Pnmnorm User Manual(0) Pnmnorm User Manual(0) (NAME) pnmnorm - Netpbm (SYNOPSIS) pnmnorm [-bpercent=percent | -bvalue=N | -bsingle] [-wpercent=percent | -wvalue=N | -wsingle] [-midvalue=N] [-middle=N] [-maxexpand=percent] [-keephues] [-luminosity | -colorvalue | -saturation] [ppmfile] . . . (DESCRIPTION) Netpbm(1) . pnmnorm PNM ( PBM PGM PPM) . . . PBM . : (linear) (quadratic). . : pnmnorm . . . . (hue) . PPM : o (luminosity) o (color value) o (saturation) (saturation) <<>> . . . pnmhisteq . pnmhisteq . pnmnorm . (OPTIONS) libnetpbm ( -quiet (Common Options) ) pnmnorm : . . -bpercent -wpercent -bvalue -wvalue -bpercent -wpercent -bvalue -wvalue . ppmhist . () bvalue . bvalue 0 wvalue wvalue maxval bvalue . -bvalue -bpercent pnmnorm . -wvalue -wpercent . ( Netpbm 10.26 ( ) -bvalue/-wvalue ). pnmnorm . -bpercent -wpercent . -bvalue=0 -wvalue=maxval . pnmnorm . -bpercent -wpercent -wvalue -bvalue . -bpercent=20 -wvalue=100 . pnmnorm . ( -bvalue=99) . pnmnorm -bpercent -wpercent . -bpercent -wpercent -bvalue=100 -wvalue=100 . pnmnorm . pnmnorm . Netpbm 10.43 ( ) -wpercent / -bpercent pnmnorm . -maxexpand . . -bpercent=2 -wpercent=1 ( ). . -bsingle -bsingle . -wsingle . -bsingle -wsingle Netpbm 10.69 ( ) . -maxexpand -maxexpand . . -maxexpand=50 . pnmnorm . pnmnorm -maxexpand : limiting expansion of 150% to 50% pnmnorm : remapping 25..75 to 0..100 Netpbm 10.26 ( ) -bvalue -bpercent -wvalue -wpercent . -maxexpand Netpbm 10.32 ( ) . -keephues (hue) . () . pnmnorm ( -wpercent -bpercent ). pnmnorm . -midvalue=N -middle=N -midvalue=N pnmnorm N . -middle . -middle 0 1 0 1 . -midvalue -middle ( -midvalue -bvalue ) pnmnorm -midvalue . -midvalue -middle Netpbm 10.57 ( ) . -keephues pnmnorm . -keephues (clipping) . pnmnorm . (grayscale) . -keephues -luminosity -colorvalue -saturation ( RGB ) ( RGB ). Netpbm 9.25 ( ) -keephues . -luminosity -colorvalue -saturation -luminosity -colorvalue -saturation pnmnorm . . -luminosity ( "Y" YUV YCbCr) . RGB . . . Netpbm 10.28 ( ) -luminosity . Netpbm 10.28 ( ) -colorvalue . -colorvalue ( "V" HSV) . (gamma- adjusted) RGB . . Netpbm 10.28 ( ) -colorvalue . -saturation ( "S" HSV) . RGB RGB ( ). <<>> <<>> <<>> . . Netpbm 10.28 ( ) -colorvalue . (SEE ALSO) pnmhisteq(1), pamlevels(1), ppmhist(1), pgmhist(1), pambrighten(1), ppmdim(1), pnmgamma(1), pnm(1) (DOCUMENT SOURCE) 'makeman' Netpbm HTML . : http://netpbm.sourceforge.net/doc/pnmnorm.html netpbm documentation 19 December 2014 Pnmnorm User Manual(0)