qccimgimagecomponentinterpolatebilinear.3

来自「spiht for linux this is used to decod an」· 3 代码 · 共 67 行

.TH QCCIMGIMAGECOMPONENTINTERPOLATEBILINEAR 3 "QCCPACK" ""
.SH NAME
QccIMGImageComponentInterpolateBilinear,
QccIMGImageComponentInterpolateFilter
\- 
interpolation of an image component
.SH SYNOPSIS
.B #include "libQccPack.h"
.sp
.SH DESCRIPTION
.BR QccIMGImageComponentInterpolateBilinear()
performs bilinear interpolation on
.IR image_component1
producing an image component of twice the size
which is returned as
.IR image_component2 .
.IR image_component2
must be allocated such that its number of rows and number of columns
are twice the number of rows and columns, respectively, of
.IR image_component1 ;
this allocation must be done prior to calling
.BR QccIMGImageComponentInterpolateBilinear() .
.LP
.BR QccIMGImageComponentInterpolateFilter()
also performs interpolation of
.IR image_component1
to twice its size, returning the larger image component as
.IR image_component2 .
However, unlike
.BR QccIMGImageComponentInterpolateBilinear() ,
.BR QccIMGImageComponentInterpolateFilter()
uses an explicit interpolation
.IR filter ,
rather than bilinear interpolation.
.BR QccFilterVector (3)
with symmetric extension at the
image-component boundaries is used
successively on the rows and columns of
.IR image_component1
to provide the interpolated pixels.
.SH "RETURN VALUES"
These routines return 0 on success and 1 on error.
.SH "SEE ALSO"
.BR QccFilterVector (3),
.BR QccIMGImageComponent (3),
.BR QccPackIMG (3),
.BR QccPack (3)

.SH AUTHOR
Copyright (C) 1997-2009  James E. Fowler
.\"  The programs herein are free software; you can redistribute them an.or
.\"  modify them under the terms of the GNU General Public License
.\"  as published by the Free Software Foundation; either version 2
.\"  of the License, or (at your option) any later version.
.\"  
.\"  These programs are distributed in the hope that they will be useful,
.\"  but WITHOUT ANY WARRANTY; without even the implied warranty of
.\"  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\"  GNU General Public License for more details.
.\"  
.\"  You should have received a copy of the GNU General Public License
.\"  along with these programs; if not, write to the Free Software
.\"  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.