매트 플롯의 색상이 있다고 해봅시다. 어쩌면 문자열 ('k') 또는 rgb 튜플 ((0.5, 0.1, 0.8))이거나 심지어 일부 헥스 (#05FA2B) 일 수도 있습니다. Matplotlib에 해당 색상을 어둡게 (또는 밝게) 할 수있는 명령/편리한 기능이 있습니까?매트 플롯의 색상을 어둡게하거나 밝게합니다.
e.e. matplotlib.pyplot.darken(c, 0.1) 또는 그와 비슷한 것이 있습니까? 내가 바라는 바는 뒷 배경에서 색상을 가져 와서 HSL로 변환 한 다음 L 값에 몇 가지 요인 (0에서 마루 및 1에서 마루)을 곱하거나 L을 명시 적으로 설정하는 것입니다. 값을 지정된 값으로 변경하고 수정 된 색상을 반환합니다.
몇 달 전이 문제를 해결해야했습니다. 아이디어는 사용자가 색상 (모든 색상)을 선택하는 것이었고 소프트웨어는 자동으로 색상 표를 생성했습니다 (이것은 과학적 목적을위한 패키지의 일부였습니다).
어쨌든 여기에 내가 그것을 달성하는 데 사용한 코드가 있습니다. 당신은 객체가하는 일의 대부분을 필요하지 않습니다하지만 당신이 무엇을 물어 당신을 줄 것이다 :
import math
class Color():
def __init__(self, color, fmt='rgb'):
self.__initialize__(color, fmt)
def __initialize__(self, color, fmt='rgb'):
if fmt == 'rgb':
self.rgb = (int(color[0]), int(color[1]), int(color[2]))
self.hex = self._rgb2hex(self.rgb)
self.hsv = self._rgb2hsv(self.rgb)
self.rgb0 = self.rgb[0]/255, self.rgb[1]/255, self.rgb[2]/255
elif fmt == 'rgb0':
self.rgb = (int(color[0] * 255), int(color[1] * 255), int(color[2] * 255))
self.hex = self._rgb2hex(self.rgb)
self.hsv = self._rgb2hsv(self.rgb)
self.rgb0 = (color[0], color[1], color[2])
elif fmt == 'hex':
self.hex = color
self.rgb = self._hex2rgb(self.hex)
self.hsv = self._rgb2hsv(self.rgb)
self.rgb0 = self.rgb[0]/255, self.rgb[1]/255, self.rgb[2]/255
elif fmt == 'hsv':
self.hsv = color
self.rgb = self._hsv2rgb(self.hsv)
self.hex = self._rgb2hex(self.rgb)
self.rgb0 = self.rgb[0]/255, self.rgb[1]/255, self.rgb[2]/255
self.__automaticPalette__()
def __automaticPalette__(self):
self.rgbColors = []
self.hexColors = []
self.hsvColors = []
self.rgb0Colors = []
hsv = self.hsv
for i in range(255):
new_hsv = hsv[0], hsv[1], (1/255) * i
self.rgbColors.append(self._hsv2rgb(new_hsv))
self.hexColors.append(self._rgb2hex(self.rgbColors[-1]))
self.hsvColors.append(new_hsv)
r, g, b = self.rgbColors[-1]
self.rgb0Colors.append((r/255, g/255, b/255))
def _testPalette(self, o=1):
from matplotlib import pyplot as plt
from matplotlib.patches import Rectangle
if o == 1:
someX, someY = 0.5, 0.1
plt.figure()
s = 1
currentAxis = plt.gca()
for x in range(254):
currentAxis.add_patch(Rectangle((x * s, someY), s, 0.1, alpha=1, color=self.rgb0Colors[x]))
currentAxis.add_patch(Rectangle((5 * s, someY + 0.07), 30, 0.02, alpha=1, color=self.rgb0))
plt.ylim(0.1, 0.2)
plt.xlim(0, (x + 1) * s)
plt.show()
elif o == 2:
local = self.rgb0Colors[90:190][0:-1:10]
someX, someY = 0.5, 0.1
plt.figure()
s = 1
currentAxis = plt.gca()
for x in range(len(local)):
currentAxis.add_patch(Rectangle((x * s, someY), s, 0.1, alpha=1, color=local[x]))
currentAxis.add_patch(Rectangle((5 * s, someY + 0.07), 30, 0.02, alpha=1, color=self.rgb0))
plt.ylim(0.1, 0.2)
plt.xlim(0, (x + 1) * s)
plt.show()
def _hex2rgb(self, value):
# http://stackoverflow.com/questions/214359/converting-hex-color-to-rgb-and-vice-versa
value = value.lstrip('#')
lv = len(value)
return tuple(int(value[i:i + int(lv/3)], 16) for i in range(0, lv, int(lv/3)))
def _rgb2hex(self, rgb):
