opencv/modules/ts/misc/color.py
2012-11-23 22:57:22 +04:00

387 lines
9.8 KiB
Python
Executable File

#!/usr/bin/env python
import math, os, sys
webcolors = {
"indianred": "#cd5c5c",
"lightcoral": "#f08080",
"salmon": "#fa8072",
"darksalmon": "#e9967a",
"lightsalmon": "#ffa07a",
"red": "#ff0000",
"crimson": "#dc143c",
"firebrick": "#b22222",
"darkred": "#8b0000",
"pink": "#ffc0cb",
"lightpink": "#ffb6c1",
"hotpink": "#ff69b4",
"deeppink": "#ff1493",
"mediumvioletred": "#c71585",
"palevioletred": "#db7093",
"lightsalmon": "#ffa07a",
"coral": "#ff7f50",
"tomato": "#ff6347",
"orangered": "#ff4500",
"darkorange": "#ff8c00",
"orange": "#ffa500",
"gold": "#ffd700",
"yellow": "#ffff00",
"lightyellow": "#ffffe0",
"lemonchiffon": "#fffacd",
"lightgoldenrodyellow": "#fafad2",
"papayawhip": "#ffefd5",
"moccasin": "#ffe4b5",
"peachpuff": "#ffdab9",
"palegoldenrod": "#eee8aa",
"khaki": "#f0e68c",
"darkkhaki": "#bdb76b",
"lavender": "#e6e6fa",
"thistle": "#d8bfd8",
"plum": "#dda0dd",
"violet": "#ee82ee",
"orchid": "#da70d6",
"fuchsia": "#ff00ff",
"magenta": "#ff00ff",
"mediumorchid": "#ba55d3",
"mediumpurple": "#9370db",
"blueviolet": "#8a2be2",
"darkviolet": "#9400d3",
"darkorchid": "#9932cc",
"darkmagenta": "#8b008b",
"purple": "#800080",
"indigo": "#4b0082",
"darkslateblue": "#483d8b",
"slateblue": "#6a5acd",
"mediumslateblue": "#7b68ee",
"greenyellow": "#adff2f",
"chartreuse": "#7fff00",
"lawngreen": "#7cfc00",
"lime": "#00ff00",
"limegreen": "#32cd32",
"palegreen": "#98fb98",
"lightgreen": "#90ee90",
"mediumspringgreen": "#00fa9a",
"springgreen": "#00ff7f",
"mediumseagreen": "#3cb371",
"seagreen": "#2e8b57",
"forestgreen": "#228b22",
"green": "#008000",
"darkgreen": "#006400",
"yellowgreen": "#9acd32",
"olivedrab": "#6b8e23",
"olive": "#808000",
"darkolivegreen": "#556b2f",
"mediumaquamarine": "#66cdaa",
"darkseagreen": "#8fbc8f",
"lightseagreen": "#20b2aa",
"darkcyan": "#008b8b",
"teal": "#008080",
"aqua": "#00ffff",
"cyan": "#00ffff",
"lightcyan": "#e0ffff",
"paleturquoise": "#afeeee",
"aquamarine": "#7fffd4",
"turquoise": "#40e0d0",
"mediumturquoise": "#48d1cc",
"darkturquoise": "#00ced1",
"cadetblue": "#5f9ea0",
"steelblue": "#4682b4",
"lightsteelblue": "#b0c4de",
"powderblue": "#b0e0e6",
"lightblue": "#add8e6",
"skyblue": "#87ceeb",
"lightskyblue": "#87cefa",
"deepskyblue": "#00bfff",
"dodgerblue": "#1e90ff",
"cornflowerblue": "#6495ed",
"royalblue": "#4169e1",
"blue": "#0000ff",
"mediumblue": "#0000cd",
"darkblue": "#00008b",
"navy": "#000080",
"midnightblue": "#191970",
"cornsilk": "#fff8dc",
