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thermal.m
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thermal.m
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%THERMAL Black-purple-red-yellow-white colormap
%
% Examples:
% map = thermal;
% map = thermal(len);
% B = thermal(A);
% B = thermal(A, lims);
%
% A colormap designed to replicate the tones of thermal images, as well as
% achieve perceptual uniformity.
%
% The function can additionally be used to convert a real-valued array into
% a truecolor array using the colormap.
%
% IN:
% len - Scalar length of the output colormap. If len == Inf the concise
% table is returned. Default: len = size(get(gcf, 'Colormap'), 1);
% A - Non-scalar numeric array of real values to be converted into
% truecolor.
% lims - 1x2 array of saturation limits to be used on A. Default:
% [min(A(:)) max(A(:))].
%
% OUT:
% map - (len)x3 colormap table.
% B - size(A)x3 truecolor array.
% Copyright: Oliver Woodford, 2009, 2015
function map = thermal(varargin)
map = [ 0 0 0
0.0100 0.0032 0.0160
0.0203 0.0064 0.0318
0.0303 0.0096 0.0473
0.0405 0.0130 0.0604
0.0498 0.0162 0.0717
0.0579 0.0194 0.0817
0.0654 0.0226 0.0907
0.0723 0.0258 0.0991
0.0784 0.0291 0.1072
0.0837 0.0324 0.1155
0.0884 0.0360 0.1238
0.0924 0.0395 0.1323
0.0958 0.0428 0.1409
0.0989 0.0461 0.1496
0.1021 0.0491 0.1584
0.1054 0.0515 0.1672
0.1089 0.0536 0.1761
0.1124 0.0555 0.1852
0.1160 0.0570 0.1944
0.1197 0.0582 0.2036
0.1234 0.0592 0.2129
0.1271 0.0602 0.2222
0.1308 0.0610 0.2317
0.1343 0.0619 0.2412
0.1378 0.0629 0.2508
0.1413 0.0637 0.2605
0.1446 0.0646 0.2702
0.1479 0.0655 0.2800
0.1511 0.0663 0.2899
0.1543 0.0672 0.2999
0.1573 0.0680 0.3099
0.1603 0.0689 0.3200
0.1630 0.0699 0.3303
0.1655 0.0709 0.3406
0.1679 0.0719 0.3510
0.1703 0.0729 0.3615
0.1725 0.0739 0.3721
0.1746 0.0749 0.3827
0.1766 0.0760 0.3934
0.1785 0.0770 0.4042
0.1801 0.0782 0.4150
0.1831 0.0786 0.4255
0.1862 0.0791 0.4361
0.1892 0.0795 0.4466
0.1922 0.0798 0.4572
0.1956 0.0799 0.4677
0.1994 0.0797 0.4781
0.2038 0.0792 0.4884
0.2086 0.0784 0.4985
0.2176 0.0755 0.5070
0.2288 0.0712 0.5143
0.2405 0.0658 0.5212
0.2531 0.0594 0.5275
0.2682 0.0503 0.5316
0.2818 0.0403 0.5367
0.2958 0.0282 0.5412
0.3101 0.0155 0.5450
0.3258 0.0017 0.5464
0.3419 0 0.5447
0.3575 0 0.5427
0.3724 0 0.5402
0.3867 0 0.5373
0.4005 0 0.5342
0.4137 0 0.5308
0.4263 0 0.5272
0.4385 0 0.5234
0.4493 0 0.5190
0.4599 0 0.5146
0.4702 0 0.5102
0.4803 0 0.5058
0.4899 0 0.5014
0.4995 0 0.4969
0.5088 0 0.4925
0.5180 0 0.4880
0.5268 0 0.4835
0.5355 0 0.4790
0.5441 0 0.4745
0.5525 0 0.4700
0.5608 0 0.4655
0.5690 0 0.4610
0.5771 0 0.4564
0.5851 0 0.4519
0.5930 0 0.4473
0.6008 0 0.4426
0.6086 0 0.4380
0.6162 0 0.4334
0.6238 0 0.4288
0.6313 0 0.4242
0.6387 0 0.4195
0.6460 0 0.4149
0.6533 0 0.4102
0.6606 0 0.4055
0.6678 0 0.4008
0.6749 0 0.3961
0.6820 0 0.3914
0.6891 0 0.3867
0.6961 0 0.3819
0.7031 0 0.3772
0.7100 0 0.3724
0.7169 0 0.3676
0.7238 0 0.3628
0.7306 0.0021 0.3580
0.7374 0.0092 0.3532
0.7442 0.0166 0.3483
0.7510 0.0241 0.3435
