php使用imagick扩展生成海报
文章描述：
imagick生成带微信头像的海报
head-img.jpeg是微信头像
1.jpg是海报图片
sdmk.png是头像边框图片
<?php
header( "Content-Type: image/png" );
//输出图片
$posterimg = CompositeImage();
echo $posterimg;
//输出图片
function CompositeImage() {
$Qrcode = new Imagick("images/sdmk.png");
//print_r($Qrcode);exit;
$Qrcode->setImageResolution(0.1,0.3);
//设置图片分辨率
$QrcodeWH = $Qrcode->getImageGeometry();
//获取源图片宽和高
if ($QrcodeWH['width']>200) {
$QrcodeW['width'] = 200;
$QrcodeH['height'] = $QrcodeW['width']/$QrcodeWH['width']*$QrcodeWH['height'];
} else {
$QrcodeW['width'] = $QrcodeWH['width'];
$QrcodeH['height'] = $QrcodeWH['height'];
}
$Qrcode->thumbnailImage( $QrcodeW['width'], $QrcodeWH['height'], true );
//按照选定的比例进行缩放
$wxnickpath = "images/head-img.jpeg";
$weixin = new Imagick($wxnickpath);
//$weixin = new Imagick("erweima.png");
$weixin->setImageResolution(0.1,0.3);
//$weixin->roundCorners(360,360); //圆角处理
$wxWH = $weixin->getImageGeometry();
if ($wxWH['width']>180) {
$wxW['width'] = 180;
$wxH['height'] = $wxW['width']/$wxWH['width']*$wxWH['height'];
} else {
$wxW['width'] = $wxWH['width'];
$wxH['height'] = $wxWH['height'];
}
$weixin->thumbnailImage( $wxW['width'], $wxWH['height'], true );
//等比例缩放
//创建一个Imagick对象，同时获取要处理的背景图 /data/wenda/htdocs/upload
$poster = new Imagick( "images/1.jpg" );
$posterWH = $poster->getImageGeometry();
$posterW['width'] = $posterWH['width'];
$posterH['height'] = $posterWH['height'];
// 按照缩略图大小创建一个有颜色的图片
$canvas = new Imagick();
$canvas->newImage( $posterW['width'], $posterH['height'], 'black', 'jpg' );
//二维码 微信头像 背景 合成
$poster->compositeImage($weixin,Imagick::COMPOSITE_OVER,285,412);
//头像
$poster->compositeImage($Qrcode,Imagick::COMPOSITE_OVER,275,402);
//logo
$canvas->compositeImage( $poster, imagick::COMPOSITE_OVER, 0, 0);
$canvas->setImageCompressionQuality(60);
//压缩质量
//$canvas->writeImage( "upload/".time().".jpg" ); //生成图片
return $canvas;
//返回图片流信息
}
发布时间：2021/07/08
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