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PHP - Poor Quality On Thumbnail Images
Hi all,
I am creating a thumbnail from an uploaded image (in this case a company logo). The problem is that the thumbnail image is poor quality and not fit to display on the website! I have attached the uploaded image and then then generated thumbnail, so you can see how much it is degrading. I always want the thumb to be the same size, which is 129pxx44px. I have included the thumb generation part of my script below: // This is declared at the start of the script $tdir = "images/agencylogos/thumbs/"; $twidth = "129"; $theight = "44"; // This is the actual part of the script that does the resizing $simg = imagecreatefromjpeg($newname); $currwidth = imagesx($simg); $currheight = imagesy($simg); if ($currheight > $currwidth) { $zoom = $twidth / $currheight; $newheight = $theight; $newwidth = $currwidth * $zoom; } else { $zoom = $twidth / $currwidth; $newwidth = $twidth; $newheight = $currheight * $zoom; } $dimg = imagecreate($newwidth, $newheight); imagetruecolortopalette($simg, false, 256); $palsize = ImageColorsTotal($simg); imagecopyresized($dimg, $simg, 0, 0, 0, 0, $newwidth, $newheight, $currwidth, $currheight); // Copy Resized Image To The New Image (So We Can Save It) imagejpeg($dimg, "$tdir" . $image_name, 100); imagedestroy($simg); imagedestroy($dimg); Can anyone see any ways of improving this script so that it would make the thumb image better quality? Many thanks, Greens85 Similar TutorialsSo. I'm using this code right he <?php $imagepath = "css/images/statspage.jpg"; $image = imagecreatefromjpeg($imagepath); $imgheight = imagesy($image); $color = imagecolorallocate($image, 255, 255, 255); imagestring($image, 5, 70, $imgheight-50, "This is a test", $color); header('Content-Type: image/jpeg'); imagejpeg($image); ?> It works like it should. Now my problem is, is that the image is being displayed at a very low quality! Here's the original image: Here's the image with the code above: RIGHT away you can tell the HUGE difference. I'm not sure what I'm doing wrong. Maybe i need a higher res image? If y'all guys know a different method THAT also achieves the same thing I'm trying to do. Please let me know ASAP! hi all I am finishing off the final touches to my PHP postcard script and want to be able to display thumb file types only I have found a script to resize the images but this creates larger ones so i want to be able to switch between the two. <?php // CHANGE PARAMETERS HERE BEGIN $senderName = " Holidays From Home "; // Eg.: John's Postcards $senderEmail = "holidaysfromhome@voluntary.awardspace.co.uk"; // Eg.: john@postcard.com // Change only if you have problems with urls $postcardURL = "http://".$_SERVER["HTTP_HOST"].$_SERVER["SCRIPT_NAME"]; // CHANGE PARAMETERS HERE END $result = 0; $msg = ""; $msg1 = ""; $pic = ""; function displayPhotos() //edit photos and change image sizes { global $pic; $columns = 5; $act = 0; $act1 = 0; $sel = 0; // Open the actual directory if($handle = opendir("thumbs")) { // Read all file from the actual directory while($file = readdir($handle)) { if(!is_dir($file)) { if(isset($pic[1])) { if($pic[1] == $act1){$sel = "checked";} else{$sel = "unchecked";} } if($act == 0){echo "<tr>";} echo "<td align='center'><img src='thumbs/$file' alt='postcard' BORDER =1 /><br/><input type='radio' name='selimg' value='$file,$act1' $sel/></td>"; //displays the images $act++; $act1++; if($act == $columns){$act = 0;echo "</tr>";} } } echo "</tr>"; } } ?> my thumbnail images all end in (_th.jpg) and my large files all end in (.jpg). I am really stuck any help would be much appreciated Upload images - Thumbnail sizes? Hi all I haven't used php for a while now and I'm really stuck on some code I wrote and now I can't work how to change it. I have this function to upload images and create thumbnails. The thumbnails can be either landscape or portrait and I want them to have the same height. At the moment the portrait thumbnails height is equal to the landscape thumbnail width. The dimensions of the thumbnails are the same but the portrait images are portrait. How can I size the thumbnails so they all have the