speedup: remove colormatch deps. rgb2lab function
This commit is contained in:
Gordon Shumway
GitHub
parent
34f2a6ab95
commit
bc9e4fe21c
225
ASCII/plugin.py
225
ASCII/plugin.py
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@ -18,8 +18,6 @@ from PIL import Image, ImageOps
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import numpy as np
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import sys, math
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from fake_useragent import UserAgent
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from colormath.color_objects import sRGBColor, LabColor
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from colormath.color_conversions import convert_color
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from colour.difference import *
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import re
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@ -38,89 +36,90 @@ class ASCII(callbacks.Plugin):
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def __init__(self, irc):
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self.__parent = super(ASCII, self)
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self.__parent.__init__(irc)
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self.ircColors= {(1993.20515351498,2324.0983231476234,1950.0779087841693):16,
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(2302.159132332113,1476.5998328806731,2094.817440516089):17,
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(3267.109569734987,-625.5719921685046,2741.5824054551854):18,
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(3117.7906623358294,-1524.3182007475084,2563.4872768819705):19,
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(2994.225776415631,-2500.8929369695743,2413.738641368567):20,
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(3026.0461300232373,-2106.053265646869,1016.9116217498115):21,
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(3092.2778750318885,-1395.2984432353226,-410.2808083391245):22,
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(2082.37407522394,439.80707297830793,-1983.2971244240234):23,
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(1385.5715072995845,2298.009119093381,-3130.08523478244):24,
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(1761.7248957199076,2495.1524432892943,-2494.7963736847237):25,
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(2198.7916393341657,2850.6336820262986,-1765.3360075524952):26,
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(2055.801787008181,2491.6677227532045,-158.86279448684633):27,
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(2958.9498780747585,3441.1996261238046,2887.4025267278366):28,
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(3490.7754041570597,1995.586399321347,3144.023619818683):29,
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(4845.169302249827,-926.259480557718,4059.3516438937377):30,
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(4620.482019554244,-2281.747228870049,3791.325963678294):31,
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(4441.121161001645,-3702.9723544655367,3573.926467529447):32,
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(4489.963665823597,-3098.035370892731,1453.7194043799368):33,
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(4586.302989902044,-2065.9627148173527,-607.4864175067376):34,
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(3098.2589552331815,634.8559351078204,-2924.8401977939):35,
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(2059.250990402592,3402.5703829703853,-4634.592277094812):36,
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(2613.821127903904,3692.817296863682,-3697.953525308647):37,
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(3263.3535821224173,4220.81951658537,-2613.862567115958):38,
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(3052.7880497642973,3692.3353415279757,-255.20463970260963):39,
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(4230.166177007632,4911.647610760525,4121.209247509218):40,
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(5140.420692098141,2469.29414128601,4576.863521782283):41,
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(6922.379978784402,-1322.0564509214903,5793.940186325644):42,
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(6595.196756134379,-3301.6293161796852,5403.579861388848):43,
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(6345.679321104374,-5285.277604778105,5101.0895334333245):44,
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(6414.068737559316,-4437.401859025286,2114.577589536168):45,
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(6552.8983320653,-2948.7626219415083,-867.069491832234):46,
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(4407.084374518514,955.4196746325267,-4210.022191539629):47,
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(2946.0198408020497,4856.511829505751,-6614.98505109478):48,
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(3737.0822740921226,5270.450895642849,-5278.9196336943):49,
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(4664.64365234563,6024.404378260297,-3730.783804336487):50,
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(4362.152983533213,5264.9896683827,-330.4757953207826):51,
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(5569.417504595725,6460.793430576633,5421.048850085641):52,
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(6775.61797290782,3226.238340029962,6025.75867889489):53,
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(9110.762206548767,-1739.0363295306556,7621.363269416317):54,
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(8688.56571353183,-4286.355755413659,7117.728526067228):55,
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(8352.168733274038,-6952.267249978224,6709.985804801282):56,
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(8443.195089050523,-5824.430407957365,2749.492570275423):57,
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(8624.745133456714,-3878.809655324538,-1140.5453567984496):58,
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(5814.154106925882,1229.6993153257815,-5518.472254545321):59,
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(3880.248233844353,6388.267687373855,-8701.367717798912):60,
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(4922.735757149115,6934.097154957253,-6940.674046100774):61,
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(6140.930251611103,7924.516438217041,-4907.482255272506):62,
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(5746.387693687689,6934.366712732735,-492.7614873204078):63,
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(6074.110810805622,5313.137095279206,3103.1603383735187):64,
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(7549.6166232716405,1638.3506351207516,4766.116472071773):65,
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(9144.22544761627,-1470.995605268513,5615.164875231808):66,
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(8851.666121034279,-3149.3613711592443,5791.451685441684):67,
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(8500.557984917883,-5550.555360677123,4790.802527852141):68,
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(8594.087862835102,-4460.502732282599,1202.8053973127812):69,
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(8724.82598229055,-3235.6496256362348,-980.5575778174244):70,
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(6874.520048611572,-289.5387261981774,-3821.4400161526414):71,
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(4916.297192060128,4307.513997705836,-6974.795972582456):72,
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(5819.517276565197,5772.740696787963,-5464.249084289627):73,