0.7578 0.0316 0.3386
0.7645 0.0395 0.3337
0.7710 0.0487 0.3287
0.7775 0.0569 0.3238
0.7839 0.0644 0.3188
0.7904 0.0715 0.3138
0.7968 0.0781 0.3087
0.8033 0.0845 0.3036
0.8097 0.0906 0.2985
0.8161 0.0965 0.2934
0.8224 0.1026 0.2882
0.8286 0.1085 0.2829
0.8349 0.1144 0.2776
0.8411 0.1201 0.2723
0.8472 0.1258 0.2669
0.8534 0.1315 0.2614
0.8594 0.1371 0.2559
0.8655 0.1427 0.2503
0.8714 0.1484 0.2446
0.8772 0.1542 0.2389
0.8830 0.1600 0.2330
0.8887 0.1659 0.2271
0.8943 0.1719 0.2211
0.8999 0.1778 0.2149
0.9053 0.1838 0.2086
0.9107 0.1899 0.2022
0.9160 0.1961 0.1956
0.9210 0.2026 0.1889
0.9260 0.2091 0.1820
0.9309 0.2157 0.1749
0.9356 0.2224 0.1676
0.9403 0.2291 0.1600
0.9448 0.2360 0.1522
0.9491 0.2429 0.1441
0.9533 0.2500 0.1355
0.9569 0.2579 0.1267
0.9604 0.2659 0.1175
0.9637 0.2739 0.1076
0.9668 0.2819 0.0970
0.9698 0.2900 0.0854
0.9727 0.2981 0.0726
0.9753 0.3064 0.0579
0.9780 0.3144 0.0401
0.9783 0.3251 0.0256
0.9785 0.3356 0.0116
0.9786 0.3460 0
0.9785 0.3563 0
0.9783 0.3665 0
0.9779 0.3766 0
0.9774 0.3865 0
0.9769 0.3964 0
0.9759 0.4063 0
0.9748 0.4163 0
0.9736 0.4260 0
0.9723 0.4357 0
0.9708 0.4452 0
0.9694 0.4547 0
0.9678 0.4640 0
0.9661 0.4733 0
0.9643 0.4825 0
0.9623 0.4917 0
0.9602 0.5007 0
0.9581 0.5097 0
0.9559 0.5186 0
0.9537 0.5274 0
0.9513 0.5361 0
0.9489 0.5447 0
0.9465 0.5532 0
0.9439 0.5618 0
0.9413 0.5702 0
0.9386 0.5785 0
0.9359 0.5868 0
0.9331 0.5950 0
0.9303 0.6032 0
0.9273 0.6113 0
0.9244 0.6193 0
0.9214 0.6273 0
0.9183 0.6352 0
0.9152 0.6430 0
0.9121 0.6508 0
0.9088 0.6585 0
0.9056 0.6662 0
0.9022 0.6739 0
0.8988 0.6815 0.0167
0.8956 0.6889 0.0443
0.8924 0.6962 0.0688
0.8892 0.7035 0.0889
0.8860 0.7107 0.1068
0.8827 0.7179 0.1231
0.8794 0.7250 0.1387
0.8761 0.7321 0.1536
0.8728 0.7391 0.1681
0.8695 0.7460 0.1824
0.8662 0.7529 0.1965
0.8630 0.7597 0.2105
0.8598 0.7664 0.2243
0.8567 0.7731 0.2382
0.8536 0.7797 0.2521
0.8506 0.7862 0.2661
0.8476 0.7926 0.2800
0.8450 0.7989 0.2942
0.8428 0.8050 0.3090
0.8406 0.8110 0.3237
0.8386 0.8170 0.3383
0.8366 0.8229 0.3530
0.8347 0.8288 0.3677
0.8330 0.8345 0.3824
0.8312 0.8403 0.3970
0.8297 0.8459 0.4118
0.8301 0.8509 0.4273
0.8305 0.8559 0.4426
0.8310 0.8609 0.4579
0.8315 0.8658 0.4732
0.8322 0.8707 0.4884
0.8330 0.8755 0.5035
0.8338 0.8803 0.5186
0.8345 0.8851 0.5336
0.8376 0.8892 0.5486
0.8408 0.8933 0.5635
0.8441 0.8974 0.5783
0.8475 0.9014 0.5931
0.8510 0.9054 0.6078
0.8546 0.9094 0.6224
0.8582 0.9133 0.6370
0.8618 0.9173 0.6516
0.8665 0.9209 0.6659
0.8716 0.9244 0.6800
0.8768 0.9279 0.6941
0.8821 0.9314 0.7082
0.8874 0.9348 0.7222
0.8922 0.9384 0.7364
0.8971 0.9419 0.7505
0.9020 0.9455 0.7647
0.9072 0.9489 0.7787
0.9127 0.9523 0.7927
0.9182 0.9556 0.8066
0.9238 0.9589 0.8205
0.9294 0.9622 0.8344
0.9351 0.9654 0.8482
0.9408 0.9687 0.8621
0.9465 0.9719 0.8759
0.9523 0.9751 0.8897
0.9583 0.9783 0.9035
0.9642 0.9814 0.9173
0.9702 0.9845 0.9310
0.9762 0.9876 0.9448
0.9822 0.9907 0.9586
0.9881 0.9938 0.9724
0.9941 0.9969 0.9862
1.0000 1.0000 1.0000];
map = colormap_helper(map, varargin{:});