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% Version 3.3.2 prologue for troff files.
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%
% A few arrays used to adjust reference points and character widths in some
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% Move braceleftbt a bit - default PostScript character is off a bit.
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/Sdefs [
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	/bracketrightex		[220 -125 500 0]
	/radical		[0 0 550 0]
	/radicalex		[-50 0 500 0]
	/parenleftex		[-20 -170 0 0]
	/integral		[100 -50 500 0]
	/infinity		[10 -75 730 0]
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/S1defs [
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	/endash			[7 90 650 0]
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%
% Tries to round clipping path dimensions, as stored in array pagebbox, so they
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/roundpagebbox {
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%%EndProlog
%%BeginSetup
mark
%
% Encoding vector and redefinition of findfont for the ISO Latin1 standard.
% The 18 characters missing from ROM based fonts on older printers are noted
% below.
%

/ISOLatin1Encoding [
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	/braceleft
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	/cedilla
	/onesuperior		% missing
	/ordmasculine
	/guillemotright
	/onequarter		% missing
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	/AE
	/Ccedilla
	/Egrave
	/Eacute
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	/Edieresis
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	/Idieresis
	/Eth			% missing
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/NewFontDirectory FontDirectory maxlength dict def

%
% Apparently no guarantee findfont is defined in systemdict so the obvious
%
%	systemdict /findfont get exec
%
% can generate an error. So far the only exception is a VT600 (version 48.0).
%

userdict /@RealFindfont known not {
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} if

/findfont {
	dup NewFontDirectory exch known not {
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setup
%%EndSetup
%%Page: 1 1
/saveobj save def
mark
1 pagesetup
12 /Times-Bold f
(Pnmhistmap User) 2202 1230 w
(Manual) 3156 1230 w
10 /Times-Bold f
(pnmhistmap) 720 1920 w
10 /Times-Roman f
(Updated: 25 October 1993) 720 2076 w
(Table Of Contents) 720 2196 w
10 /Times-Bold f
(NAME) 720 2436 w
10 /Times-Roman f
(pnmhistmap \255 draw a histogram for a PGM or PPM file) 720 2592 w
10 /Times-Bold f
(SYNOPSIS) 720 2832 w
(pnmhistmap) 720 2988 w
10 /Times-Roman f
([) 1285 2988 w
10 /Times-Bold f
(\255black) 1318 2988 w
10 /Times-Roman f
(] [) 1585 2988 w
10 /Times-Bold f
(\255white) 1676 2988 w
10 /Times-Roman f
(] [) 1942 2988 w
10 /Times-Bold f
(\255max) 2033 2988 w
10 /Times-Italic f
(N) 2274 2988 w
10 /Times-Roman f
(] [) 2341 2988 w
10 /Times-Bold f