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(6666.663989554589,6410.850719920749,-4071.3110342969558):74,
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(6280.324414591433,6015.204491438752,-1476.4275931956176):75,
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(7180.305703653475,3151.7678127953095,1373.1975029781495):76,
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(8248.198938024443,714.6748507078441,2817.036007030724):77,
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(9182.988945110867,-1167.764518966436,4015.5942289850245):78,
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(9007.020388812489,-2093.713817441767,3756.923645906545):79,
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(8680.802265994806,-4081.390060312401,3273.7168714125773):80,
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(8780.409047221645,-3130.134177574469,700.5659508608431):81,
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(8857.679484481941,-2443.415301399,-768.5984857936376):82,
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(7839.323835639718,-570.9192199992401,-2304.6246202346338):83,
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(6625.666242680838,2027.7311898612672,-4194.929725399932):84,
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(7108.652147423247,3498.6937253971073,-3402.110197127864):85,
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(7434.816150050725,4358.722695392508,-2869.8331598451205):86,
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(7167.213158394653,4091.808365037888,-1234.4936780628914):87,
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(0.0,0.0,0.0):88,
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(1158.5273281050518,-0.004651426605661868,-0.08668679001253565):89,
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(2112.0476709317145,-0.008427609405003977,-0.15706200883656152):90,
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(2688.734626403421,-0.010711436251753526,-0.19962478265682648):91,
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(3575.6716231579267,-0.014223932083723412,-0.26508577224220176):92,
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(4445.718937221886,-0.017669540483211676,-0.32930020728230147):93,
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(5409.950553527043,-0.021488142643022456,-0.4004659789487164):94,
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(6397.481176248715,-0.025399014791815944,-0.47335134966175474):95,
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(7317.0369197362015,-0.0290406891458872,-0.5412197880815484):96,
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(8480.24950353612,-0.03364730649479952,-0.6270714856782433):97,
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(9341.568974319263,-0.037058350415009045,-0.6906417562959177):98}
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self.ircColors= {
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(71,0,0):16,
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(71,33,0):17,
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(71,71,0):18,
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(50,71,0):19,
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(0,71,0):20,
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(0,71,44):21,
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(0,71,71):22,
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(0,39,71):23,
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(0,0,71):24,
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(46,0,71):25,
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(71,0,71):26,
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(71,0,42):27,
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(116,0,0):28,
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(116,58,0):29,
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(116,116,0):30,
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(81,116,0):31,
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(0,116,0):32,
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(0,116,73):33,
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(0,116,116):34,
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(0,64,116):35,
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(0,0,116):36,
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(75,0,116):37,
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(116,0,116):38,
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(116,0,69):39,
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(181,0,0):40,
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(181,99,0):41,
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(181,181,0):42,
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(125,181,0):43,
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(0,181,0):44,
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(0,181,113):45,
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(0,181,181):46,
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(0,99,181):47,
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(0,0,181):48,
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(117,0,181):49,
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(181,0,181):50,
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(181,0,107):51,
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(255,0,0):52,
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(255,140,0):53,
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(255,255,0):54,
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(178,255,0):55,
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(0,255,0):56,
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(0,255,160):57,
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(0,255,255):58,
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(0,140,255):59,
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(0,0,255):60,
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(165,0,255):61,
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(255,0,255):62,
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(255,0,152):63,
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(255,89,89):64,
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(255,180,89):65,
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(255,255,113):66,
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(207,255,96):67,
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(111,255,111):68,
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(101,255,201):69,
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(109,255,255):70,
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(89,180,255):71,
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(89,89,255):72,
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(196,89,255):73,
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(255,102,255):74,
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(255,89,188):75,
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(255,156,156):76,
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(255,211,156):77,
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(255,255,156):78,
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(226,255,156):79,
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(156,255,156):80,
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(156,255,219):81,
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(156,255,255):82,
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(156,211,255):83,
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(156,156,255):84,
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(220,156,255):85,
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(255,156,255):86,
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(255,148,211):87,
