%!PS-Adobe-2.0
%%Version: 0.1
%%DocumentFonts: (atend)
%%Pages: (atend)
%%EndComments
%
% Version 3.3.2 prologue for troff files.
%

/#copies 1 store
/aspectratio 1 def
/formsperpage 1 def
/landscape false def
/linewidth .3 def
/magnification 1 def
/margin 0 def
/orientation 0 def
/resolution 720 def
/rotation 1 def
/xoffset 0 def
/yoffset 0 def

/roundpage true def
/useclippath true def
/pagebbox [0 0 612 792] def

/R  /Times-Roman def
/I  /Times-Italic def
/B  /Times-Bold def
/BI /Times-BoldItalic def
/H  /Helvetica def
/HI /Helvetica-Oblique def
/HB /Helvetica-Bold def
/HX /Helvetica-BoldOblique def
/CW /Courier def
/CO /Courier def
/CI /Courier-Oblique def
/CB /Courier-Bold def
/CX /Courier-BoldOblique def
/PA /Palatino-Roman def
/PI /Palatino-Italic def
/PB /Palatino-Bold def
/PX /Palatino-BoldItalic def
/Hr /Helvetica-Narrow def
/Hi /Helvetica-Narrow-Oblique def
/Hb /Helvetica-Narrow-Bold def
/Hx /Helvetica-Narrow-BoldOblique def
/KR /Bookman-Light def
/KI /Bookman-LightItalic def
/KB /Bookman-Demi def
/KX /Bookman-DemiItalic def
/AR /AvantGarde-Book def
/AI /AvantGarde-BookOblique def
/AB /AvantGarde-Demi def
/AX /AvantGarde-DemiOblique def
/NR /NewCenturySchlbk-Roman def
/NI /NewCenturySchlbk-Italic def
/NB /NewCenturySchlbk-Bold def
/NX /NewCenturySchlbk-BoldItalic def
/ZD /ZapfDingbats def
/ZI /ZapfChancery-MediumItalic def
/S  /S def
/S1 /S1 def
/GR /Symbol def

/inch {72 mul} bind def
/min {2 copy gt {exch} if pop} bind def

/setup {
	counttomark 2 idiv {def} repeat pop

	landscape {/orientation 90 orientation add def} if
	/scaling 72 resolution div def
	linewidth setlinewidth
	1 setlinecap

	pagedimensions
	xcenter ycenter translate
	orientation rotation mul rotate
	width 2 div neg height 2 div translate
	xoffset inch yoffset inch neg translate
	margin 2 div dup neg translate
	magnification dup aspectratio mul scale
	scaling scaling scale

	addmetrics
	0 0 moveto
} def

/pagedimensions {
	useclippath userdict /gotpagebbox known not and {
		/pagebbox [clippath pathbbox newpath] def
		roundpage currentdict /roundpagebbox known and {roundpagebbox} if
	} if
	pagebbox aload pop
	4 -1 roll exch 4 1 roll 4 copy
	landscape {4 2 roll} if
	sub /width exch def
	sub /height exch def
	add 2 div /xcenter exch def
	add 2 div /ycenter exch def
	userdict /gotpagebbox true put
} def

/addmetrics {
	/Symbol /S null Sdefs cf
	/Times-Roman /S1 StandardEncoding dup length array copy S1defs cf
} def

/pagesetup {
	/page exch def
	currentdict /pagedict known currentdict page known and {
		page load pagedict exch get cvx exec
	} if
} def

/decodingdefs [
	{counttomark 2 idiv {y moveto show} repeat}
	{neg /y exch def counttomark 2 idiv {y moveto show} repeat}
	{neg moveto {2 index stringwidth pop sub exch div 0 32 4 -1 roll widthshow} repeat}
	{neg moveto {spacewidth sub 0.0 32 4 -1 roll widthshow} repeat}
	{counttomark 2 idiv {y moveto show} repeat}
	{neg setfunnytext}
] def

/setdecoding {/t decodingdefs 3 -1 roll get bind def} bind def

/w {neg moveto show} bind def
/m {neg dup /y exch def moveto} bind def
/done {/lastpage where {pop lastpage} if} def

/f {
	dup /font exch def findfont exch
	dup /ptsize exch def scaling div dup /size exch def scalefont setfont
	linewidth ptsize mul scaling 10 mul div setlinewidth
	/spacewidth ( ) stringwidth pop def
} bind def