"blanchedalmond": "#ffebcd",
"bisque": "#ffe4c4",
"navajowhite": "#ffdead",
"wheat": "#f5deb3",
"burlywood": "#deb887",
"tan": "#d2b48c",
"rosybrown": "#bc8f8f",
"sandybrown": "#f4a460",
"goldenrod": "#daa520",
"darkgoldenrod": "#b8860b",
"peru": "#cd853f",
"chocolate": "#d2691e",
"saddlebrown": "#8b4513",
"sienna": "#a0522d",
"brown": "#a52a2a",
"maroon": "#800000",
"white": "#ffffff",
"snow": "#fffafa",
"honeydew": "#f0fff0",
"mintcream": "#f5fffa",
"azure": "#f0ffff",
"aliceblue": "#f0f8ff",
"ghostwhite": "#f8f8ff",
"whitesmoke": "#f5f5f5",
"seashell": "#fff5ee",
"beige": "#f5f5dc",
"oldlace": "#fdf5e6",
"floralwhite": "#fffaf0",
"ivory": "#fffff0",
"antiquewhite": "#faebd7",
"linen": "#faf0e6",
"lavenderblush": "#fff0f5",
"mistyrose": "#ffe4e1",
"gainsboro": "#dcdcdc",
"lightgrey": "#d3d3d3",
"silver": "#c0c0c0",
"darkgray": "#a9a9a9",
"gray": "#808080",
"dimgray": "#696969",
"lightslategray": "#778899",
"slategray": "#708090",
"darkslategray": "#2f4f4f",
"black": "#000000",
}
if os.name == "nt":
consoleColors = [
"#000000", #{ 0, 0, 0 },//0 - black
"#000080", #{ 0, 0, 128 },//1 - navy
"#008000", #{ 0, 128, 0 },//2 - green
"#008080", #{ 0, 128, 128 },//3 - teal
"#800000", #{ 128, 0, 0 },//4 - maroon
"#800080", #{ 128, 0, 128 },//5 - purple
"#808000", #{ 128, 128, 0 },//6 - olive
"#C0C0C0", #{ 192, 192, 192 },//7 - silver
"#808080", #{ 128, 128, 128 },//8 - gray
"#0000FF", #{ 0, 0, 255 },//9 - blue
"#00FF00", #{ 0, 255, 0 },//a - lime
"#00FFFF", #{ 0, 255, 255 },//b - cyan
"#FF0000", #{ 255, 0, 0 },//c - red
"#FF00FF", #{ 255, 0, 255 },//d - magenta
"#FFFF00", #{ 255, 255, 0 },//e - yellow
"#FFFFFF", #{ 255, 255, 255 } //f - white
]
else:
consoleColors = [
"#2e3436",
"#cc0000",
"#4e9a06",
"#c4a000",
"#3465a4",
"#75507b",
"#06989a",
"#d3d7cf",
"#ffffff",
"#555753",
"#ef2929",
"#8ae234",
"#fce94f",
"#729fcf",
"#ad7fa8",
"#34e2e2",
"#eeeeec",
]
def RGB2LAB(r,g,b):
if max(r,g,b):
r /= 255.
g /= 255.
b /= 255.
X = (0.412453 * r + 0.357580 * g + 0.180423 * b) / 0.950456
Y = (0.212671 * r + 0.715160 * g + 0.072169 * b)
Z = (0.019334 * r + 0.119193 * g + 0.950227 * b) / 1.088754
#[X * 0.950456] [0.412453 0.357580 0.180423] [R]
#[Y ] = [0.212671 0.715160 0.072169] * [G]
#[Z * 1.088754] [0.019334 0.119193 0.950227] [B]
T = 0.008856 #threshold
if X > T:
fX = math.pow(X, 1./3.)
else:
fX = 7.787 * X + 16./116.
# Compute L
if Y > T:
Y3 = math.pow(Y, 1./3.)
fY = Y3
L = 116. * Y3 - 16.0
else:
fY = 7.787 * Y + 16./116.
L = 903.3 * Y
if Z > T:
fZ = math.pow(Z, 1./3.)
else:
fZ = 7.787 * Z + 16./116.