(\255verbose) 2432 2988 w
10 /Times-Roman f
(] [) 2792 2988 w
10 /Times-Italic f
(pnmfile) 2883 2988 w
10 /Times-Roman f
(]) 3183 2988 w
(Minimum) 720 3144 w
(unique) 1162 3144 w
(abbreviation) 1475 3144 w
(of) 2015 3144 w
(option) 2140 3144 w
(is) 2438 3144 w
(acceptable.) 2547 3144 w
(You) 3059 3144 w
(may) 3273 3144 w
(use) 3487 3144 w
(double) 3662 3144 w
(hyphens) 3976 3144 w
(instead) 4351 3144 w
(of) 4676 3144 w
(single) 4801 3144 w
(hyphen) 720 3264 w
(to) 1042 3264 w
(denote) 1148 3264 w
(options.) 1442 3264 w
(You) 1815 3264 w
(may) 2015 3264 w
(use) 2215 3264 w
(white) 2376 3264 w
(space) 2626 3264 w
(in) 2875 3264 w
(place) 2981 3264 w
(of) 3219 3264 w
(the) 3330 3264 w
(equals) 3480 3264 w
(sign) 3763 3264 w
(to) 3958 3264 w
(separate) 4064 3264 w
(an) 4418 3264 w
(option) 4540 3264 w
(name) 4824 3264 w
(from its value.) 720 3384 w
10 /Times-Bold f
(DESCRIPTION) 720 3624 w
10 /Times-Roman f
(This program is part of Netpbm.) 720 3816 w
10 /Times-Bold f
(pnmhistmap) 720 3972 w
10 /Times-Roman f
(reads) 1296 3972 w
(a) 1542 3972 w
(PNM) 1622 3972 w
(image) 1875 3972 w
(as) 2156 3972 w
(input) 2276 3972 w
(and) 2519 3972 w
(produces) 2700 3972 w
(an) 3097 3972 w
(image) 3228 3972 w
(showing) 3509 3972 w
(a) 3885 3972 w
(histogram) 3966 3972 w
(of) 4403 3972 w
(the) 4523 3972 w
(color) 4682 3972 w
(\(or) 4924 3972 w
(gray\)) 720 4092 w
(values) 965 4092 w
(in) 1255 4092 w
(the) 1368 4092 w
(input.) 1525 4092 w
(A) 1815 4092 w
(PGM) 1921 4092 w
(input) 2172 4092 w
(results) 2412 4092 w
(in) 2707 4092 w
(a) 2819 4092 w
(PBM) 2897 4092 w
(output.) 3143 4092 w
(A) 3483 4092 w
(PPM) 3589 4092 w
(input) 3824 4092 w
(results) 4064 4092 w
(in) 4359 4092 w
(a) 4471 4092 w
(PPM) 4549 4092 w
(output) 4784 4092 w
(with) 720 4212 w
(three) 928 4212 w
(overlaid) 1157 4212 w
(histograms:) 1514 4212 w
(a) 2011 4212 w
(red) 2085 4212 w
(one) 2242 4212 w
(for) 2416 4212 w
(the) 2562 4212 w
(red) 2714 4212 w
(input,) 2871 4212 w
(a) 3132 4212 w
(green) 3206 4212 w
(one) 3457 4212 w
(for) 3631 4212 w
(the) 3777 4212 w
(green) 3929 4212 w
(input,) 4181 4212 w
(and) 4443 4212 w
(a) 4618 4212 w
(blue) 4693 4212 w
(one) 4896 4212 w
(for the blue input.) 720 4332 w
(For example, from the following image produces the following histogram:) 720 4488 w
(If the input is PBM,) 720 4680 w
10 /Times-Bold f
(pnmhistmap) 1543 4680 w
10 /Times-Roman f
(produces an error message and no output image.) 2108 4680 w
10 /Times-Bold f
(OPTIONS) 720 4920 w
(\255red) 970 5112 w
(\255green) 970 5268 w
(\255blue) 970 5424 w
10 /Times-Roman f
(Include) 1220 5424 w
(the) 1585 5424 w
(indicated) 1773 5424 w
(color) 2205 5424 w
(component) 2476 5424 w
(in) 2987 5424 w
(the) 3132 5424 w
(output.) 3321 5424 w
(If) 3694 5424 w
(you) 3827 5424 w
(specify) 4044 5424 w
(none) 4399 5424 w
(of) 4660 5424 w
(these,) 4810 5424 w
10 /Times-Bold f
(pnmhistmap) 1220 5544 w
10 /Times-Roman f
(include all three.) 1785 5544 w
(These options are meaningless if the input is PGM.) 970 5700 w
