Pngtopam User Manual(0) Pngtopam User Manual(0) (NAME) pngtopam - PNG Netpbm (SYNOPSIS) pngtopam [-verbose] [-alphapam | -alpha | -mix] [-background=color] [-gamma=value] [-text=filename] [-time] [-byrow] [pngfile] . . . (DESCRIPTION) Netpbm(1) . pngtopam PNG ( - Portable Network Graphics) Netpbm . : pngtopam PBM . (grayscale) PGM . PPM . -alphapam PAM . tuple type GRAYSCALE_ALPHA RGB_ALPHA . pamtopng pnmtopng . PAM ( pngtopam -alphapam ) . . . (OPTIONS) libnetpbm ( -quiet : ) pngtopam : -verbose PNG . PNG pngcheck ( Netpbm ) . -alphapam () . PAM tuple type GRAYSCALE_ALPHA ( ) RGB_ALPHA ( ) . -alphapam -alpha -mix . pngtopam . Netpbm 10.44 ( ) . -alpha . PBM PGM . pngtopam () . -alphapam -alpha -mix . pngtopam . -mix . (chunk) bKGD PNG -background . PNG bKGD -background . -alphapam -alpha -mix . pngtopam . -background=color -mix . color pnm_parsecolor() . : o -background=rgb:01/ff/80 o -background=rgbi:1/255/128 -background PNG PNG . -background -mix . Netpbm 10.27 ( ) -background -mix . ( ). -gamma=value pngtopam PNG ( gAMA) . pngtopam Netpbm PNG PNG . ( PNG Netpbm gAMA ). -gamma : pngtopam Netpbm Netpbm . PNG PNG . PNG Netpbm pnmgamma pngtopam . -gamma PNG ( gAMA ) pngtopam . . : ( -verbose ) "-gamma 1.0" . gAMA . -gamma : PNG . pngtopam . () . pngtopam . -text=file tEXt zTXt pnmtopng . . -time tIME (stderr) . -byrow pngtopam . pngtopam PNG PAM PNG : Whole Image png_read_image() PAM . Row By Row png_read_row() . Whole Image PNG PNG . PNG (interlaced) pngtopam . Row By Row Whole Image . Netpbm PNG . Netpbm PNG . Netpbm pngtopam Whole Image . Row By Row -byrow . -byrow Netpbm 10.54 ( ) . -orientraw TIFF (raster) . . Netpbm tifftopnm TIFF . TIFF Netpbm tifftopnm . (SEE ALSO) pamtopng(1), pnmtopng(1), pngtopnm(1), ptot, pnmgamma(1), pnm(1) PNG : http://schaik.com/png . (NOTE) PNG Netpbm . "pngtopam | pnmtoxxx" . ptot PNG TIFF . (LIMITATIONS) PNG PNM . . Netpbm . (HISTORY) pngtopam Netpbm 10.44 pngtopnm . pngtopnm PAM pngtopnm . pngtopnm Netpbm 8.1 ( ) Netpbm. pnmtopng pnmtopng(1) Greg Roelofs . Alexander Lehmann Willem van Schaik PNG . pnmtopng . (AUTHORS) (C) - Alexander Lehmann Willem van Schaik . (DOCUMENT SOURCE) Netpbm 'makeman' HTML . : http://netpbm.sourceforge.net/doc/pngtopam.html netpbm documentation 22 July 2008 Pngtopam User Manual(0)