# Compute a and b
a = 500. * (fX - fY)
b = 200. * (fY - fZ)
return (L,a,b)
def colorDistance(r1,g1,b1 = None, r2 = None, g2 = None,b2 = None):
if type(r1) == tuple and type(g1) == tuple and b1 is None and r2 is None and g2 is None and b2 is None:
(l1,a1,b1) = RGB2LAB(*r1)
(l2,a2,b2) = RGB2LAB(*g1)
else:
(l1,a1,b1) = RGB2LAB(r1,g1,b1)
(l2,a2,b2) = RGB2LAB(r2,g2,b2)
#CIE94
dl = l1-l2
C1 = math.sqrt(a1*a1 + b1*b1)
C2 = math.sqrt(a2*a2 + b2*b2)
dC = C1 - C2
da = a1-a2
db = b1-b2
dH = math.sqrt(max(0, da*da + db*db - dC*dC))
Kl = 1
K1 = 0.045
K2 = 0.015
s1 = dl/Kl
s2 = dC/(1. + K1 * C1)
s3 = dH/(1. + K2 * C1)
return math.sqrt(s1*s1 + s2*s2 + s3*s3)
def parseHexColor(col):
if len(col) != 4 and len(col) != 7 and not col.startswith("#"):
return (0,0,0)
if len(col) == 4:
r = col[1]*2
g = col[2]*2
b = col[3]*2
else:
r = col[1:3]
g = col[3:5]
b = col[5:7]
return (int(r,16), int(g,16), int(b,16))
def getColor(col):
if isinstance(col, str):
if col.lower() in webcolors:
return parseHexColor(webcolors[col.lower()])
else:
return parseHexColor(col)
else:
return col
def getNearestConsoleColor(col):
color = getColor(col)
minidx = 0
mindist = colorDistance(color, getColor(consoleColors[0]))
for i in range(len(consoleColors)):
dist = colorDistance(color, getColor(consoleColors[i]))
if dist < mindist:
mindist = dist
minidx = i
return minidx
if os.name == 'nt':
import msvcrt
from ctypes import windll, Structure, c_short, c_ushort, byref
SHORT = c_short
WORD = c_ushort
class COORD(Structure):
_fields_ = [
("X", SHORT),
("Y", SHORT)]
class SMALL_RECT(Structure):
_fields_ = [
("Left", SHORT),
("Top", SHORT),
("Right", SHORT),
("Bottom", SHORT)]
class CONSOLE_SCREEN_BUFFER_INFO(Structure):
_fields_ = [
("dwSize", COORD),
("dwCursorPosition", COORD),
("wAttributes", WORD),
("srWindow", SMALL_RECT),
("dwMaximumWindowSize", COORD)]
class winConsoleColorizer(object):
def __init__(self, stream):
self.handle = msvcrt.get_osfhandle(stream.fileno())
self.default_attrs = 7#self.get_text_attr()
self.stream = stream
def get_text_attr(self):
csbi = CONSOLE_SCREEN_BUFFER_INFO()
windll.kernel32.GetConsoleScreenBufferInfo(self.handle, byref(csbi))
return csbi.wAttributes
def set_text_attr(self, color):
windll.kernel32.SetConsoleTextAttribute(self.handle, color)
def write(self, *text, **attrs):
if not text:
return
color = attrs.get("color", None)
if color:
col = getNearestConsoleColor(color)
self.stream.flush()
self.set_text_attr(col)
self.stream.write(" ".join([str(t) for t in text]))
if color:
self.stream.flush()
self.set_text_attr(self.default_attrs)
class dummyColorizer(object):
def __init__(self, stream):
self.stream = stream
def write(self, *text, **attrs):
if text:
self.stream.write(" ".join([str(t) for t in text]))
class asciiSeqColorizer(object):
RESET_SEQ = "\033[0m"
#BOLD_SEQ = "\033[1m"
ITALIC_SEQ = "\033[3m"
UNDERLINE_SEQ = "\033[4m"
STRIKEOUT_SEQ = "\033[9m"
COLOR_SEQ0 = "\033[00;%dm" #dark
COLOR_SEQ1 = "\033[01;%dm" #bold and light
def __init__(self, stream):
self.stream = stream
def get_seq(self, code):
if code > 8:
return self.__class__.COLOR_SEQ1 % (30 + code - 9)
else:
return self.__class__.COLOR_SEQ0 % (30 + code)
def write(self, *text, **attrs):
if not text:
return
color = attrs.get("color", None)
if color:
col = getNearestConsoleColor(color)
self.stream.write(self.get_seq(col))
self.stream.write(" ".join([str(t) for t in text]))
if color:
self.stream.write(self.__class__.RESET_SEQ)
def getColorizer(stream):
if stream.isatty():
if os.name == "nt":
return winConsoleColorizer(stream)
else:
return asciiSeqColorizer(stream)
else:
return dummyColorizer(stream)