same height. Thanks in advance for any help or advice on this. Code: [Select] function upload_images(){ $photo_types = array('image/pjpeg'=>'.jpeg','image/jpeg'=>'.jpg','image/gif'=>'.gif','image/.bmp'=>'bmp','image/x-png'=>'.png'); //$number_of_uploads = 5; $image_Dir = "images_1/"; $image_thumb_Dir = $image_Dir . "thumbs/"; $photo_id_arr = array(); $photo_ext_arr = array(); $photo_id_ext_arr = array(); // if(isset($_FILES['images'])){ $image_uploaded = $_FILES['images']; for($i=0; $i<=count($_FILES['images']['name']);$i++){ if(!empty($image_uploaded['name'][$i])){ if(array_key_exists($image_uploaded['type'][$i], $photo_types)){ $file_temp = mysql_prep($image_uploaded['name'][$i]); // $query = "INSERT INTO photos (filename) VALUES ('{$file_temp}')"; $result = mysql_query($query); confirm_query($result); if($result){ $photo_id = mysql_insert_id(); array_push($photo_id_arr, $photo_id); } // $filetype = $image_uploaded['type'][$i]; $ext = $photo_types[$filetype]; array_push($photo_ext_arr, $ext); $dbfile_name = $photo_id . $ext; // $query = "UPDATE photos SET filename = '{$dbfile_name}' WHERE photo_id = '{$photo_id}'"; $result = mysql_query($query); confirm_query($result); // // $stored_image = $image_Dir . $dbfile_name; $stored_thumb = $image_thumb_Dir . $dbfile_name; move_uploaded_file($image_uploaded['tmp_name'][$i], $stored_image ); // $src_image = imagecreatefromjpeg($stored_image); // $src_width = imagesx($src_image); $src_height = imagesy($src_image); $new_width = 900; $new_height = 900; // if($src_width > $src_height){ $img_w = $new_width; $img_h = $src_height*($new_height/$src_width); } if($src_width < $src_height){ $img_w = $src_width*($new_width/$src_height); $img_h = $new_height; } if($src_width == $src_height){ $img_w = $new_width; $img_h = $new_height; } // $mainImg = imagecreatetruecolor($img_w, $img_h); imagecopyresampled($mainImg, $src_image,0,0,0,0,$img_w, $img_h, $src_width, $src_height); imagejpeg($mainImg, $stored_image, 100); imagedestroy($src_image); imagedestroy($mainImg); //*************************** // // // //*************************** $src_image = imagecreatefromjpeg($stored_image); // $src_width = imagesx($src_image); $src_height = imagesy($src_image); $new_width = 85; $new_height = 85; // if($src_width > $src_height){ $thumb_w = $new_width; $thumb_h = $src_height*($new_height/$src_width); } if($src_width < $src_height){ $thumb_w = $src_width*($new_width/$src_height); $thumb_h = $new_height; } if($src_width == $src_height){ $thumb_w = $new_width; $thumb_h = $new_height; } // $thumb = imagecreatetruecolor($thumb_w, $thumb_h); imagecopyresampled($thumb, $src_image,0,0,0,0,$thumb_w, $thumb_h, $src_width, $src_height); imagejpeg($thumb, $stored_thumb, 100); imagedestroy($src_image); imagedestroy($thumb); }else{ //echo "File format not supported."; } } } array_push($photo_id_ext_arr, $photo_id_arr); array_push($photo_id_ext_arr, $photo_ext_arr); return $photo_id_ext_arr; } } Basically, I've developed a basic registration and login code whereby it inserts and retrieves data from MySQL, however my login code is giving me problems in a sense that I don't understand the concept of the "session" feature, my understanding of it, is that it places a cookie on your computer and verifies it on each request called by the page with the start_session() function on it, if so, is this correct? My Header for all pages: <?php session_start(); ?> When the client logs in successfully: $_SESSION["myusername"] = $myusername; $_SESSION["mypassword"] = $mypassword; // Both Local variables ($myusername and $mypassword) are from the matching database and client entered values. When the client navigates to a completely different page: if (isset($_SESSION['myusername'])) { // Do x } else { // Do y } // It is never doing X for me. Thanks! Regards Matthew Hello. I was wondering if there is any way to remove the white pixels from around a transparent png image? When I use imageimagecopymerge to place a transparent PNG on top of another image with a dark background, the top image has a few white pixels around the border. Is there any way to remove these white pixels? I attached an example of the image with the white