Python colorsys.yiq_to_rgb() Examples
The following are 10
code examples of colorsys.yiq_to_rgb().
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Example #1
| Source File: test_colorsys.py From Fluid-Designer with GNU General Public License v3.0 | 6 votes |
|
def test_yiq_values(self):
values = [
# rgb, yiq
((0.0, 0.0, 0.0), (0.0, 0.0, 0.0)), # black
((0.0, 0.0, 1.0), (0.11, -0.3217, 0.3121)), # blue
((0.0, 1.0, 0.0), (0.59, -0.2773, -0.5251)), # green
((0.0, 1.0, 1.0), (0.7, -0.599, -0.213)), # cyan
((1.0, 0.0, 0.0), (0.3, 0.599, 0.213)), # red
((1.0, 0.0, 1.0), (0.41, 0.2773, 0.5251)), # purple
((1.0, 1.0, 0.0), (0.89, 0.3217, -0.3121)), # yellow
((1.0, 1.0, 1.0), (1.0, 0.0, 0.0)), # white
((0.5, 0.5, 0.5), (0.5, 0.0, 0.0)), # grey
]
for (rgb, yiq) in values:
self.assertTripleEqual(yiq, colorsys.rgb_to_yiq(*rgb))
self.assertTripleEqual(rgb, colorsys.yiq_to_rgb(*yiq))
Example #2
| Source File: test_colorsys.py From ironpython3 with Apache License 2.0 | 6 votes |
|
def test_yiq_values(self):
values = [
# rgb, yiq
((0.0, 0.0, 0.0), (0.0, 0.0, 0.0)), # black
((0.0, 0.0, 1.0), (0.11, -0.3217, 0.3121)), # blue
((0.0, 1.0, 0.0), (0.59, -0.2773, -0.5251)), # green
((0.0, 1.0, 1.0), (0.7, -0.599, -0.213)), # cyan
((1.0, 0.0, 0.0), (0.3, 0.599, 0.213)), # red
((1.0, 0.0, 1.0), (0.41, 0.2773, 0.5251)), # purple
((1.0, 1.0, 0.0), (0.89, 0.3217, -0.3121)), # yellow
((1.0, 1.0, 1.0), (1.0, 0.0, 0.0)), # white
((0.5, 0.5, 0.5), (0.5, 0.0, 0.0)), # grey
]
for (rgb, yiq) in values:
self.assertTripleEqual(yiq, colorsys.rgb_to_yiq(*rgb))
self.assertTripleEqual(rgb, colorsys.yiq_to_rgb(*yiq))
Example #3
| Source File: test_colorsys.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 6 votes |
|
def test_yiq_values(self):
values = [
# rgb, yiq
((0.0, 0.0, 0.0), (0.0, 0.0, 0.0)), # black
((0.0, 0.0, 1.0), (0.11, -0.3217, 0.3121)), # blue
((0.0, 1.0, 0.0), (0.59, -0.2773, -0.5251)), # green
((0.0, 1.0, 1.0), (0.7, -0.599, -0.213)), # cyan
((1.0, 0.0, 0.0), (0.3, 0.599, 0.213)), # red
((1.0, 0.0, 1.0), (0.41, 0.2773, 0.5251)), # purple
((1.0, 1.0, 0.0), (0.89, 0.3217, -0.3121)), # yellow
((1.0, 1.0, 1.0), (1.0, 0.0, 0.0)), # white
((0.5, 0.5, 0.5), (0.5, 0.0, 0.0)), # grey
]
for (rgb, yiq) in values:
self.assertTripleEqual(yiq, colorsys.rgb_to_yiq(*rgb))
self.assertTripleEqual(rgb, colorsys.yiq_to_rgb(*yiq))
Example #4
| Source File: colors.py From rekall with GNU General Public License v2.0 | 5 votes |
|
def YIQToRGB(y, i, q):
red, green, blue = colorsys.yiq_to_rgb(y, i, q)
return int(red * 0xff), int(green * 0xff), int(blue * 0xff)
# Text-color heuristics:
Example #5
| Source File: test_colorsys.py From Fluid-Designer with GNU General Public License v3.0 | 5 votes |
|
def test_yiq_roundtrip(self):
for r in frange(0.0, 1.0, 0.2):
for g in frange(0.0, 1.0, 0.2):
for b in frange(0.0, 1.0, 0.2):
rgb = (r, g, b)
self.assertTripleEqual(
rgb,
colorsys.yiq_to_rgb(*colorsys.rgb_to_yiq(*rgb))
)
Example #6
| Source File: uistuff.py From pychess with GNU General Public License v3.0 | 5 votes |
|
def genColor(n, startpoint=0):
