PHP - Can't Copy Transparent Image. (black Background)

I have the following I use for uploading images, but I am having an issue with transparent background png images, they all get changed from transparent background to a black background. After doing some hunting around I see I neet to use imagealphablending and imagesavealpha to keep the trransparency, but it doesnt seem to be working I still get the black backgrounds, any ideas?

Here is the script

Code: [Select]
<?php
// Process new logo image
if ($_FILES['logo']['tmp_name']&&$_FILES['logo']['tmp_name']!="") {  
// set memory limit for image
ini_set("memory_limit","32M");
// Check file extension
$checkfile=$_FILES['logo']['name'];
$ext=substr($checkfile, -3);
// Redirect if not correct image type
if (!in_array($ext, array('jpg', 'JPG', 'gif', 'GIF', 'png', 'PNG'))) {
header("Location: ../control_index.php?sponsors=error1");
// Close database connection
mysql_close($link);
exit ();
}
// Create logo image (300px wide)
$file=$_FILES['logo']['tmp_name'];
list($width, $height)=getimagesize($file);
// Scale to width
$main_width=300;
$main_height=$height*($main_width/$width);

if ($ext=="jpg"||$ext=="JPG") {
$image=imagecreatefromjpeg($file);
$newname="sponsor".time().".jpg";
}
if ($ext=="gif"||$ext=="GIF") {
$image=imagecreatefromgif($file);
$newname="sponsor".time().".gif";
}
if ($ext=="png"||$ext=="PNG") {
$image=imagecreatefrompng($file);
$newname="sponsor".time().".png";
}
// Create main image file
$main_image=imagecreatetruecolor($main_width, $main_height);
imagecopyresampled($main_image, $image, 0, 0, 0, 0, $main_width, $main_height, $width, $height);
$cp_file="../images/sponsors/".$newname;
$site_file="../../images/sponsors/".$newname;
if ($ext=="jpg"||$ext=="JPG") {
imagejpeg($main_image, $cp_file, 100);
imagejpeg($main_image, $site_file, 100);
}
if ($ext=="gif"||$ext=="GIF") {
imagegif($main_image, $cp_file, 100);
imagegif($main_image, $site_file, 100);
}
if ($ext=="png"||$ext=="PNG") {
// Turn off alpha blending and set alpha flag
imagealphablending($main_image, false);
imagesavealpha($main_image, true);
imagepng($main_image, $cp_file, 9);
imagepng($main_image, $site_file, 9);
}
?>

So I'm new to PHP GD, I cant understand why the PNG image will not go transparent, it's just showing a white background.   Could anyone help me out with this?   Spoiler

This is kind of weird, I've tried to figure out what is wrong for a while now, but I really can't seem to figure it out.
My script does seem to work with the values I think it works with, but that might be where the error is.
I've messed around a lot with it, but I still can't seem to understand what the problem is...
I do realize I can just use the filledrectangle function instead of creating a new image for each background color, but the problem itself really annoys me.
The black line doesn't appear anywhere but between the two first background colors and only if both background colors are visible... o.O
Might be I need to use some other imagecopy function, but this is all so weird!
<?php

// image size
$x=500;
$y=100;

// creating transparent image
$im=imagecreatetruecolor($x,$y);
$tc=imagecolorallocatealpha($im,255,255,255,0);
imagefill($im,0,0,$tc);

// background colors
// the escaped lines is for making a background image transparent, to see where the black line appears
$bgc[]=array(255,0,0,0);
//$bgc[0]=array(255,0,0,127);
$bgc[]=array(0,255,0,0);
//$bgc[1]=array(0,255,0,127);
$bgc[]=array(0,0,255,0);
$bgc[]=array(0,255,255,0);