pixels. Thanks Hi, I am tryng to use the gd functions in php to output an image of a lower quality and save it as another image: Code: [Select] header('Content-Type: image/jpeg'); $im = @imagecreatefromjpeg('SDC10424.JPG'); imagejpeg($im, null, 50);// this line lowers the image quality imagedestroy($im); but the problem is how to save it? I tried file_put_contents, but it didnt work, like fileputcontents("test.jpg", $im); I'm having a mini application developed to create A4 PDF's using PHP A key part of the project needs to be able to insert high quality graphics into the document that when printed out look really sharp Some of the graphics are variable and don't always have to be printed I just wanted to know if there was a general guide on what graphics and quality to use? The graphics I need printed print really well when put into a Word document at 300 resolution - so I can't see why there should be any problems inserting into a PDF - these graphics are PNG ones Unfortunately, if I insert the same PNG format into the PDF via the PHP code, the graphic turns out to be REALLY big Just looking for advice Thanks OM Any one know a tutorial for an easy to use thumbnail script which I can use with pictures stored in mysql database. Hi all, completely new at this and have got myself stuck! I am trying to display a thumbnail image by connecting to my database and retrieving the URL that points to the image. I know that the connection is working but I can't seem to get it to point to the image. Probably something really simple. Here's my code: Code: [Select] <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <title>Image Swap Using CSS</title> <style type="text/css"> body { margin: 0; padding: 0; background-color:#000000; } img { margin: 0; padding: 0; border: none; } .test { margin: 0; padding: 0; width: 99px; height: 130px; } .test a:hover img { visibility:hidden; } </style> </head> <body> <?php // connect to the database mysql_connect("********", "****") or die(mysql_error()); mysql_select_db("eliteescorting") or die(mysql_error()); $start=0; // expand on the searches $data=mysql_query("SELECT * FROM escorts WHERE base = 'manchester' ORDER BY RAND()"); $num_results=@mysql_num_rows($data); for($ii = $start;$ii < $num_results; $ii++){ ?> <div class="test"><a href="#"><img src="<?php echo $data[$ii]['thumb'];?>" /></a></div> <?php } ?> </body> </html> In my mySQL field 'thumb' contains the full URL of the image ie http://www............ This is just for testing, I'll get round to sorting out security issues later. Your help will be greatly appreciated! Regards, Nortski. hi guys, im trying to resize and save a thumbnail version of images uploaded to my site in a sub folder (thumbs). I've currently got: $image=imagecreatefromjpeg($filepath); list($width, $height) = getimagesize($filepath); $new_width = 200; $new_height= 150; $image_p=imagecreatetruecolor($new_width, $new_height); imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height); // Save the image imagejpeg($image_p, '/thumbs'.$filepath); // Free up memory imagedestroy($image_p); but it appears to do nothing, but it also doesn't return any errors? could someone help me out please? thanks! Hi, I have this image gallery slideshow, below the image, it's the thumbnail pics. but the size of the thumbnail pics is random...I want to set the size to be the same for all thumbnail pics, since I'm not the one wrote the code so I'm just guessing that this is the php code for the gallery: Code: [Select] <?php for($i=1;$i<10;$i++) { if(!empty($foto[$i])) { if($i==1) { $foto_first=$foto[$i]; } echo "<img border=0 width=0px height=2px src='conf/i/".$foto[$i]."'>"; $dataku.="'".$foto[$i]."': { thumbnail: 'thumb/".$foto[$i]."'},"; } else { $i--; break; } } $dataku=substr($dataku,0,-1); ?> <link rel="stylesheet" href="css/slideshow.css"> <script src="js/mootools-1.3.1-core.js"></script> <script src="js/mootools-1.3.1.1-more.js"></script> <script src="js/slideshow.js"></script> <script src="js/slideshow.flash.js"></script> <script> window.addEvent('domready', function(){ var data = { <?php echo $dataku;?