我希望保持图像的高宽比,因为我调整了它们的大小。我得到了94,000张图片,我需要作为预览图片显示在一个社交网站上。我所面临的挑战是,一些用户上传了完整的照片,结果他们在调整尺寸后显得很紧张。我正在使用代码点火器来实现这一点。文件名位于数据库表中。这是我正在使用的代码
if (file_exists($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles /purchased_profiles/".$images_->_file_name)) {
//echo "The file $filename exists";
$thumb = new Imagick();
$thumb->readImage($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles/purchased_profiles/".$images_->_file_name);
$orientation = $thumb->getImageOrientation();
switch($orientation) {
case imagick::ORIENTATION_BOTTOMRIGHT:
$thumb->rotateimage("#000", 180); // rotate 180 degrees
break;
case imagick::ORIENTATION_RIGHTTOP:
$thumb->rotateimage("#000", 90); // rotate 90 degrees CW
break;
case imagick::ORIENTATION_LEFTBOTTOM:
$thumb->rotateimage("#000", -90); // rotate 90 degrees CCW
break;
}
$thumb->resizeImage(160,160,Imagick::FILTER_LANCZOS,1);
$thumb->writeImage($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles/purchased_profiles/160x160/".$images_->_file_name);
$thumb->clear();
$thumb->destroy();
}发布于 2016-05-15 16:43:50
如果图片是以不同的大小上传的,如果我要将这里找到的解决方案how do i use imagick in php? (resize & crop)与您的代码结合起来,这将是一个真正的挑战,我可能会想出以下内容
if (file_exists($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles/purchased_profiles/".$images_->_file_name)) {
$thumb = new Imagick();
$thumb->readImage($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles/purchased_profiles/".$images_->_file_name);
$orientation = $thumb->getImageOrientation();
switch($orientation) {
case imagick::ORIENTATION_BOTTOMRIGHT:
$thumb->rotateimage("#000", 180); // rotate 180 degrees
break;
case imagick::ORIENTATION_RIGHTTOP:
$thumb->rotateimage("#000", 90); // rotate 90 degrees CW
break;
case imagick::ORIENTATION_LEFTBOTTOM:
$thumb->rotateimage("#000", -90); // rotate 90 degrees CCW
break;
}
//now check the width
$width=$thumb->getImageWidth();
//now check height
$height=$thumb->getImageHeight();
if ($height>$width) {
$new_height=160;
$new_width=(int)($width/$height*160);
$thumb->resizeImage($new_width,$new_height,Imagick::FILTER_LANCZOS,1);
$cropWidth = $thumb->getImageWidth();
$cropHeight = $thumb->getImageHeight();
$cropZoom=1;
if ($cropZoom) {
$newWidth = $cropWidth / 2;
$newHeight = $cropHeight / 2;
$thumb->cropimage(
$new_width,
$new_width,
0,
0
);
}
}
elseif ($width>$height) {
# code...
$new_width=160;
$new_height=(int)($height/$width*160);
$thumb->resizeImage($new_width,$new_height,Imagick::FILTER_LANCZOS,1);
}
else{
$thumb->resizeImage(160,160,Imagick::FILTER_LANCZOS,1);
}
$thumb->writeImage($_SERVER["DOCUMENT_ROOT"]."/uploads/profiles/purchased_profiles/160x160/".$images_->_file_name);
$thumb->clear();
$thumb->destroy(); }你可能需要裁剪,如果图像的高度大于宽度,所以我决定裁剪的尺寸等于宽度从左到角,很可能你不会错过人的脸这种方式。祝好运
https://stackoverflow.com/questions/37240747
复制相似问题