// adding backgrounds
// background count:
$bgcq=count($bgc);
// backgroundsize x,y:
$bgs=array(ceil($x),($y+1)/$bgcq);
// location:
$bgsl=0;
// last height:
$bgsh=0;
for($i=0;$i<$bgcq;$i++){
// start location for this background:
$bgsl+=$bgsh;
// calculating a round number for the background height
if($bgsl+$bgs[1]<round($bgs[1]+($bgs[1]*$i))){
$bgsh=ceil($bgs[1]);
}else{
$bgsh=floor($bgs[1]);
}
// creating background image:
$bg=imagecreatetruecolor($bgs[0],$bgsh);
// filling background image with set color
$abgc=imagecolorallocatealpha($bg,$bgc[$i][0],$bgc[$i][1],$bgc[$i][2],$bgc[$i][3]);
imagefill($bg,0,0,$abgc);
// pasting background on image (imagecopy gives the same result)
imagecopyresampled($im,$bg,0,$bgsl,0,0,$bgs[0],$bgsh,$bgs[0],$bgsh);
// to see the values (test purpose), must escape header and imagepng functions
//echo $bgsl.'-'.($bgsl+$bgsh).'<br />'.$bgsh.'<br />';
}

// output, remember to escape it to echo variables
header('Content-type: image/png');
imagepng($im,NULL,0);

?>
I've tried to make the script as understandable and easy as possible...

anyone got any ideas about what is wrong here, and how to maybe fix it?

function buildAvatar(array $imgArray = array())
   {
      $img1 = imagecreatefrompng($phpbb_root_path.'images/spacer.png');
      foreach($imgArray as $img)
      {
         $img2 = imagecreatefrompng($phpbb_root_path.'avatars/equip_img/'.$img);
         $this->imagecopymerge_alpha($img1, $img2, 0, 0, 0, 0, 210, 300, 100);
      }
      imagealphablending($img1, false);
      imagesavealpha($img1, true);
      return $img1;
   }

The background of my PNG was transparent, I don't know what I did, but it's now black! I'm thinking it's the image! Not the code, this same code worked before, and I've tried tons of different ways of fixing it. How should I save the image to work correctly?

this is the code
<?php
$image = imagecreatefromjpeg("9t4i_200xX.jpg");
$new_image = imagecreatetruecolor(120,90);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, 120, 90, imagesx($image), imagesy($image));
$image = $new_image;
imagejpeg($image,"images/test.jpg");
?>
result is black jpeg image of size 120,90
I dont understand where could be the problem
SimpleImage.php script doesnt work either

I'm trying to convert a grayscale image to pure black and white in php using the GD library.

The purpose would be to detect the cervical cells within the image.

I'll leave the php code and a matlab one (i wrote this code in matlab and i'm trying to obtain the same result in php). Basically, im having troubles accessing each individual pixel's color and modifying it.

MATLAB:

clear all, clc, close all;


I = imread('celule.jpg');
imshow(I)
title('original');

a=rgb2gray(I);

figure;
imshow(a)
title('grayscale');

s=size(a);


for i=1:s(1)
    for j=1:s(2)

        if a(i,j)>190
            a(i,j)=0;
        else a(i,j)=255;
            end
        end
end

 figure;
 imshow(a)
 title('pure black and white');

PHP: 

<?php
 $im = imagecreatefromjpeg("celule.jpg");

function imagetograyscale($im)
{
    if (imageistruecolor($im)) {
        imagetruecolortopalette($im, false, 256);
    }

    for ($c = 0; $c < imagecolorstotal($im); $c++) {
        $col = imagecolorsforindex($im, $c);
        $gray = round(0.299 * $col['red'] + 0.587 * $col['green'] + 0.114 * $col['blue']);
        imagecolorset($im, $c, $gray, $gray, $gray);
    }
}

imagetograyscale($im);

//imagefilter($im, IMG_FILTER_CONTRAST, -255);  //i'm not looking for this effect 

header('Content-type: image/jpeg');
imagejpeg($im);