(These) 970 5856 w
(options) 1263 5856 w
(were) 1613 5856 w
(new) 1861 5856 w
(in) 2082 5856 w
(Netpbm) 2215 5856 w
(10.26) 2592 5856 w
(\(January) 2872 5856 w
(2005\).) 3270 5856 w
(Before) 3609 5856 w
(that,) 3936 5856 w
10 /Times-Bold f
(pnmhistmap) 4167 5856 w
10 /Times-Roman f
(always) 4763 5856 w
(included all three color components.) 970 5976 w
10 /Times-Bold f
(\255dots) 970 6132 w
10 /Times-Roman f
(Plot the histogram as dots.) 1220 6132 w
(By default,) 2329 6132 w
10 /Times-Bold f
(pnmhistmap) 2798 6132 w
10 /Times-Roman f
(plots bars.) 3363 6132 w
(Example of dots:) 970 6288 w
(This) 970 6444 w
(option) 1188 6444 w
(was) 1484 6444 w
(new) 1679 6444 w
(in) 1885 6444 w
(Netpbm) 2003 6444 w
(10.26) 2365 6444 w
(\(January) 2630 6444 w
(2005\).) 3013 6444 w
(Before) 3336 6444 w
(that,) 3647 6444 w
10 /Times-Bold f
(pnmhistmap) 3863 6444 w
10 /Times-Roman f
(always) 4444 6444 w
(plotted) 4762 6444 w
(bars.) 970 6564 w
10 /Times-Bold f
(\255lval) 970 6720 w
10 /Times-Italic f
(minpixval) 1184 6720 w
10 /Times-Bold f
(\255rval) 970 6876 w
10 /Times-Italic f
(maxpixval) 1204 6876 w
10 /Times-Roman f
(These) 1614 6876 w
(options) 1881 6876 w
(specify) 2205 6876 w
(the) 2522 6876 w
(range) 2673 6876 w
(of) 2923 6876 w
(intensity) 3035 6876 w
(values) 3409 6876 w
(to) 3694 6876 w
(include.) 3802 6876 w
10 /Times-Bold f
(pnmhistmap) 4176 6876 w
10 /Times-Roman f
(ignores) 4746 6876 w
(intensities) 1220 6996 w
(less) 1664 6996 w
(than) 1851 6996 w
10 /Times-Italic f
(minpixval) 2060 6996 w
10 /Times-Roman f
(and) 2491 6996 w
(greater) 2672 6996 w
(than) 2985 6996 w
10 /Times-Italic f
(maxpixval) 3194 6996 w
10 /Times-Roman f
(.) 3604 6996 w
(So) 3691 6996 w
(the) 3834 6996 w
(left) 3993 6996 w
(side) 4163 6996 w
(of) 4361 6996 w
(the) 4481 6996 w
(histogram) 4640 6996 w
(corresponds to) 1220 7116 w
10 /Times-Italic f
(minpixval) 1830 7116 w
10 /Times-Roman f
(and the right side corresponds to) 2249 7116 w
10 /Times-Italic f
(maxpixval) 3575 7116 w
10 /Times-Roman f
(.) 3985 7116 w
(By default,) 970 7272 w
10 /Times-Bold f
(pnmhistmap) 1439 7272 w
10 /Times-Roman f
(plots the entire possible range: zero to the maxval.) 2004 7272 w
cleartomark
showpage
saveobj restore
%%EndPage: 1 1
%%Page: 2 2
/saveobj save def
mark
2 pagesetup
10 /Times-Roman f
(\255 2 \255) 2797 480 w
(These) 970 840 w
(options) 1237 840 w
(were) 1561 840 w
(new) 1783 840 w
(in) 1978 840 w
(Netpbm) 2086 840 w
(10.26) 2438 840 w
(\(January) 2693 840 w
(2005\).) 3066 840 w
(Before) 3379 840 w
(that,) 3680 840 w
10 /Times-Bold f
(pnmhistmap) 3885 840 w
10 /Times-Roman f
(always) 4455 840 w
(plotted) 4762 840 w
(from zero to the maxval.) 970 960 w
(\255height) 970 1116 w
(\255widthThese options specify the dimensions, in pixels of the histogram image.) 970 1272 w
(The default height is 200 pixels.) 970 1428 w
(The) 970 1584 w
(default) 1152 1584 w
(width) 1456 1584 w
(is) 1711 1584 w
(one) 1805 1584 w
(pixel) 1976 1584 w