# http://stackoverflow.com/questions/214359/converting-hex-color-to-rgb-and-vice-versa
r = rgb[0]
g = rgb[1]
b = rgb[2]
return '#%02X%02X%02X' % (r, g, b)
def _hsv2rgb(self, hsv):
# http://code.activestate.com/recipes/576919-python-rgb-and-hsv-conversion/
h, s, v = hsv
h = float(h)
s = float(s)
v = float(v)
h60 = h/60.0
h60f = math.floor(h60)
hi = int(h60f) % 6
f = h60 - h60f
p = v * (1 - s)
q = v * (1 - f * s)
t = v * (1 - (1 - f) * s)
r, g, b = 0, 0, 0
if hi == 0:
r, g, b = v, t, p
elif hi == 1:
r, g, b = q, v, p
elif hi == 2:
r, g, b = p, v, t
elif hi == 3:
r, g, b = p, q, v
elif hi == 4:
r, g, b = t, p, v
elif hi == 5:
r, g, b = v, p, q
r, g, b = int(r * 255), int(g * 255), int(b * 255)
return r, g, b
def _rgb2hsv(self, rgb):
# http://code.activestate.com/recipes/576919-python-rgb-and-hsv-conversion/
r, g, b = rgb
r, g, b = r/255.0, g/255.0, b/255.0
mx = max(r, g, b)
mn = min(r, g, b)
df = mx - mn
if mx == mn:
h = 0
elif mx == r:
h = (60 * ((g - b)/df) + 360) % 360
elif mx == g:
h = (60 * ((b - r)/df) + 120) % 360
elif mx == b:
h = (60 * ((r - g)/df) + 240) % 360
if mx == 0:
s = 0
else:
s = df/mx
v = mx
return h, s, v
def getColor(self, fmt='rgb'):
if fmt == 'rgb':
return self.rgb
elif fmt == 'hex':
return self.hex
elif fmt == 'rgb0':
return self.rgb0
elif fmt == 'hsv':
return self.hsv
를이 같이 호출 그래서 경우 :
c = Color((51, 153, 255))
# c = Color((0.5, 0.1, 0.8), fmt='rgb0') # It should work with rgb0
# c = Color('#05d4fa', fmt='hex') # and hex but I don't remember if it was well tested so be careful (the conversions might be messy).
c._testPalette(1)
print(c.rgbColors)
그것은 당신이를 반환합니다
,이 :
[(0, 0, 0), (0, 0, 1), (0, 1, 2), (0, 1, 3), (0, 2, 4), (0, 3, 5), (1, 3, 6), (1, 4, 7), (1, 4, 8), (1, 5, 9), (1, 6, 10), (2, 6, 11), (2, 7, 12), (2, 7, 13), (2, 8, 14), (2, 9, 15), (3, 9, 16), (3, 10, 17), (3, 10, 18), (3, 11, 19), (3, 12, 20), (4, 12, 21), (4, 13, 22), (4, 13, 23), (4, 14, 24), (4, 15, 25), (5, 15, 26), (5, 16, 27), (5, 16, 28), (5, 17, 29), (5, 18, 30), (6, 18, 31), (6, 19, 32), (6, 19, 32), (6, 20, 34), (6, 21, 35), (7, 21, 36), (7, 22, 36), (7, 22, 38), (7, 23, 39), (7, 24, 40), (8, 24, 40), (8, 25, 42), (8, 25, 43), (8, 26, 44), (8, 26, 44), (9, 27, 46), (9, 28, 47), (9, 28, 48), (9, 29, 48), (9, 30, 50), (10, 30, 51), (10, 31, 52), (10, 31, 52), (10, 32, 54), (10, 33, 55), (11, 33, 56), (11, 34, 56), (11, 34, 58), (11, 35, 59), (11, 36, 60), (12, 36, 60), (12, 37, 62), (12, 37, 63), (12, 38, 64), (12, 38, 65), (13, 39, 65), (13, 40, 67), (13, 40, 68), (13, 41, 69), (13, 42, 70), (14, 42, 71), (14, 43, 72), (14, 43, 73), (14, 44, 73), (14, 45, 75), (15, 45, 76), (15, 46, 77), (15, 46, 78), (15, 47, 79), (15, 48, 80), (16, 48, 81), (16, 49, 81), (16, 49, 83), (16, 50, 84), (16, 50, 85), (17, 51, 86), (17, 52, 87), (17, 52, 88), (17, 53, 89), (17, 53, 89), (18, 54, 91), (18, 55, 92), (18, 55, 93), (18, 56, 94), (18, 57, 95), (19, 57, 96), (19, 58, 97), (19, 58, 97), (19, 59, 99), (19, 60, 100), (20, 60, 