/changefont {
	/fontheight exch def
	/fontslant exch def
	currentfont [
		1 0
		fontheight ptsize div fontslant sin mul fontslant cos div
		fontheight ptsize div
		0 0
	] makefont setfont
} bind def

/sf {f} bind def

/cf {
	dup length 2 idiv
	/entries exch def
	/chtab exch def
	/newencoding exch def
	/newfont exch def

	findfont dup length 1 add dict
	/newdict exch def
	{1 index /FID ne {newdict 3 1 roll put}{pop pop} ifelse} forall

	newencoding type /arraytype eq {newdict /Encoding newencoding put} if

	newdict /Metrics entries dict put
	newdict /Metrics get
	begin
		chtab aload pop
		1 1 entries {pop def} for
		newfont newdict definefont pop
	end
} bind def

%
% A few arrays used to adjust reference points and character widths in some
% of the printer resident fonts. If square roots are too high try changing
% the lines describing /radical and /radicalex to,
%
%	/radical	[0 -75 550 0]
%	/radicalex	[-50 -75 500 0]
%
% Move braceleftbt a bit - default PostScript character is off a bit.
%

/Sdefs [
	/bracketlefttp		[201 500]
	/bracketleftbt		[201 500]
	/bracketrighttp		[-81 380]
	/bracketrightbt		[-83 380]
	/braceleftbt		[203 490]
	/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]
] def

/S1defs [
	/underscore		[0 80 500 0]
	/endash			[7 90 650 0]
] def
%
% Tries to round clipping path dimensions, as stored in array pagebbox, so they
% match one of the known sizes in the papersizes array. Lower left coordinates
% are always set to 0.
%

/roundpagebbox {
    7 dict begin
	/papersizes [8.5 inch 11 inch 14 inch 17 inch] def

	/mappapersize {
		/val exch def
		/slop .5 inch def
		/diff slop def
		/j 0 def
		0 1 papersizes length 1 sub {
			/i exch def
			papersizes i get val sub abs
			dup diff le {/diff exch def /j i def} {pop} ifelse
		} for
		diff slop lt {papersizes j get} {val} ifelse
	} def

	pagebbox 0 0 put
	pagebbox 1 0 put
	pagebbox dup 2 get mappapersize 2 exch put
	pagebbox dup 3 get mappapersize 3 exch put
    end
} bind def

%%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 [
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/space
	/exclam
	/quotedbl
	/numbersign
	/dollar
	/percent
	/ampersand
	/quoteright
	/parenleft
	/parenright
	/asterisk
	/plus
	/comma
	/minus
	/period
	/slash
	/zero
	/one
	/two
	/three
	/four
	/five
	/six
	/seven
	/eight
	/nine
	/colon
	/semicolon
	/less
	/equal
	/greater
	/question
	/at
	/A
	/B
	/C
	/D
	/E
	/F
	/G
	/H
	/I
	/J
	/K
	/L
	/M
	/N
	/O
	/P
	/Q
	/R
	/S
	/T
	/U
	/V
	/W
	/X
	/Y
	/Z
	/bracketleft
	/backslash
	/bracketright
	/asciicircum
	/underscore
	/quoteleft
	/a
	/b
	/c
	/d
	/e
	/f
	/g
	/h
	/i
	/j
	/k
	/l
	/m
	/n
	/o
	/p
	/q
	/r
	/s
	/t
	/u
	/v
	/w
	/x
	/y
	/z
	/braceleft
	/bar
	/braceright
	/asciitilde
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/.notdef
	/dotlessi
	/grave
	/acute
	/circumflex
	/tilde
	/macron
	/breve
	/dotaccent
	/dieresis
	/.notdef
	/ring
	/cedilla
	/.notdef
	/hungarumlaut
	/ogonek
	/caron
	/space
	/exclamdown
	/cent
	/sterling
	/currency
	/yen
	/brokenbar		% missing
	/section
	/dieresis
	/copyright
	/ordfeminine
	/guillemotleft
	/logicalnot
	/hyphen
	/registered
	/macron
	/degree			% missing
	/plusminus		% missing
	/twosuperior		% missing
	/threesuperior		% missing
	/acute
	/mu			% missing
	/paragraph
	/periodcentered
	/cedilla
	/onesuperior		% missing
	/ordmasculine
	/guillemotright
	/onequarter		% missing
	/onehalf		% missing
	/threequarters		% missing
	/questiondown
	/Agrave
	/Aacute
	/Acircumflex
	/Atilde
	/Adieresis
	/Aring
	/AE
	/Ccedilla
	/Egrave
	/Eacute
	/Ecircumflex
	/Edieresis
	/Igrave
	/Iacute
	/Icircumflex
	/Idieresis
	/Eth			% missing
	/Ntilde
	/Ograve
	/Oacute
	/Ocircumflex
	/Otilde
	/Odieresis
	/multiply		% missing
	/Oslash
	/Ugrave
	/Uacute
	/Ucircumflex
	/Udieresis
	/Yacute			% missing
	/Thorn			% missing
	/germandbls
	/agrave
	/aacute
	/acircumflex
	/atilde
	/adieresis
	/aring
	/ae
	/ccedilla
	/egrave
	/eacute
	/ecircumflex
	/edieresis
	/igrave
	/iacute
	/icircumflex
	/idieresis
	/eth			% missing
	/ntilde
	/ograve
	/oacute
	/ocircumflex
	/otilde
	/odieresis
	/divide			% missing
	/oslash
	/ugrave
	/uacute
	/ucircumflex
	/udieresis
	/yacute			% missing
	/thorn			% missing
	/ydieresis
] def

