grabframe.m

outlook express反垃圾邮件插件

%#    mffmsilhouette : Silhouette extraction algorithm
%#    Copyright (C) 2003  Matt Flax, Regina
%#
%#    This program is free software; you can redistribute it and/or modify
%#    it 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.
%#
%#    This program is distributed in the hope that it 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 this program; if not, write to the Free Software
%#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
%#
%#
%#    Matt Flax <[e-mail]>
function [frameR,frameG,frameB]=grabFrame(viewAsWell)
%# use the real grabFrame here instead

if nargin<1
    viewAsWell=0;
end

if 1
  global whichFrame maxFrame;
  r=24;c=24;
  factor=0.01;
  frameR=round(rand(r,c)*factor);
  frameG=round(rand(r,c)*factor);
  frameB=round(rand(r,c)*factor);
  if whichFrame>maxFrame
    %# set up a fake silhouette
    index=mod(whichFrame,maxFrame)+1;
    frameR(index,:)=frameG(index,:)=frameB(index,:)=128;
    index=mod(whichFrame+2,maxFrame)+1;
    frameR(index,:)=frameG(index,:)=frameB(index,:)=128;
  endif
  whichFrame+=1;
endif

if 0 %# use this with a web cam
    aa=vfm('grab');
    frameR=aa(:,:,1);
    frameG=aa(:,:,2);
    frameB=aa(:,:,3);
end

if 0
    global whichFrame maxFrame;
    eval(['load frame.' num2str(whichFrame) '.mat']);
    if viewAsWell
        image(aa);
    end
    whichFrame=whichFrame+1;
    if whichFrame>maxFrame
        whichFrame=1;
    end
    frameR=aa(:,:,1);
    frameG=aa(:,:,2);
    frameB=aa(:,:,3);
elseif 0
    r=640; c=480;
    frameR=frameGenRGB(r,c);
    frameG=frameGenRGB(r,c);
    frameB=frameGenRGB(r,c);
end