(for) 2203 1584 w
(each) 2346 1584 w
(plotted) 2555 1584 w
(intensity) 2860 1584 w
(value) 3232 1584 w
(\(so) 3475 1584 w
(it's) 3624 1584 w
(controlled) 3779 1584 w
(by) 4211 1584 w
(the) 4338 1584 w
(maxval) 4487 1584 w
(of) 4808 1584 w
(the) 4918 1584 w
(image) 970 1704 w
(and) 1248 1704 w
(the) 1426 1704 w
10 /Times-Bold f
(\255lval) 1582 1704 w
10 /Times-Roman f
(and) 1805 1704 w
10 /Times-Bold f
(\255rval) 1983 1704 w
10 /Times-Roman f
(options\).) 2222 1704 w
(The) 2634 1704 w
("count) 2823 1704 w
(buckets") 3120 1704 w
(in) 3500 1704 w
(the) 3611 1704 w
(histogram) 3766 1704 w
(are) 4199 1704 w
(always) 4353 1704 w
(one) 4663 1704 w
(pixel) 4840 1704 w
(wide.) 970 1824 w
(If) 1251 1824 w
(you) 1354 1824 w
(specify) 1541 1824 w
(a) 1866 1824 w
(width) 1947 1824 w
(less) 2212 1824 w
(than) 2399 1824 w
(the) 2609 1824 w
(number) 2769 1824 w
(of) 3112 1824 w
(plotted) 3233 1824 w
(intensity) 3549 1824 w
(values,) 3932 1824 w
(a) 4250 1824 w
(bucket) 4332 1824 w
(represents) 4636 1824 w
(more) 970 1944 w
(than) 1202 1944 w
(one) 1401 1944 w
(intensity) 1572 1944 w
(value.) 1944 1944 w
(If) 2237 1944 w
(you) 2330 1944 w
(specify) 2506 1944 w
(a) 2820 1944 w
(width) 2890 1944 w
(greater) 3144 1944 w
(that) 3446 1944 w
(the) 3622 1944 w
(number) 3770 1944 w
(of) 4101 1944 w
(plotted) 4210 1944 w
(intensity) 4514 1944 w
(val\255) 4885 1944 w
(ues, some buckets represent no color \(the count is zero\).) 970 2064 w
(This option was new in Netpbm 10.26 \(January 2005\).) 970 2220 w
(Before that, the dimensions were always) 3201 2220 w
(what) 4846 2220 w
(the default is today.) 970 2340 w
10 /Times-Bold f
(\255black) 970 2496 w
10 /Times-Roman f
(Ignore the count of black pixels when scaling the histogram.) 1262 2496 w
10 /Times-Bold f
(\255white) 970 2652 w
10 /Times-Roman f
(Ignore the count of white pixels when scaling the histogram.) 1236 2652 w
(The) 720 2808 w
(\255black) 903 2808 w
(and) 1180 2808 w
(\255white) 1352 2808 w
(options,) 1635 2808 w
(which) 1983 2808 w
(can) 2255 2808 w
(be) 2421 2808 w
(used) 2543 2808 w
(separately) 2755 2808 w
(or) 3188 2808 w
(together,) 3300 2808 w
(are) 3681 2808 w
(useful) 3831 2808 w
(for) 4104 2808 w
(images) 4249 2808 w
(with) 4561 2808 w
(a) 4768 2808 w
(large) 4841 2808 w
(percentage) 720 2928 w
(of) 1182 2928 w
(pixels) 1296 2928 w
(whose) 1566 2928 w
(value) 1852 2928 w
(is) 2099 2928 w
(zero) 2197 2928 w
(or) 2398 2928 w
(255,) 2511 2928 w
(which) 2716 2928 w
(can) 2990 2928 w
(cause) 3158 2928 w
(the) 3409 2928 w
(remaining) 3561 2928 w
(histogram) 3996 2928 w
(data) 4426 2928 w
(to) 4622 2928 w
(become) 4730 2928 w
(unreadbaly) 720 3048 w
(small.) 1191 3048 w
(Note) 1486 3048 w
(that,) 1708 3048 w
(for) 1912 3048 w
(pixmap) 2057 3048 w
(inputs,) 2386 3048 w
(these) 2685 3048 w
(options) 2919 3048 w
(apply) 3243 3048 w
(to) 3494 3048 w
(all) 3601 3048 w
(colors;) 3730 3048 w
(if,) 4031 3048 w
(for) 4146 3048 w
(example,) 4291 3048 w
(the) 4683 3048 w
(input) 4834 3048 w