/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 {
	userdict begin
		/@RealFindfont systemdict begin /findfont load end def
	end
} if

/findfont {
	dup NewFontDirectory exch known not {
		dup
		%dup systemdict /findfont get exec	% not always in systemdict
		dup userdict /@RealFindfont get exec
		dup /Encoding get StandardEncoding eq {
			dup length dict begin
				{1 index /FID ne {def}{pop pop} ifelse} forall
				/Encoding ISOLatin1Encoding def
				currentdict
			end
			/DummyFontName exch definefont
		} if
		NewFontDirectory 3 1 roll put
	} if
	NewFontDirectory exch get
} bind def

setup
%%EndSetup
%%Page: 1 1
/saveobj save def
mark
1 pagesetup
12 /Times-Bold f
(Ppmdist) 2316 1230 w
(User) 2774 1230 w
(Manual) 3043 1230 w
10 /Times-Bold f
(ppmdist) 720 1920 w
10 /Times-Roman f
(Updated: 22 July 1992) 720 2076 w
(Table Of Contents) 720 2196 w
10 /Times-Bold f
(NAME) 720 2436 w
10 /Times-Roman f
(ppmdist \255 simplistic grayscale assignment for machine generated, color images) 720 2592 w
10 /Times-Bold f
(SYNOPSIS) 720 2832 w
(ppmdist) 720 2988 w
10 /Times-Roman f
([) 1096 2988 w
10 /Times-Bold f
(\255intensity) 1129 2988 w
10 /S f
(\357) 1529 2988 w
10 /Times-Bold f
(\255frequency) 1578 2988 w
10 /Times-Roman f
(] [) 2038 2988 w
10 /Times-Italic f
(ppmfile) 2129 2988 w
10 /Times-Roman f
(]) 2429 2988 w
10 /Times-Bold f
(DESCRIPTION) 720 3228 w
10 /Times-Roman f
(This program is part of Netpbm.) 720 3420 w
10 /Times-Bold f
(ppmdist) 720 3576 w
10 /Times-Roman f
(reads) 1098 3576 w
(a) 1335 3576 w
(PPM) 1407 3576 w
(image) 1636 3576 w
(as) 1908 3576 w
(input) 2019 3576 w
(and) 2253 3576 w
(performs) 2425 3576 w
(a) 2813 3576 w
(simplistic) 2885 3576 w
(grayscale) 3303 3576 w
(assignment) 3707 3576 w
(intended) 4185 3576 w
(for) 4557 3576 w
(use) 4701 3576 w
(with) 4862 3576 w
(grayscale or bitmap printers.) 720 3696 w
(Often) 720 3852 w
(conversion) 975 3852 w
(from) 1441 3852 w
(ppm) 1663 3852 w
(to) 1869 3852 w
(pgm) 1976 3852 w
(will) 2183 3852 w
(yield) 2368 3852 w
(an) 2597 3852 w
(image) 2720 3852 w
(with) 2993 3852 w
(contrast) 3200 3852 w
(too) 3545 3852 w
(low) 3702 3852 w
(for) 3881 3852 w
(good) 4026 3852 w
(printer) 4255 3852 w
(output.) 4550 3852 w
(The) 4885 3852 w
(program maximizes contrast between the gray levels output.) 720 3972 w
(A) 720 4128 w
(ppm) 822 4128 w
(input) 1030 4128 w
(of) 1266 4128 w
(n) 1379 4128 w
(colors) 1459 4128 w
(is) 1733 4128 w
(read,) 1831 4128 w
(and) 2058 4128 w
(a) 2233 4128 w
(pgm) 2308 4128 w
(of) 2517 4128 w
(n) 2631 4128 w
(gray) 2712 4128 w
(levels) 2920 4128 w
(is) 3184 4128 w
(written.) 3282 4128 w
