Man page or keyword search:   man All Sections 1 - General Commands 2 - System Calls 3 - Subroutines, Functions 4 - Special Files 5 - File Formats 6 - Games and Screensavers 7 - Macros and Conventions 8 - Maintenence Commands 9 - Kernel Interface New Commands Server 4.4BSD AIX Alpinelinux Archlinux Aros BSDOS BSDi Bifrost CentOS Cygwin Darwin Debian DigitalUNIX DragonFly ElementaryOS Fedora FreeBSD Gentoo GhostBSD HP-UX Haiku Hurd IRIX Inferno JazzOS Kali Knoppix LinuxMint MacOSX Mageia Mandriva Manjaro Minix MirBSD NeXTSTEP NetBSD OPENSTEP OSF1 OpenBSD OpenDarwin OpenIndiana OpenMandriva OpenServer OpenSuSE OpenVMS Oracle PC-BSD Peanut Pidora Plan9 QNX Raspbian RedHat Scientific Slackware SmartOS Solaris SuSE SunOS Syllable Tru64 UNIXv7 Ubuntu Ultrix UnixWare Xenix YellowDog aLinux   9747 pages apropos Keyword Search (all sections) Output format html ascii pdf view pdf save postscript

RGB2YCBCR(1)							  RGB2YCBCR(1)

NAME
       rgb2ycbcr - convert non-YCbCr TIFF images to a YCbCr TIFF image

SYNOPSIS
       rgb2ycbcr [ options ] src1.tif src2.tif ... dst.tif

DESCRIPTION
       rgb2ycbcr  converts  RGB	 color,	 greyscale, or bi-level TIFF images to
       YCbCr images by transforming and sampling pixel data. If multiple files
       are  specified  on  the command line each source file is converted to a
       separate directory in the destination file.

       By default, chrominance samples are created by sampling 2 by  2	blocks
       of  luminance  values;  this can be changed with the -h and -v options.
       Output data are compressed with the  PackBits  compression  scheme,  by
       default;	 an  alternate	scheme can be selected with the -c option.  By
       default, output data are compressed in strips with the number  of  rows
       in each strip selected so that the size of a strip is never more than 8
       kilobytes; the -r option can be used to explicitly set  the  number  of
       rows per strip.

OPTIONS
       -c     Specify  a compression scheme to use when writing image data: -c
	      none for no compression, -c packbits for the  PackBits  compres‐
	      sion  algorithm  (the default), -c jpeg for the JPEG compression
	      algorithm, -c zip for the deflate compression algorithm, and  -c
	      lzw for Lempel-Ziv & Welch.

       -h     Set the horizontal sampling dimension to one of: 1, 2 (default),
	      or 4.

       -r     Write data with a specified number of rows per strip; by default
	      the  number  of  rows/strip  is  selected	 so that each strip is
	      approximately 8 kilobytes.

       -v     Set the vertical sampling dimension to one of: 1,	 2  (default),
	      or 4.

SEE ALSO
       tiffinfo(1), tiffcp(1), libtiff(3)

       Libtiff library home page: http://www.remotesensing.org/libtiff

libtiff			       November 2, 2005			  RGB2YCBCR(1)

Vote for polarhome