(has a large number of bright\255red areas, you will probably want to use the \255white option.) 720 3168 w
10 /Times-Bold f
(\255max) 970 3324 w
(N) 1225 3324 w
10 /Times-Roman f
(Force) 1297 3324 w
(the) 1563 3324 w
(scaling) 1724 3324 w
(of) 2046 3324 w
(the) 2168 3324 w
(histogram) 2329 3324 w
(to) 2768 3324 w
(use) 2885 3324 w
(N) 3057 3324 w
(as) 3168 3324 w
(the) 3290 3324 w
(largest\255count) 3451 3324 w
(value.) 4011 3324 w
(This) 4316 3324 w
(is) 4533 3324 w
(useful) 4640 3324 w
(for) 4924 3324 w
(inputs with a large percentage of single\255color pixels which are not black or white.) 1220 3444 w
10 /Times-Bold f
(\255verbose) 970 3600 w
10 /Times-Roman f
(Report) 1330 3600 w
(the) 1629 3600 w
(progress) 1778 3600 w
(of) 2143 3600 w
(making) 2253 3600 w
(the) 2580 3600 w
(histogram,) 2729 3600 w
(including) 3181 3600 w
(the) 3586 3600 w
(largest\255count) 3735 3600 w
(value) 4283 3600 w
(used) 4526 3600 w
(to) 4736 3600 w
(scale) 4841 3600 w
(the output.) 1220 3720 w
10 /Times-Bold f
(LIMITATIONS) 720 3960 w
(pnmhistmap) 720 4152 w
10 /Times-Roman f
(assumes) 1289 4152 w
(maxval) 1651 4152 w
(is) 1974 4152 w
(always) 2070 4152 w
(255.) 2377 4152 w
(Images) 2607 4152 w
(with) 2925 4152 w
(a) 3133 4152 w
(smaller) 3207 4152 w
(maxval) 3531 4152 w
(will) 3855 4152 w
(only) 4041 4152 w
(use) 4249 4152 w
(the) 4412 4152 w
(lower\255value) 4564 4152 w
(side) 720 4272 w
(of) 913 4272 w
(the) 1028 4272 w
(histogram.) 1182 4272 w
(You) 1664 4272 w
(can) 1868 4272 w
(overcome) 2038 4272 w
(this) 2463 4272 w
(either) 2640 4272 w
(by) 2899 4272 w
(piping) 3031 4272 w
(the) 3319 4272 w
(input) 3473 4272 w
(through) 3710 4272 w
10 /Times-Bold f
(pamdepth) 4052 4272 w
10 /Times-Roman f
(or) 4517 4272 w
(by) 4631 4272 w
(cutting) 4762 4272 w
(and scaling the lower\255value side of the histogram.) 720 4392 w
(Neither is a particularly elegant solution to the problem.) 2761 4392 w
(The program does not allow you to specify the output size.) 720 4548 w
10 /Times-Bold f
(SEE ALSO) 720 4788 w
10 /Times-Roman f
(pgmhist, ppmhist, pgm, ppm) 720 4944 w
10 /Times-Bold f
(AUTHOR) 720 5184 w
10 /Times-Roman f
(Wilson H. Bent. Jr. \(whb@usc.edu\).) 720 5376 w
10 /S1 f
(________________________________________________________________________) 720 5496 w
10 /Times-Bold f
(Table Of Contents) 720 5736 w
10 /LucidaSansUnicode22 f
(\031) 720 5928 w
10 /Times-Roman f
(NAME) 970 5928 w
10 /LucidaSansUnicode22 f
(\031) 720 6084 w
10 /Times-Roman f
(SYNOPSIS) 970 6084 w
10 /LucidaSansUnicode22 f
(\031) 720 6240 w
10 /Times-Roman f
(DESCRIPTION) 970 6240 w
10 /LucidaSansUnicode22 f
(\031) 720 6396 w
10 /Times-Roman f
(OPTIONS) 970 6396 w
10 /LucidaSansUnicode22 f
(\031) 720 6552 w
10 /Times-Roman f
(BUGS) 970 6552 w
10 /LucidaSansUnicode22 f
(\031) 720 6708 w
10 /Times-Roman f
(SEE ALSO) 970 6708 w
10 /LucidaSansUnicode22 f
(\031) 720 6864 w
10 /Times-Roman f
(AUTHOR) 970 6864 w
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