(The) 3646 4128 w
(gray) 3832 4128 w
(levels) 4040 4128 w
(take) 4304 4128 w
(on) 4501 4128 w
(the) 4632 4128 w
(values) 4785 4128 w
(0..n\2551, while maxval takes on n\2551.) 720 4248 w
(The) 720 4404 w
(mapping) 908 4404 w
(from) 1291 4404 w
(color) 1518 4404 w
(to) 1756 4404 w
(stepped) 1868 4404 w
(grayscale) 2207 4404 w
(can) 2617 4404 w
(be) 2789 4404 w
(performed) 2917 4404 w
(in) 3366 4404 w
(order) 3478 4404 w
(of) 3722 4404 w
(input) 3839 4404 w
(pixel) 4079 4404 w
(intensity,) 4313 4404 w
(or) 4717 4404 w
(input) 4834 4404 w
(pixel frequency \(number of repetitions\).) 720 4524 w
(This program is helpful only for images with a very small number of colors.) 720 4680 w
10 /Times-Bold f
(OPTIONS) 720 4920 w
(\255frequency) 970 5112 w
10 /Times-Roman f
(Sort) 1430 5112 w
(input) 1628 5112 w
(colors) 1865 5112 w
(by) 2140 5112 w
(the) 2271 5112 w
(number) 2424 5112 w
(of) 2760 5112 w
(times) 2874 5112 w
(a) 3122 5112 w
(color) 3197 5112 w
(appears) 3433 5112 w
(in) 3768 5112 w
(the) 3877 5112 w
(input,) 4031 5112 w
(before) 4294 5112 w
(mapping) 4580 5112 w
(to) 4962 5112 w
(evenly distributed graylevels of output.) 1220 5232 w
10 /Times-Bold f
(\255intensity) 970 5388 w
10 /Times-Roman f
(Sort) 1370 5388 w
(input) 1563 5388 w
(colors) 1795 5388 w
(by) 2065 5388 w
(their) 2191 5388 w
(grayscale) 2400 5388 w
(intensity,) 2802 5388 w
(before) 3198 5388 w
(mapping) 3478 5388 w
(to) 3855 5388 w
(evenly) 3960 5388 w
(distributed) 4253 5388 w
(graylev\255) 4708 5388 w
(els of output.) 1220 5508 w
(This is the default.) 1795 5508 w
10 /Times-Bold f
(SEE ALSO) 720 5748 w
10 /Times-Roman f
(ppmtopgm, ppmhist, ppm) 720 5904 w
10 /Times-Bold f
(AUTHOR) 720 6144 w
10 /Times-Roman f
(Copyright \(C\) 1993 by Dan Stromberg.) 720 6300 w
10 /S1 f
(________________________________________________________________________) 720 6420 w
10 /Times-Bold f
(Table Of Contents) 720 6660 w
10 /LucidaSansUnicode22 f
(\031) 720 6852 w
10 /Times-Roman f
(NAME) 970 6852 w
10 /LucidaSansUnicode22 f
(\031) 720 7008 w
10 /Times-Roman f
(SYNOPSIS) 970 7008 w
10 /LucidaSansUnicode22 f
(\031) 720 7164 w
10 /Times-Roman f
(DESCRIPTION) 970 7164 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
10 /LucidaSansUnicode22 f
(\031) 720 840 w
10 /Times-Roman f
(OPTIONS) 970 840 w
10 /LucidaSansUnicode22 f
(\031) 720 996 w
10 /Times-Roman f
(SEE ALSO) 970 996 w
10 /LucidaSansUnicode22 f
(\031) 720 1152 w
10 /Times-Roman f
(AUTHOR) 970 1152 w
cleartomark
showpage
saveobj restore
%%EndPage: 2 2
%%Trailer
done
%%DocumentFonts: Times-Roman LucidaSansUnicode22 Times-Italic Times-Bold S1 S
%%Pages: 2