>}; new Slideshow.Flash('flash', data, { color: ['tomato'],duration: 1500, delay: 10000, height: 400, hu: 'conf/i/', width: 500}); }); </script> <div style="padding-bottom:350px;padding-right:100px"> <div id="flash" class="slideshow"> <img src="conf/i/<?php echo $foto_first; ?>" alt="1" height=100px><br> </div> </div> is this the part that I need to add "size" to it? $dataku.="'".$foto[$i]."': { thumbnail: 'thumb/".$foto[$i]."'},"; I'm totally newb at php, so I have no clue at all Is there any way to generate a small image of the 1st page of a pdf document without using a 3rd party like imagemagic. The site is hosted a register.com so I am thinking I am going to be limited to the basic php functions. I want to resize both width and height of the thumb pic this is the php code <?php $id_member=$_SESSION['rid']; if(!empty($foto1_name)) { $nama_file=$foto1_name; $anton->sekur_upload($nama_file); if($valid) { $abpath = "conf/i/"; @copy($foto1, $abpath."/".$foto1_name); $abang_dom=$abpath."/".$foto1_name; list($width, $height) = getimagesize($abang_dom); if($width>200) { make_thumb("$abpath/$foto1_name","conf/i/thumb/$foto1_name",200); } else { $tujuan="conf/i/thumb/".$foto1_name; rename($abang_dom, $tujuan); } } $foto_old_name=$foto1_name; $foto1_name=$id_member."_".$foto1_name; $foto1_name=strtolower($foto1_name); $foto1_name=str_replace(' ', '', $foto1_name); $asal1="conf/i/".$foto_old_name; $asal2="conf/i/thumb/".$foto_old_name; $tujuan1="conf/i/".$foto1_name; $tujuan2="conf/i/thumb/".$foto1_name; rename($asal1, $tujuan1); rename($asal2, $tujuan2); } I want to set the size to 100 x 100, which part of the code that I need to edit? I would be needing different picture sizes on different pages on my site but saving different sizes of a single pic is space consuming. I've heard that it's possible to automatically adjust the size of the picture and found a script that ought to make that possible. Unfortunately, it did not work for me. Article: PHP Thumbnail Script Using GD http://www.rainbodesign.com/pub/thumbnails/ Here's the code: Code: [Select] <? // Rainbo Design PHP Thumbnail Maker // Copyright (C) 2005-2010 by Richard L. Trethewey - rick@rainbo.net // All Rights Reserved // If you use this script, I'd appreciate a link! // http://www.rainbodesign.com/pub/ // Defaults $thumbsize = 150; // Default thumbnail width. $imagesource = 'images/default_img.jpg'; // Default image file name. // Set to empty string for no image output on failure. $error = ''; if (isset($_GET['width'])) { $thumbsize = $_GET['width']; } if (isset($_GET['src'])) { $imagesource = $_GET['src']; } $filetype = substr($imagesource,strlen($imagesource)-4,4); $filetype = strtolower($filetype); if (file_exists($imagesource)) { if($filetype == ".gif") $image = @imagecreatefromgif($imagesource); if($filetype == ".jpg") $image = @imagecreatefromjpeg($imagesource); if($filetype == ".png") $image = @imagecreatefrompng($imagesource); $imagewidth = imagesx($image); $imageheight = imagesy($image); if ($imagewidth >= $thumbsize) { $thumbwidth = $thumbsize; $factor = $thumbsize / $imagewidth; $thumbheight = floor($imageheight * $factor); } else { $thumbwidth = $imagewidth; $thumbheight = $imageheight; $factor = 1; } // Create a thumbnail-sized GD Image object $thumb = @imagecreatetruecolor($thumbwidth,$thumbheight); // bool imagecopyresized ( resource dst_image, resource src_image, int dst_x, int dst_y, int src_x, int src_y, int dst_w, int dst_h, int src_w, int src_h ) imagecopyresized($thumb, $image, 0, 0, 0, 0, $thumbwidth, $thumbheight, $imagewidth, $imageheight); // Send output to user as a jpeg type, regardless of original type header("Content-type:image/jpeg;"); imagejpeg($thumb); imagedestroy($image); imagedestroy($thumb); } else { $error = "File $imagesource Not Found"; } // endif file_exists if ($error != '') { header('Content-type:text/plain;'); echo($error); exit; } // endif $error ?