$C = imagesx($im); //width
 $L = imagesy($im); //height

 echo "Dimensiuni imagine: latime $C, inaltime $L <br>";

 //scanning through the image
 for($x = 0; $x < $L; $x++) {  //each line
    for($y = 0; $y < $C; $y++) {  //each collumn
        // pixel color at (x, y)
        $color = imagecolorat($im, $y, $x);
        $color = imagecolorsforindex($im, $color); //getting rgb values
        $RED[$x][$y] = $color["red"];  //each rgb component
        $GREEN[$x][$y] = $color["green"];
        $BLUE[$x][$y] = $color["blue"];

    }
 } 

?>

image "celule.jpg": https://i.ibb.co/6Ffj6sc/celule.jpg

After image is drop into container , I want to move copy of the original image to be move when original image dragend within container. I tried but it display copy image each time when original image dragend. can anyone help me?

 <!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Prototype</title>
    <script type="text/javascript" src="http://code.jquery.com/jquery.min.js"></script>
    <script src="http://d3lp1msu2r81bx.cloudfront.net/kjs/js/lib/kinetic-v4.7.2.min.js"></script>
    <script src="http://code.jquery.com/ui/1.9.2/jquery-ui.min.js"></script>
<style>
    body{padding:20px;}
    #container{
      border:solid 1px #ccc;
      margin-top: 10px;
      width:350px;
      height:350px;
    }
    #toolbar{
      width:350px;
      height:35px;
      border:solid 1px blue;
    }
</style>        
<script>
$(function(){
 
    var $house=$("#house");
    $house.hide();
 
    var $stageContainer=$("#container");
    var stageOffset=$stageContainer.offset();
    var offsetX=stageOffset.left;
    var offsetY=stageOffset.top;
 
    var stage = new Kinetic.Stage({
        container: 'container',
        width: 350,
        height: 350
    });
    var layer = new Kinetic.Layer();
    stage.add(layer);
 
    var image1=new Image();
    image1.onload=function(){
        $house.show();
    }
    image1.src="http://vignette1.wikia.nocookie.net/angrybirds/images/b/b6/Small.png/revision/latest?cb=20120501022157";
 
    $house.draggable({
        helper:'clone',
    });
 
    $house.data("url","house.png"); // key-value pair
    $house.data("width","32"); // key-value pair
    $house.data("height","33"); // key-value pair
    $house.data("image",image1); // key-value pair

    $stageContainer.droppable({
        drop:dragDrop,
    });
    function dragDrop(e,ui){
 
        var x=parseInt(ui.offset.left-offsetX);
        var y=parseInt(ui.offset.top-offsetY);
 
        var element=ui.draggable;
        var data=element.data("url");
        var theImage=element.data("image");
 
        var image = new Kinetic.Image({
            name:data,
            x:x,
            y:y,
            image:theImage,
            draggable: true,
        
        dragBoundFunc: function(pos) {
            return {
              x: pos.x,
              y: this.getAbsolutePosition().y
            }
        }        
        
	   });
			image.on("dragend", function(e) {
			   var points = image.getPosition();
			   var image1 = new Kinetic.Image({
					name: data,
					id: "imageantry",
					x: points.x+65,
					y: points.y,
					image: theImage,
					draggable: false
				});
					layer.add(image1);
					layer.draw();
			});
		image.on('dblclick', function() {
			image.remove();
			layer.draw();
		});
        layer.add(image);
        layer.draw();
    }
 
}); // end $(function(){});

</script>       
</head>
<body>
    <div id="toolbar">
        <img id="house" width=32 height=32 src="http://vignette1.wikia.nocookie.net/angrybirds/images/b/b6/Small.png/revision/latest?cb=20120501022157"><br>
    </div>
    <div id="container"></div>
</body>
</html>

Edited by Biruntha, 08 January 2015 - 10:14 AM.

