%!PS-Adobe-2.0 EPSF-2.0%%Title: /home/cxl/src/uni/htk/doc/intro/img/hsMines/screenshot02.eps%%Creator: XV Version 3.10a  Rev: 12/29/94 (PNG patch 1.2)  -  by John Bradley%%BoundingBox: 166 266 446 526%%Pages: 1%%DocumentFonts:%%EndComments%%EndProlog%%Page: 1 1% remember original state/origstate save def% build a temporary dictionary20 dict begin% define string to hold a scanline's worth of data/pix 840 string def% define space for color conversions/grays 280 string def  % space for gray scale line/npixls 0 def/rgbindx 0 def% lower left corner166 266 translate% size of image (on paper, in 1/72inch coords)280.00800 259.99200 scale% define 'colorimage' if it isn't defined%   ('colortogray' and 'mergeprocs' come from xwd2ps%     via xgrab)/colorimage where   % do we know about 'colorimage'?  { pop }           % yes: pop off the 'dict' returned  {                 % no:  define one    /colortogray {  % define an RGB->I function      /rgbdata exch store    % call input 'rgbdata'      rgbdata length 3 idiv      /npixls exch store      /rgbindx 0 store      0 1 npixls 1 sub {        grays exch        rgbdata rgbindx       get 20 mul    % Red        rgbdata rgbindx 1 add get 32 mul    % Green        rgbdata rgbindx 2 add get 12 mul    % Blue        add add 64 idiv      % I = .5G + .31R + .18B        put        /rgbindx rgbindx 3 add store      } for      grays 0 npixls getinterval    } bind def    % Utility procedure for colorimage operator.    % This procedure takes two procedures off the    % stack and merges them into a single procedure.    /mergeprocs { % def      dup length      3 -1 roll      dup      length      dup      5 1 roll      3 -1 roll      add      array cvx      dup      3 -1 roll      0 exch      putinterval      dup      4 2 roll      putinterval    } bind def    /colorimage { % def      pop pop     % remove 'false 3' operands      {colortogray} mergeprocs      image    } bind def  } ifelse          % end of 'false' case280 260 8			% dimensions of data[280 0 0 -260 0 260]		% mapping matrix{currentfile pix readhexstring pop}false 3 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