> And here's a little instruction (which I have followed as well). Quote All it takes is replacing the "src" parameter in the <img> tag with the URL for the PHP script, including the parameters "src" which contains the path to the original image file, and "color" to select the color for the font. The script also supports a "width" parameter to specify the width of your thumbnail image. Using that script to display the above image as a thumbnail by setting the "src" attribute to "makeThumb.php?src=slides/slide1.jpg", we get the resulting image shown on the right. Can anyone please help me with this script or something similar? Thanks in advance. ^_^ Edit: The problem is that the image is not showing. It appears as if it cannot locate the file source. Hi all Let me start by saying I'm a noob - who is trying to sort (order) the displayed thumbnails from the script below. I've read the sort, explode, scandir and array manuals - but every attempt fails. I've been reading for days.. and still nothing. I got the script from the net.. While researching how to make this work, I found someone else using the same script needing help on your forums... (http://www.phpfreaks.com/forums/index.php/topic,299137.0.html) I've changed mine a little to work with the directories, and added Javascript for displaying the clicked thumb, in place. The entire thing works like a charm, and displays the generated thumbs and so on - its just that when it comes out on the page, it's in a random order like 2.jpg, 3.jpg, 1.jpg. (It always seems to display the first photo last.) I'd like it to display 1.jpg, 2.jpg, 3.jpg so they appear in order on the page. This way I can group black and white photos from color photos in the same category, or show photos in the order they happened on a vacation for instance. Thanks in advance for any insight! <?php $columns = 5; $thmb_width = 120; $thmb_height = 80; function resizeImage($originalImage,$toWidth,$toHeight){ list($width, $height) = getimagesize($originalImage); $xscale=$width/$toWidth; $yscale=$height/$toHeight; if ($yscale>$xscale){ $new_width = round($width * (1/$yscale)); $new_height = round($height * (1/$yscale)); } else { $new_width = round($width * (1/$xscale)); $new_height = round($height * (1/$xscale)); } $imageResized = imagecreatetruecolor($new_width, $new_height); $imageTmp = imagecreatefromjpeg ($originalImage); imagecopyresampled($imageResized, $imageTmp, 0, 0, 0, 0, $new_width, $new_height, $width, $height); return $imageResized; } function generateThumbnails(){ global $thmb_width,$thmb_height; if ($handle = opendir("/full/path/to/images/galleryname/")) { while ($file = readdir($handle)) { if (is_file($file)){ if (strpos($file,'_th.jpg')){ $isThumb = true; } else { $isThumb = false; } if (!$isThumb) { $dirName = substr($file,0,strpos($file,basename($file))); if (strlen($dirName) < 1) $dirName = '.'; $fileName = basename($file); $fileMain = substr($fileName,0,strrpos($fileName,'.')); $extName = substr($fileName,strrpos($fileName,'.'), strlen($fileName)-strrpos($fileName,'.')); if (($extName == '.jpg') || ($extName == '.jpeg')){ $thmbFile = $dirName.'/'.$fileMain.'_th.jpg'; if (!file_exists($thmbFile)){ imagejpeg(resizeImage($file,$thmb_width,$thmb_height) ,$thmbFile,80); }}}}}}} function getNormalImage($file){ $base = substr($file,0,strrpos($file,'_th.jpg')); if (file_exists($base.'.jpg')) return $base.'.jpg'; elseif (file_exists($base.'.jpeg')) return $base.'.jpeg'; else return ""; } function displayPhotos(){ global $columns; generateThumbnails(); $act = 0; $img_dir = 'images/galleryname/'; if ($handle = opendir($img_dir)) { while ($file = readdir($handle)) { if (strpos($file,'_th.jpg')){ ++$act; if ($act > $columns) { echo '<li><a onclick="return showPic(this)" href="'.getNormalImage($img_dir.$file).'"><img src="'.$img_dir.$file.'" alt="'.$file.'"/></a></li>'; }}}}} ?> <script type="text/javascript" language="javascript"> function showPic (whichpic) { if (document.getElementById) { document.getElementById('placeholder') .src = whichpic.href; if (whichpic.title) { document.getElementById('desc') .childNodes[0].nodeValue = whichpic.title; } else { document.getElementById('desc') .childNodes[0].nodeValue = whichpic.childNodes[0].nodeValue; } return false; } else { return true; } }</script> <div class="galthumbs"><ul> <?php displayPhotos(); ?