I'm wondering if the GD library is capable of coloring ONLY the non-transparent areas in an image. I had this image white, black, and every other color under the moon, but could only get GD to color the entire canvas (width and height) of the image with an opacity over it. I'm merging many layers on top of each other so I can't afford to color the entire square and lower the opacity and do some weird multiply stuff.     That's the image above. Then I have some lineart, markings, eye color, etc. So I had all my possible colors white areas that I layer on top of eachother. I want to color the entire non-transparent areas with a color (dynamic).. so I can't just color it in Photoshop and then upload it or else I would literally have millions of possibilities for every single color and shade..   Thanks for any help. I was trying to go with ImageMagick if GD isn't capable, but I can't even get that downloaded in my Wamp. I'm using 64 bit Wamp so I have no idea if that does something or whatever. I can get it installed on my computer and run it via command line, but I can't get it to work and render images in my Wamp files... can't ever find a .dll that works.

Ok I am designing a php upload that will take a image file from a form and change the name of the file to the productnumber also recieved from the form. I had it working the otherday now it says Warning: copy() [function.copy]: open_basedir restriction in effect File() is not within the allowed path(s): (/home:/tmp:/usr) addpro.php on line 51.

my files are attached.... note that $pnum is the product number gotten from my form and image is the image being uploaded gotten from the form also.  The thing is it worked the other day but now it don't is it a change to the server ( I dont run the server) or did I mess up my code since then?  I really need a code that will do this two time over once for a small image being put into a folder called small and once for a folder called large both images being uploaded and being changed to $pnum.ext so they will both be displayed when being called out by the product number. but I can work on that after I get this one working.


line 51 is $copied = copy($_FILES['image']['tmp_name'], $newname);

I’m trying to work out how I can use php gd to take an image, in this case it’s a rectangle that has text in the middle and the rest is transparent, so it’s a png with just text in the centre.

 

I have another image which is a texture. Its also a rectangle of the same size. I have managed to merge the two together so the texture on top of the text image but it covers the entire image rather than just the text in the middle.

 

what I need it to do it apply the texture to the text in the image and ignore the surrounding transparent pixels.

 

 

I came across the PHP clone method. Does this clone first level fields and methods or does it also do deep copying e.g. copying references to those fields. For example, a field may be an array. Does it make a copy of the actual array or does it refer to the same array position in memory, so if the original changes, then the copy's changes as well?

This was generated through phpFormGenerator, but I'm getting the following warning message when a file is not uploaded. I didn't set it as a required field.

"Warning: copy() [function.copy]: Filename cannot be empty ..."

If it possible to skip this check since it's not supposed to be required to upload a file? I'm simply trying to make a contact form that emails basic information with the added option of attaching a file/picture.

Code: [Select]
<?php
include("global.inc.php");
$errors=0;
$error="The following errors occured while processing your form input.<ul>";
pt_register('POST','FullName');
pt_register('POST','Email');
pt_register('POST','Phone');
pt_register('POST','QuestionsorComments');
$QuestionsorComments=preg_replace("/(\015\012)|(\015)|(\012)/","&nbsp;<br />", $QuestionsorComments);$AttachPictureforQuote=$HTTP_POST_FILES['AttachPictureforQuote'];
pt_register('POST','Howdidyoufindus');
if($FullName=="" || $Email=="" ){
$errors=1;
$error.="<li>You did not enter one or more of the required fields. Please go back and try again.";
}
if($HTTP_POST_FILES['AttachPictureforQuote']['tmp_name']==""){ }
 else if(!is_uploaded_file($HTTP_POST_FILES['AttachPictureforQuote']['tmp_name'])){
$error.="<li>The file, ".$HTTP_POST_FILES['AttachPictureforQuote']['name'].", was not uploaded!";
$errors=1;
}
if(!eregi("^[a-z0-9]+([_\\.-][a-z0-9]+)*" ."@"."([a-z0-9]+([\.-][a-z0-9]+)*)+"."\\.[a-z]{2,}"."$",$Email)){
$error.="<li>Invalid email address entered";
$errors=1;
}
if($errors==1) echo $error;
else{
$image_part = date("h_i_s")."_".$HTTP_POST_FILES['AttachPictureforQuote']['name'];
$image_list[4] = $image_part;
copy($HTTP_POST_FILES['AttachPictureforQuote']['tmp_name'], "files/".$image_part);
$where_form_is="http".($HTTP_SERVER_VARS["HTTPS"]=="on"?"s":"")."://".$SERVER_NAME.strrev(strstr(strrev($PHP_SELF),"/"));
$message="Full Name: ".$FullName."
Email: ".$Email."
Phone: ".$Phone."
Questions or Comments: ".$QuestionsorComments."
Attach Picture for Quote: ".$where_form_is."files/".$image_list[4]."
How did you find us: ".$Howdidyoufindus."
";
$message = stripslashes($message);
mail("webmaster@gmail.com","Form Submitted at your website",$message,"From: phpFormGenerator");
?>


