB coordinates.

Example:

>>> import colorsys
>>> colorsys.rgb_to_hsv(.3, .4, .2)
(0.25, 0.5, 0.4)
>>> colorsys.hsv_to_rgb(0.25, 0.5, 0.4)
(0.3, 0.4, 0.2)
Contacter le responsable de la rubrique Python

Partenaire : Hébergement Web