101), (20, 61, 102), (20, 61, 103), (20, 62, 104), (20, 62, 105), (21, 63, 105), (21, 64, 107), (21, 64, 108), (21, 65, 109), (21, 66, 110), (22, 66, 111), (22, 67, 112), (22, 67, 113), (22, 68, 113), (22, 69, 115), (23, 69, 116), (23, 70, 117), (23, 70, 118), (23, 71, 119), (23, 72, 120), (24, 72, 121), (24, 73, 121), (24, 73, 123), (24, 74, 124), (24, 74, 125), (25, 75, 126), (25, 76, 127), (25, 76, 128), (25, 77, 129), (25, 77, 130), (26, 78, 131), (26, 79, 131), (26, 79, 133), (26, 80, 134), (26, 81, 135), (27, 81, 136), (27, 82, 137), (27, 82, 138), (27, 83, 139), (27, 84, 140), (28, 84, 141), (28, 85, 142), (28, 85, 143), (28, 86, 144), (28, 86, 145), (29, 87, 146), (29, 88, 147), (29, 88, 147), (29, 89, 149), (29, 90, 150), (30, 90, 151), (30, 91, 152), (30, 91, 153), (30, 92, 154), (30, 93, 155), (31, 93, 156), (31, 94, 157), (31, 94, 158), (31, 95, 159), (31, 96, 160), (32, 96, 161), (32, 97, 162), (32, 97, 163), (32, 98, 163), (32, 99, 165), (33, 99, 166), (33, 100, 167), (33, 100, 168), (33, 101, 169), (33, 101, 170), (34, 102, 171), (34, 103, 172), (34, 103, 173), (34, 104, 174), (34, 105, 175), (35, 105, 176), (35, 106, 177), (35, 106, 178), (35, 107, 179), (35, 107, 179), (36, 108, 181), (36, 109, 182), (36, 109, 183), (36, 110, 184), (36, 110, 185), (37, 111, 186), (37, 112, 187), (37, 112, 188), (37, 113, 189), (37, 114, 190), (38, 114, 191), (38, 115, 192), (38, 115, 193), (38, 116, 194), (38, 116, 195), (39, 117, 195), (39, 118, 197), (39, 118, 198), (39, 119, 199), (39, 120, 200), (40, 120, 201), (40, 121, 202), (40, 121, 203), (40, 122, 204), (40, 123, 205), (41, 123, 206), (41, 124, 207), (41, 124, 208), (41, 125, 209), (41, 125, 210), (42, 126, 211), (42, 127, 211), (42, 127, 213), (42, 128, 214), (42, 129, 215), (43, 129, 216), (43, 130, 217), (43, 130, 218), (43, 131, 219), (43, 132, 220), (44, 132, 221), (44, 133, 222), (44, 133, 223), (44, 134, 224), (44, 135, 225), (45, 135, 226), (45, 136, 227), (45, 136, 227), (45, 137, 229), (45, 138, 230), (46, 138, 231), (46, 139, 232), (46, 139, 233), (46, 140, 234), (46, 140, 235), (47, 141, 236), (47, 142, 237), (47, 142, 238), (47, 143, 239), (47, 144, 240), (48, 144, 241), (48, 145, 242), (48, 145, 243), (48, 146, 243), (48, 147, 245), (49, 147, 246), (49, 148, 247), (49, 148, 248), (49, 149, 249), (49, 149, 250), (50, 150, 251), (50, 151, 252), (50, 151, 253), (50, 152, 254)]
해당 컬러 맵을 생성하기 위해 생성 된 모든 색상 목록입니다. 그것은 사용자 정의이지만, matplotlib는 단지 그것을 플로팅하는 데 사용되었습니다.
편집 : 이것이 어떻게 달성되는지 설명하기위한 메모. RGB는 Red, Green 및 Blue 값을 제공합니다. 반면에 HSL (HSV)는 색조, 채도 및 밝기 (값)를 제공합니다. 따라서 RGB에서 HSL로 색상을 변환하고 밝기의 전체 스펙트럼을 실행하는 경우 색상의 어둡거나 밝은 값을 얻을 수 있습니다 (예 : 파란색은 가볍지 만 어두운 파란색으로 유지됨).
'알파'값에 대해 묻고 있습니까? – Eular
아니요. 색상을 다소 투명하게 만들고 싶지 않습니다. 더 어둡게 (더 검정색으로) 또는 더 밝게 (더 흰색으로) 만들고 싶습니다. – 8one6
확인 : http://matplotlib.org/api/colors_api.html#matplotlib.colors.LightSource.shade 및 http://matplotlib.org/api/colors_api.html#matplotlib.colors.LightSource.shade_rgb – MaxU