<!-- This is the content of the Thank you page, be careful while changing it -->

<h2>Thank you!</h2>

<table width=50%>
<tr><td>Full Name: </td><td> <?php echo $FullName; ?> </td></tr>
<tr><td>Email: </td><td> <?php echo $Email; ?> </td></tr>
<tr><td>Phone: </td><td> <?php echo $Phone; ?> </td></tr>
<tr><td>Questions or Comments: </td><td> <?php echo $QuestionsorComments; ?> </td></tr>
<tr><td>Attach Picture for Quote: </td><td> <?php echo $AttachPictureforQuote; ?> </td></tr>
<tr><td>How did you find us: </td><td> <?php echo $Howdidyoufindus; ?> </td></tr>
</table>
<!-- Do not change anything below this line -->

<?php 
}
?>
Thanks for your time and any help you can provide!

Hi there,
on my yardmaps website, if a user uploads an image taken with an iphone, and the exif data sets orientation to 1, the image is automatically rotated when put through the imagecopyresampled function.

If I take the same image, and strip out the exif data with photoshop (save as for web, no meta data), the image uploads correctly.

Is there any way to force imagecopyresampled to not rotate the image?

Thanks
B

Hi the file file upload whenever i upload an image to main directory it saves one image into photos folder and copy another into thumbs folder but whenever i upload image to a different album (not main directory) it doesnt copy the other image to thumbs folder what i'm i doing wrong

this is the line that i chose the folder...

function make_locations ($locs)
{
$html = '<select name="locations" class="input"><option value="0">-- Main Directory --</option>';
foreach ($locs AS $key => $value)
{
$html .= '<option value="' .$value['album_id']. '">' .addslashes($value['album_name']). '</option>';
}
$html .= '</select>';

return $html;
}


this is the whole code

<?php
/**
* create a sub album directory for photos
* to be stored in
*/
function create_album ($album_name, $sub_album = 0)
{
global $db;

$sql = "INSERT INTO " .ALBUMS_TABLE. "
(
album_name,
sub_album
)
VALUES
(
'" .addslashes($album_name). "',
" .intval($sub_album). "
)";

if ($db->query($sql))
{
return TRUE;
}
else
{
return FALSE;
}
}

/**
* get a list of sub albums
*/
function get_albums ($sub_album = 0)
{
global $db;

$sql = "SELECT *
FROM " .ALBUMS_TABLE. "
WHERE sub_album = " .intval($sub_album);

$db->query($sql);

// initialise album storage
$albums = array();
while ($row = $db->fetch())
{
$albums[] = $row;
}

return $albums;
}

/**
* get a list of photos within an album
*/
function get_photos ($album = 0)
{
global $db;

$sql = "SELECT *
FROM " .PHOTOS_TABLE. "
WHERE album_id = " .intval($album). "
ORDER BY photo_id ASC";

