视频捕捉/采集

开发平台：

Visual C++

transform.pl：源码内容

							#!/usr/local/bin/perl
use GD;
# test scaling, translation, transformation
$im = new GD::Image(380,225);
$black = $im->colorAllocate(0, 0, 0);
$white = $im->colorAllocate(255, 255, 255);        
$red = $im->colorAllocate(255, 0, 0);      
$blue = $im->colorAllocate(0,0,255);
$yellow = $im->colorAllocate(255,250,205);
# Create a triangle
$poly = new GD::Polygon;
$poly->toPt(50,50);
$poly->toPt(100,0);
$poly->toPt(-50,50);
$poly->toPt(-50,-50);
$im->filledPolygon($poly,$yellow);
# Stretch it a bit
$poly->scale(1.8,1.0);
$poly->offset(100,0);
$im->filledPolygon($poly,$red);
# Rotate it
$poly->transform(0.55,0.20,0.0,1,-25,50);
$im->filledPolygon($poly,$blue);
print $im->gif;

						