Pnmcolormap User Manual(0) Pnmcolormap User Manual(0) (NAME) pnmcolormap - Netpbm (SYNOPSIS) pnmcolormap [-center|-meancolor|-meanpixel] [-spreadbrightness|-spreadluminosity] [-splitpixelct|-splitcolorct|-splitspread] [-sort] [-square] [-verbose] [-debug] ncolors|all [pnmfile] (DESCRIPTION) Netpbm(1) . pnmcolormap PNM PAM ncolors (colormap) PNM . PAM pnmcolormap RGB GRAYSCALE . . pnmremap ( ). pnmquant pnmcolormap pnmremap . PNM PNM . pnmcolormap -square (padding) . "median cut" (Heckbert) . : <#quant> . (PBM PGM PPM PAM) . PBM . maxval pnmcolormap . pnmcolormap (multi-image) . . maxval ( ). . Netpbm 10.31 ( ) pnmcolormap . pamseq ppmmake pamcat . (PARAMETERS) . pnmcolormap . all ( ) . all ppmhist -map . ppmhist . (OPTIONS) libnetpbm ( -quiet : ) pnmcolormap : . . . -sort . (insertion sort) . . -square pnmcolormap PPM . pnmcolormap PPM . -verbose pnmcolormap . -debug pnmcolormap . -center -meancolor -meanpixel -spreadbrightness -spreadluminosity -splitpixelct -splitcolorct -splitspread . : <#quant> . (QUANTIZATION METHOD) ( ) . pnmcolormap "median cut" Heckbert . "" (boxes) . . pnmcolormap : o . -splitpixelct . o . . -splitcolorct . o (color spread) . -splitspread . . -splitpixelct splitcolorct splitspread Netpbm 10.88 ( ) . pnmcolormap . ( ) <<>> <<>> . <<>> ( ) . pnmcolormap " " : ) ) (luminosity) . -spreadbrightness -spreadluminosity . -spreadbrightness . . Netpbm pnmcolormap . Netpbm 11.03 ( ) qsort pnmcolormap . pnmcolormap : ) - ( <<>>) ) ( ) ) . -center -meancolor -meanpixel . -center . . A B B . . pnmremap B pnmcolormap pnmcolormap B pnmremap . (REFERENCES) "Color Image Quantization for Frame Buffer Display" Paul Heckbert SIGGRAPH '82 . (SEE ALSO) pnmremap(1), pnmquant(1), ppmquantall(1), pamgetcolor(1), pamdepth(1), ppmdither(1), pamseq(1), ppmmake(1), pamcat(1), ppm(1) (HISTORY) Netpbm 10.15 ( ) pnmcolormap . (seekable) . pnmcolormap Netpbm 9.23 ( ) . pnmquant ( ppmquant ) . Netpbm 9.23 : pnmcolormap pnmremap Netpbm 9.24 pnmquant pnmcolormap pnmremap . (AUTHOR) (C) Jef Poskanzer . (DOCUMENT SOURCE) Netpbm 'makeman' HTML . : http://netpbm.sourceforge.net/doc/pnmcolormap.html netpbm documentation 21 February 2023 Pnmcolormap User Manual(0)