$db->query($sql);

// initialise album storage
$photos = array();
while ($row = $db->fetch())
{
$photos[] = $row;
}

return $photos;
}

/**
* get a large version of a particular photo
*/
function get_large ($photo, $album = 0, $next = '')
{
global $db, $template, $account_details;

// shall we get the next / previous photo
switch ($next)
{
case "next" :

$next_sql = "AND photo_id > " .intval($photo). " ORDER BY photo_id ASC";
break;

case "previous" :

$next_sql = "AND photo_id < " .intval($photo). " ORDER BY photo_id DESC";
break;

default :

$next_sql = "AND photo_id = " .intval($photo);
break;
}

$sql = "SELECT *
FROM " .PHOTOS_TABLE. "
WHERE album_id = " .intval($album). "
" .$next_sql. "
LIMIT 1";

$db->query($sql);
if ($db->num_rows() == 0)
{
return '';
}
else
{
$photo_info = $db->fetch();

// note the total directory
$location = 'photos/' .$photo_info['photo_proper'];

// now we need to resize
list($width, $height) = getimagesize($location);
if ($width < 300)
{
$new_width = $width;
$new_height = $height;
}
elseif ($width > $height)
{
$new_width = 300;
$new_height = $height * ($new_width / $width);
}
elseif ($width < $height)
{
$new_width = $width * ($new_height / $height);
$new_height = 300;
}

// work out the next link
$next = '<a href="portfolio.php?p=' .$photo_info['photo_id']. '&a=' .$photo_info['album_id']. '&next=next">Next</a>';
$previous = '<a href="portfolio.php?p=' .$photo_info['photo_id']. '&a=' .$photo_info['album_id']. '&next=previous">Previous</a>';

return '<div id="largephoto"><img src="' .$location. '" height="' .$new_height. '" width="' .$new_width. '" class="large"><br /><div id="prevnext">' .$previous. ' :: ' .$next. '</div></div>';
}
}

/**
* get an array of locations
*/
function get_locations ()
{
global $db;

// initialise array
$locations = array();

// select albums
$sql = "SELECT

album_id,
album_name

FROM " .ALBUMS_TABLE;

$db->query($sql);
while ($row = $db->fetch())
{
$locations[] = $row;

}

return $locations;
}

/**
* make the locations table
*/
function make_locations ($locs)
{
$html = '<select name="locations" class="input"><option value="0">-- Main Directory --</option>';
foreach ($locs AS $key => $value)
{
$html .= '<option value="' .$value['album_id']. '">' .addslashes($value['album_name']). '</option>';
}
$html .= '</select>';

return $html;
}

/**
* delete an album from the database
* does not delete the photos in it
*/
function delete_albums ($album_ids)
{
global $db;

if (sizeof($album_ids) > 0)
{
$sql = "DELETE FROM " .ALBUMS_TABLE. "
WHERE album_id IN (" .implode(',', $album_ids). ")";

if ($db->query($sql))
{
return TRUE;
}
}

return FALSE;
}

/**
* delete a set of photos
*/
function delete_photos ($photo_ids)
{
global $db;

if (sizeof($photo_ids) > 0)
{
// select photo names for deletion
$sql = "SELECT photo_proper
FROM " .PHOTOS_TABLE. "
WHERE photo_id IN (" .implode(',', $photo_ids). ")";

$db->query($sql);

$unlink_ids = array();
while ($row = $db->fetch())
{
$unlink_ids[] = $row['photo_proper'];
}

// now delete the photos
if (sizeof($unlink_ids) > 0)
{
$sql = "DELETE FROM " .PHOTOS_TABLE. "
WHERE photo_id IN (" .implode(',', $photo_ids). ")";

if ($db->query($sql))
{
// remove photo from directory
for ($i = 0; $i < sizeof($unlink_ids); $i++)
{
unlink("photos/" .$unlink_ids[$i]);
unlink("photos/thumbs/" .$unlink_ids[$i]);
}
return TRUE;
}
}
}

return FALSE;
}

/**
* upload a set of files
*/
function upload_files ($save_dir = '', $album = 0)
{
global $db;