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(0,0,0):88,
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(19,19,19):89,
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(40,40,40):90,
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(54,54,54):91,
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(77,77,77):92,
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(101,101,101):93,
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(129,129,129):94,
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(159,159,159):95,
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(188,188,188):96,
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(226,226,226):97,
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(255,255,255):98}
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def ascii(self, irc, msg, args, optlist, text):
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"""[--font <font>] [--color <color1,color2>] [<text>]
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@ -182,33 +181,61 @@ class ASCII(callbacks.Plugin):
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"""
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speed = speed
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colors = list(self.ircColors.keys())
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closest_colors = sorted(colors, key=lambda color: self.distance(color, pixel, speed))
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closest_colors = sorted(colors, key=lambda color: self.distance(self.rgb2lab(color), self.rgb2lab(pixel), speed))
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closest_color = closest_colors[0]
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return self.ircColors[closest_color]
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def rgb2lab (self, inputColor) :
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num = 0
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RGB = [0, 0, 0]
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for value in inputColor :
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value = float(value) / 255
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if value > 0.04045 :
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value = ( ( value + 0.055 ) / 1.055 ) ** 2.4
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else :
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value = value / 12.92
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RGB[num] = value * 100
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num = num + 1
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XYZ = [0, 0, 0,]
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X = RGB [0] * 0.4124 + RGB [1] * 0.3576 + RGB [2] * 0.1805
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Y = RGB [0] * 0.2126 + RGB [1] * 0.7152 + RGB [2] * 0.0722
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Z = RGB [0] * 0.0193 + RGB [1] * 0.1192 + RGB [2] * 0.9505
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XYZ[ 0 ] = round( X, 4 )
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XYZ[ 1 ] = round( Y, 4 )
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XYZ[ 2 ] = round( Z, 4 )
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XYZ[ 0 ] = float( XYZ[ 0 ] ) / 95.047 # ref_X = 95.047 Observer= 2°, Illuminant= D65
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XYZ[ 1 ] = float( XYZ[ 1 ] ) / 100.0 # ref_Y = 100.000
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XYZ[ 2 ] = float( XYZ[ 2 ] ) / 108.883 # ref_Z = 108.883
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num = 0
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for value in XYZ :
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if value > 0.008856 :
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value = value ** ( 0.3333333333333333 )
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else :
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value = ( 7.787 * value ) + ( 16 / 116 )
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XYZ[num] = value
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num = num + 1
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Lab = [0, 0, 0]
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L = ( 116 * XYZ[ 1 ] ) - 16
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a = 500 * ( XYZ[ 0 ] - XYZ[ 1 ] )
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b = 200 * ( XYZ[ 1 ] - XYZ[ 2 ] )
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Lab [ 0 ] = round( L, 4 )
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Lab [ 1 ] = round( a, 4 )
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Lab [ 2 ] = round( b, 4 )
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return Lab
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def distance(self, c1, c2, speed):
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if speed == 'fast':
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c2 = sRGBColor(c2[0],c2[1],c2[2])
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c2 = convert_color(c2, LabColor)
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c2 = (c2.lab_l, c2.lab_a, c2.lab_b)
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delta_e = delta_E_CIE1976(c1, c2)
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elif speed == 'medium':
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c2 = sRGBColor(c2[0],c2[1],c2[2])
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c2 = convert_color(c2, LabColor)
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c2 = (c2.lab_l, c2.lab_a, c2.lab_b)
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delta_e = delta_E_CMC(c1, c2)
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else:
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c2 = sRGBColor(c2[0],c2[1],c2[2])
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c2 = convert_color(c2, LabColor)
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c2 = (c2.lab_l, c2.lab_a, c2.lab_b)
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delta_e = delta_E_CIE2000(c1, c2)
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return delta_e
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def img(self, irc, msg, args, optlist, url):
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"""[--cols <number of columns>] [--invert] [--slow] (<url>)
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"""[--cols <number of columns>] [--invert] (<url>)
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Image to Color ASCII Art. --cols to set number of columns wide. --invert to invert the greyscale.
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--slow for cieCMC delta-e. --insane for cie2000 delta-e. Don't use insane, it takes way too long
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for little improvement.
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"""
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optlist = dict(optlist)
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if 'slow' in optlist:
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@ -305,7 +332,7 @@ class ASCII(callbacks.Plugin):
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img = wrap(img,[getopts({'cols':'int', 'invert':'', 'slow':'', 'insane':''}), ('text')])
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def ansi(self, irc, msg, args, optlist, url):
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"""[--cols <number of columns>] [--slow]
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"""[--cols <number of columns>] [--invert] <url>
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Converts image to ANSI art
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"""
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optlist = dict(optlist)
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