assert n >= 1
# This splits the 0 - 1 segment in the pizza way
hue = (2 * n - 1) / (2.**(n - 1).bit_length()) - 1
hue = (hue + startpoint) % 1
# We set saturation based on the amount of green, scaled to the interval
# [0.6..0.8]. This ensures a consistent lightness over all colors.
rgb = colorsys.hsv_to_rgb(hue, 1, 1)
rgb = colorsys.hsv_to_rgb(hue, 1, (1 - rgb[1]) * 0.2 + 0.6)
# This algorithm ought to balance colors more precisely, but it overrates
# the lightness of yellow, and nearly makes it black
# yiq = colorsys.rgb_to_yiq(*rgb)
# rgb = colorsys.yiq_to_rgb(.125, yiq[1], yiq[2])
return rgb
Example #7
| Source File: test_colorsys.py From ironpython3 with Apache License 2.0 | 5 votes |
|
def test_yiq_roundtrip(self):
for r in frange(0.0, 1.0, 0.2):
for g in frange(0.0, 1.0, 0.2):
for b in frange(0.0, 1.0, 0.2):
rgb = (r, g, b)
self.assertTripleEqual(
rgb,
colorsys.yiq_to_rgb(*colorsys.rgb_to_yiq(*rgb))
)
Example #8
| Source File: test_colorsys.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 5 votes |
|
def test_yiq_roundtrip(self):
for r in frange(0.0, 1.0, 0.2):
for g in frange(0.0, 1.0, 0.2):
for b in frange(0.0, 1.0, 0.2):
rgb = (r, g, b)
self.assertTripleEqual(
rgb,
colorsys.yiq_to_rgb(*colorsys.rgb_to_yiq(*rgb))
)
Example #9
| Source File: cdr_utils.py From uniconvertor with GNU Affero General Public License v3.0 | 5 votes |
|
def parse_yiq(data):
"""
Parses YIQ color bytes and returns fill style list.
"""
y = ord(data[0]) / 255.0
i = 2.0 * ord(data[1]) / 255.0 - 1.0
q = 2.0 * ord(data[2]) / 255.0 - 1.0
r, g, b = yiq_to_rgb(y, i, q)
return [uc2const.COLOR_RGB, [r, g, b], 1.0, '']
Example #10
| Source File: cmx_to_sk2.py From uniconvertor with GNU Affero General Public License v3.0 | 4 votes |
|
def set_v1_colors(self):
rclr = self.cmx_model.chunk_map[cmx_const.RCLR_ID]
colors = rclr.data['colors']
for model, _pal, vals in colors:
model = cmx_const.COLOR_MODEL_MAP.get(model, cmx_const.CMX_INVALID)
clr = sk2const.CMYK_BLACK
if model == cmx_const.CMX_CMYK:
vals = cms.val_100_to_dec(vals)
clr = [uc2const.COLOR_CMYK, vals, 1.0, '']
elif model == cmx_const.CMX_CMYK255:
vals = cms.val_255_to_dec(vals)
clr = [uc2const.COLOR_CMYK, vals, 1.0, '']
elif model == cmx_const.CMX_CMY:
vals = cms.val_255_to_dec(vals) + (0.0,)
clr = [uc2const.COLOR_CMYK, vals, 1.0, '']
elif model == cmx_const.CMX_RGB:
vals = cms.val_255_to_dec(vals)
clr = [uc2const.COLOR_RGB, vals, 1.0, '']
elif model == cmx_const.CMX_HSB:
first = vals[0] * 255 + vals[1] \
if self.rifx else vals[0] + vals[1] * 255
vals = (first / 360.0, vals[2] / 255.0, vals[3] / 255.0)
r, g, b = colorsys.hsv_to_rgb(*vals)
clr = [uc2const.COLOR_RGB, [r, g, b], 1.0, '']
elif model == cmx_const.CMX_HLS:
first = vals[0] * 255 + vals[1] \
if self.rifx else vals[0] + vals[1] * 255
vals = (first / 360.0, vals[2] / 255.0, vals[3] / 255.0)
r, g, b = colorsys.hls_to_rgb(*vals)
clr = [uc2const.COLOR_RGB, [r, g, b], 1.0, '']
elif model == cmx_const.CMX_BW:
vals = [1.0, 1.0, 1.0] if vals[0] else [0.0, 0.0, 0.0]
clr = [uc2const.COLOR_RGB, vals, 1.0, '']
elif model == cmx_const.CMX_GRAY:
clr = [uc2const.COLOR_GRAY, [vals[0] / 255.0, ], 1.0, '']
elif model == cmx_const.CMX_YIQ255:
y = vals[0] / 255.0
i = 2.0 * vals[1] / 255.0 - 1.0
q = 2.0 * vals[2] / 255.0 - 1.0
r, g, b = colorsys.yiq_to_rgb(y, i, q)
clr = [uc2const.COLOR_RGB, [r, g, b], 1.0, '']
elif model == cmx_const.CMX_LAB:
vals = cms.val_255_to_dec(vals)
clr = [uc2const.COLOR_LAB, vals, 1.0, '']
self._colors.append(clr)