// check the save dir is writable
if (!is_writable($save_dir))
{
return FALSE;
}

// specify allowed file types
$allowed_types = array (

'image/jpg',
'image/jpeg',
'image/pjpeg',
'image/gif'

);

// keep a list of uploaded files
$uploaded = array();

// store bytes uploaded
$total_bytes = 0;

// go through the list of files
while (list($key, $value) = each($_FILES['userfile']['name']))
{
// check file has been passed
if (!empty($value))
{
// find extension
$extension = substr($_FILES['userfile']['name'][$key], strpos($_FILES['userfile']['name'][$key],".") + 1);

// time + $key for name
$name = time(). "_" .$key. "." .$extension;

// save url
$add = $save_dir. "/" .$name;

if (move_uploaded_file($_FILES['userfile']['tmp_name'][$key], $add))
{
chmod($add, 0777);

// add photo to database
create_photo($_FILES['userfile']['name'][$key], $name, $album);
}
}
}

return TRUE;
}

/**
* insert photo details into the database
*/
function create_photo ($photo_name, $key_name, $album = 0)
{
global $db;

// get the filesize
if (!$size = filesize("photos/" .$key_name))
{
$size = 0;
}

// insert the photo in the database
$sql = "INSERT INTO " .PHOTOS_TABLE. "
(
photo_name,
photo_date,
photo_proper,
photo_size,
album_id
)
VALUES
(
'" .addslashes($photo_name). "',
" .time(). ",
'" .addslashes($key_name). "',
" .intval($size). ",
" .$album. "
)";

if ($db->query($sql))
{
return TRUE;
}
else
{
return FALSE;
}
}

/**
* get a complete raw copy of the directory
*/
function get_dir_contents ($dir)
{
// declare content array
$contents = array();

// check gallery exists
if (is_dir($dir))
{
if ($handle = opendir($dir))
{
while (FALSE !== ($file = readdir($handle)))
{
if ($file != '.' && $file != '..' && $file != 'thumbs')
{
if (file_exists($dir. '/thumbs/' .$file) || thumbnail($file, $dir. '/' .$file, $dir. '/thumbs'))
{
$contents[] = $dir. '/thumbs/' .$file;
}
else
{
$contents[] = 'no_image.gif';
}
}
}
}
}

return $contents;
}

/**
* create a thumbnail of a photo and store it
* in the thumbs directory
*/
function thumbnail ($filename, $source_file, $destination, $new_h = 75, $new_w = 75)
{
if (!is_file($source_file))
{
return FALSE;
}

// get the image details
list($old_w, $old_h, $type) = getimagesize($source_file);

// create source image
switch($type)
{
case 1:

$source = @imagecreatefromgif($source_file);
break;

case 2:

$source = @imagecreatefromjpeg($source_file);
break;

case 3:

$source = @imagecreatefrompng($source_file);
break;

default :

return FALSE;
}

// work out dimensions
if ($old_w < $old_h)
{
$thumb_w = $new_w;
$thumb_h = $old_h * ($new_h / $old_w);
}
elseif ($old_w > $old_h)
{
$thumb_w = $old_w * ($new_w / $old_h);
$thumb_h = $new_h;
}
elseif ($old_w == $old_h)
{
$thumb_w = $new_w;
$thumb_h = $new_h;
}
$thumb = @imagecreatetruecolor($thumb_w, $thumb_h);

// create image
imagecopyresized($thumb, $source, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_w, $old_h);

// check we have a proper destination
if (!is_dir($destination))
{
mkdir($destination, 0777);
}

