脚本宝典收集整理的这篇文章主要介绍了php – 图像处理宽度和高度设置，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
<!DOCTYPE htML> <html> <head> <tITle>test</title> </head> <body> <?PHP if(isset($_POST['submit'])) { // Give the complete Path of the folder where you want to save the image $folder="uploads/"; move_uploaded_file($_FILES["fileToUpload"]["tmp_name"],"$folder".$_FILES["fileToUpload"]["name"]); $file='uploads/'.$_FILES["fileToUpload"]["name"]; $uploadimage=$folder.$_FILES["fileToUpload"]["name"]; $newname= time(); $ext = pathinfo($_FILES["fileToUpload"]["name"],PATHINFO_EXTENSION); // Set the thumbnail name $thumbnail = $folder.$newname.".".$ext; $imgname=$newname.".".$ext; // Load the mian image if ($ext=="png" || $ext=="PNG") { $source = imagecreatefrompng($uploadimage); } else if ($ext=="gif" || $ext=="GIF") { $source = imagecreateFromgif($uploadimage); } else if ($ext=="bmp" || $ext=="BMP") { $source = imagecreatefrombmp($uploadimage); } else{ $source = imagecreatefromjpeg($uploadimage); } // load the image you want to you want to be watermarked $watermark = imagecreatefrompng('uploads/logo1.png'); // get the width and height of the watermark image $water_width = imagesx($source)/2; $water_height = imagesy($watermark); // get the width and height of the main image image $main_width = imagesx($source); $main_height = imagesy($source); $im_middle_w = $main_width/2; $im_middle_h = $main_height/2; // Set the dimension of the area you want to place your watermark we use 0 // from x-axis and 0 from y-axis $dime_x = $im_middle_w - $water_width/2; $dime_y = $im_middle_h - $water_height/2; // copy both the images imagecopy($source,$watermark,$dime_x,$dime_y,$water_width,$water_height); // Final PRocessing Creating The Image imagejpeg($source,$thumbnail,100); unlink($file); } ?> <img src='uploads/<?PHP echo $imgname;?>'> </body> </html>
但设置$water_width的问题,我想设置为我的源图像的一半.但是当我有一个宽度较小或宽度较宽的源图像与$water_width相比时,就像这样设置它.当源图像宽度更大时查看图像.
// load the image you want to you want to be watermarked
$watermark = imagecreatefrompng('uploads/logo1.png');
// get the width and height of the watermark image
$water_width = imagesx($watermark);
$water_height = imagesy($watermark);
// get the width and height of the main image image
$main_width = imagesx($source);
$main_height = imagesy($source);
// resize watermark to half-width of the image
$new_height = round($water_height * $main_width / $water_width / 2);
$new_width = round($main_width / 2);
$new_watermark = imagecreatetruecolor($new_width,$new_height);
// keep transparent background
imagealphablending( $new_watermark,false );
imagesavealpha( $new_watermark,true );
imagecopyresampled($new_watermark,$new_width,$new_height,$water_height);
// Set the dimension of the area you want to place your watermark we use 0
// from x-axis and 0 from y-axis
$dime_x = round(($main_width - $new_width)/2);
$dime_y = round(($main_height - $new_height)/2);
// copy both the images
imagecopy($source,$new_watermark,$new_height);
// Final processing Creating The Image
imagejpeg($source,100);
imagedestroy($source);
imagedestroy($watermark);
imagedestroy($new_watermark);
以上是脚本宝典为你收集整理的php – 图像处理宽度和高度设置全部内容，希望文章能够帮你解决php – 图像处理宽度和高度设置所遇到的问题。
本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。