> </ul></div> <div class="galmain"><img id="placeholder" src="images/galleryname/1.jpg" alt="" /></div><p id="desc"> </p> I have a quick question about a script I wrote that searches all .jpg images in a directory (and it's sub-directories) and makes thumbnails of them. The problem I am having is that I am getting an internal server error after about 15 seconds. I have included my script, the class it requires, and my php.ini file that resides in the root of my site. I have searched for a couple of hours online and haven't been able to come up with an answer as to why I am getting that error. The thumbnail file... Code: [Select] <?php set_time_limit(0); require_once('classes/Create_Thumbnail.php'); $filter = '.jpg'; $directory = 'media'; // Do not include a trailing slash $it = new RecursiveDirectoryIterator("$directory"); foreach(new RecursiveIteratorIterator($it) as $file) { if (!((strpos(strtolower($file), $filter)) === false) || empty($filter)) { $items[] = preg_replace("#\\\#", "/", $file); } } foreach ($items as $item) { $photo = new Create_Thumbnail($item); $photo->createThumbnail(); } ?> The Create_Thumbnail class... Code: [Select] <?php class Create_Thumbnail { private $_photo; private $_photoBasename; private $_photoWidth; private $_photoHeight; private $_photoType; private $_resizedPhoto; private $_thumbFolder; private $_thumbWidth = 125; private $_thumbHeight = 125; private $_thumbSuffix = '_thumb'; private $_thumbnail; /** * Constructor retrieves photo's basename, extension, width, and height. */ public function __construct($photo) { $this->_photo = $photo; $this->_photoBasename = pathinfo($this->_photo, PATHINFO_FILENAME); $this->_extension = pathinfo($this->_photo, PATHINFO_EXTENSION); $this->_thumbFolder = dirname($photo) . '/'; list($this->_photoWidth, $this->_photoHeight, $this->_photoType) = getimagesize($this->_photo); } /** * Method to resize the original image to a size that is much closer to the desired thumbnail size. */ public function resize() { $photoRatio = $this->calculatePhotoRatio(); if ($photoRatio != 1) { $this->_resizedWidth = round($this->_photoWidth * $photoRatio); $this->_resizedHeight = round($this->_photoHeight * $photoRatio); } else { $this->_resizedWidth = $this->_thumbWidth; $this->_resizedHeight = $this->_thumbHeight; } $resource = $this->createResource($this->_photoType, $this->_photo); $resized = imagecreatetruecolor($this->_resizedWidth, $this->_resizedHeight); imagecopyresampled($resized, $resource, 0, 0, 0, 0, $this->_resizedWidth, $this->_resizedHeight, $this->_photoWidth, $this->_photoHeight); $this->_resizedPhoto = $this->_thumbFolder . $this->_photoBasename . '_resized.' . $this->_extension; $this->createNewImage($this->_photoType, $resized, $this->_resizedPhoto); imagedestroy($resource); imagedestroy($resized); return $this->_resizedPhoto; } /** * Method to create the thumbnail. */ public function createThumbnail() { $source = $this->resize(); list($width_original, $height_original, $type) = getimagesize($source); $base_name = pathinfo($source, PATHINFO_FILENAME); $base_name = str_replace('_resized', '', $base_name); $extension = pathinfo($source, PATHINFO_EXTENSION); $source_x = ($width_original / 2) - ($this->_thumbWidth / 2); $source_y = ($height_original / 2) - ($this->_thumbHeight / 2); $resource = $this->createResource($type, $source); $thumb = imagecreatetruecolor($this->_thumbWidth, $this->_thumbHeight); imagecopyresampled($thumb, $resource, 0, 0, $source_x, $source_y, $this->_thumbWidth, $this->_thumbHeight, $this->_thumbWidth, $this->_thumbHeight); $this->_thumbnail = $this->_thumbFolder . $base_name . $this->_thumbSuffix . '.' . $extension; $this->createNewImage($type, $thumb, $this->_thumbnail); unlink($source); return $this->_thumbnail; } /** * Method to create an image resource. */ public function createResource($type, $source) { switch ($type) { case 1: $resource = imagecreatefromgif($source); break; case 2: $resource = imagecreatefromjpeg($source); break; case 3: $resource = imagecreatefrompng($source); break; } return $resource; } /** * Method to calculate the photo ratio. */ public function calculatePhotoRatio() { if ($this->_photoWidth > $this->_photoHeight) { $maximumHeight = $this->_thumbHeight; $photoRatio = $maximumHeight / $this->_photoHeight; } elseif ($this->_photoWidth < $this->_photoHeight) { $maximumWidth = $this->_thumbWidth; $photoRatio = $maximumWidth / $this->_photoWidth; } else { $photoRatio = 1; } return $photoRatio; } /** * Method to create a new image. */ public function createNewImage($type, $source, $destination) { switch ($type) { case 1: if (function_exists('imagegif')) { imagegif($source, $destination); } else { imagejpeg($source, $destination, 50); } break; case 2: imagejpeg($source, $destination, 100); break; case 3: imagepng($source, $destination); break; } } } The php.ini file... Code: [Select] file_uploads on upload_max_filesize = 150M post_max_size = 150M max_input_time = -1 max_execution_time = 0 memory_limit = 150M register_argc_argv = false Hi all, I have been looking at thumbnail scripts and they are all very advanced for what I want. I just want to take 3 uploadeed jpg images, save a copy in original format and save a copy in images/thumbs/ with a size of 200px x 133px. Could someone just show me who to do this? Thanks The script I have for uploading the actual image is: <?php $destination='aircraft/'.$reg."1.jpg"; $temp_file = $_FILES['image']['tmp_name']; move_uploaded_file($temp_file,$destination); $destination2='aircraft/'.$reg."2.jpg"; $temp_file2 = $_FILES['image2']['tmp_name']; move_uploaded_file($temp_file2,$destination2); $destination3='aircraft/'.$reg."3.jpg"; $temp_file3 = $_FILES['image3']['tmp_name']; move_uploaded_file($temp_file3,$destination3); ?> // Create the target image if ( function_exists('imagecreatetruecolor') ) { $targetImage = imagecreate($width, $height); } else { $targetImage = imagecreate($width, $height); } if ( ! is_resource($targetImage) ) { user_error('Cannot initialize new GD image stream', E_USER_NOTICE); return false; } // Copy the source image to the target image if ( $options['method'] == 2 ) { $result = imagecopy($targetImage, $sourceImage, 0, 0, $X, $Y, $W, $H); //imagejpeg($targetImage, $savePath . ( $filename = uniqid() . time() . '.jpg' ) ); } elseif ( function_exists('imagecopyresampled') ) { $result = imagecopyresampled($targetImage, $sourceImage, 0, 0, $X, $Y, $width, $height, $W, $H); //imagejpeg($targetImage, $savePath . ( $filename = uniqid() . time() . '.jpg' ) ); } else { $result = imagecopyresized($targetImage, $sourceImage, 0, 0, $X, $Y, $width, $height, $W, $H); //imagejpeg($targetImage, $savePath . ( $filename = uniqid() . time() . '.jpg' ) ); } if ( ! $result ) { user_error('Cannot resize image', E_USER_NOTICE); return false; } // Free a memory from the source image imagedestroy($sourceImage); // Save the resulting thumbnail return $targetImage; } creates thumbnail with black backround like this but white is needed. what to add and where ? Hi, I was curious if there is anyway to create website screenshots on the fly via a php script. Thanks, dilbertone - the first dilbert on earth Hi i am using a script to upload an image and resize it twice first to create the large image and then again to create a thumbnail. The large image is being created fine and is uploading ok. I'm using the following code to then make the thumbnail but it does not appear to be working ( well nothing is in the thumbnail image folder i expect it to be anyways) can anyone see anything obvious that i am doing wrong ? Many Thanks /////////////////////////// Create a Thumbnail of the Image //////////////////////////////////// list($width, $height) = getimagesize($upload_image); // this is the large image which has apready been uploaded $ratio = $height/$width; if($ratio >= '1') // portret { $ht_tmb = 150; $br_tmb = 150/$ratio; } else { // landscape $ht_tmb = 150*$ratio; $br_tmb = 150; } // create thumb $source = imagecreatefromjpeg($upload_image); // The large image already uploaded //--- resize uploaded file $resize = imagecreatetruecolor($br_tmb, $ht_tmb); imagecopyresized($resize, $source, 0, 0, 0, 0, $br_tmb, $ht_tmb, $width, $height); imagejpeg($resize, "gallery_images/small/" .$filenamefd); $image = imagecreatefromjpeg("gallery_images/small/" .$filenamefd); imagejpeg($image, "gallery_images/small/" . $filenamefd); // end of making thumb ///////////////////////////////////////////////////////////////////////////////////////////////// |
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