// save image
switch ($type)
{
case 1:
case 2:

imagejpeg($thumb, $destination. '/' .$filename);
break;

case 3:

imagepng($thumb, $destination. '/' .$filename);
break;
}

// memory saving
imagedestroy($thumb);
imagedestroy($source);

// thumbnail created successfully
return TRUE;
}

/**
* make the table to show the directories and photos
*/
function make_table ($list, $type, $row = 3)
{
// initialize gallery html array
$gallery_html = array();

// check if we have a list > 0
if ($size = sizeof($list))
{
switch ($type)
{
case "GALLERIES" :

$gallery_html[] = '<div id="galleries">';
break;

case "PHOTOS" :
case "RAW" :

$gallery_html[] = '<div id="photos">';
break;
}

// loop through list
for ($i = 0; $i < sizeof($list); $i++)
{
// shall we open a new list
if ($i % $row == 0)
{
$gallery_html[] = '<ul>';
}

// add to list
switch ($type)
{
case "GALLERIES" :

// create the delete link
$delete_link = '';
if ($_SESSION['logged_in'])
{
$delete_link = '[ <a href="admin.php?mode=deletealbum&a=' .$list[$i]['album_id']. '">Delete</a> ]';
}


$gallery_html[] = '<a href=portfolio.php?albums='.$list[$i]['album_id'].'><img src="folder.gif" class="directory"><br />' .addslashes($list[$i]['album_name']). '</a><br />' .$delete_link. '</li>';
break;

case "PHOTOS" :

// construct photo name
$name = $list[$i]['photo_proper'];

// construct location
$location = "photos/";

// create thumbnail
if (!file_exists($location. "/thumbs/" .$name))
{
thumbnail($name, $location. "/" .$name, $location. "/thumbs/");
}

// construct date
$date = '<div class="date">' .date("d/m G:ia", $list[$i]['photo_date']). '</div>';

// create the delete link
$delete_link = '';
if ($_SESSION['logged_in'])
{
$delete_link = '[ <a href="admin.php?mode=deletephoto&p=' .$list[$i]['photo_id']. '">Delete</a> ]';
}

// image information
list($width, $height) = getimagesize($location . $list[$i]['photo_proper']);

// add to the html
$gallery_html[] = '<li><a href="' .$location . $list[$i]['photo_proper']. '" rel="lightbox[racing]" title="Photos"><img src="' .$location. "/thumbs/" .$name. '" class="picture"><br />View</a><br />' .$delete_link. '</li>';
break;

case "RAW" :

$gallery_html[] = '<li><img src="' .$list[$i]. '" class="picture"></li>';
break;
}

// shall we close the list
if ( ($i + 1) % $row === 0 || ($i + 1) == $size)
{
$gallery_html[] = '</ul>';
}
}

$gallery_html[] = '</div>';
}

return implode('', $gallery_html);
}
?>

hi guys
i need some help
i am trying to create a resized image with a watermark, from an uploaded image..
the image is getting uploaded and resized but the watermark doesnt appear correct.
instead of a transparent watermark, there's a black square in it's place.
this is my code
Code: [Select]
$tempfile = $_FILES['filename']['tmp_name'];
$src = imagecreatefromjpeg($tempfile);
list($origWidth, $origHeight) = getimagesize($tempfile);
// creating png image of watermark
$watermark = imagecreatefrompng('../imgs/watermark.png');
// getting dimensions of watermark image
$watermark_width = imagesx($watermark);
$watermark_height = imagesy($watermark);
// placing the watermark
$dest_x = $origWidth / 2 - $watermark_width / 2;
$dest_y = $origHeight / 2 - $watermark_height / 2;
imagecopyresampled($src, $watermark, $dest_x, $dest_y, 0, 0, $watermark_width, $watermark_height, $origWidth, $origHeight);
imagealphablending($src, true);
imagealphablending($watermark, true);
imagejpeg($src,$galleryPhotoLocation,100); // $galleryPhotoLocation is correct. the image gets uploaded successfully..