automatic image stamp

[ssyfrig]

Hello phpwcms community

does any body have a image stamp solution for phpwcms?






I found this on the web ... it works standalone ..



thanks, Sven

Code: Select all

<?php 
// This script will show image with logo on it 
// Supported are PNGs,GIFs,JPEGs 
// ------------------------------------------------------ 
// call it: http://www.domain.com/showimage.php?img=<name> 
// where <name> is name of image... 
// example: 
// http://www.domain.com/showimage.php?img=001.jpg 
// ------------------------------------------------------ 
// You have to set parameters here: 
// ------------------------------------------------------ 
$image_quality="70"; 
// quality of JPEG conpression [0-100] 
// ------------------------------------------------------ 
$image_path="./images/"; 
// path to images 
// examples: 
// $image_path="./images/"; 
// $image_path="../../images/"; 
// ------------------------------------------------------ 
$logo_path="./logo.png"; 
// path and name of the LOGO image (PNG,GIF,JPEG) 
// examples: 
// $logo_path="./logos/img_logo.png"; 
// $logo_path="../../logos/img_logo.png" 
// ------------------------------------------------------ 
$logo_pos_x="center"; 
// left, right, center 
$logo_pos_y="bottom"; 
// top, middle, bottom 
// ------------------------------------------------------ 
$error_not_found="File doesn't exists"; 
// where image is not found, show this error text 
$error_not_supported="This image type isn't supported"; 
// where image is not supported, show this error text 
$error_bg_color=array(255,255,255); 
// image background color in RGB - (RED,GREEN,BLUE) 
$error_text_color=array(255,0,0); 
// text color in RGB - (RED,GREEN,BLUE) 
// ------------------------------------------------------ 
//  YOU DON'T HAVE TO EDIT CODE BELOW THIS LINE 
// ------------------------------------------------------ 
// SCRIPT written by Ladislav Soukup, [root@soundboss.cz] 
// ------------------------------------------------------ 
function NewImage($width,$height,$text=""){ 
   global $error_bg_color,$error_text_color; 
   if (function_exists("imagecreatetruecolor")){ 
      if (!@$img=imagecreatetruecolor($width,$height)){ 
         $img=imagecreate($width,$height); 
      } 
   } else { 
      $img=imagecreate($width,$height); 
   } 
   $imgbgcolor=ImageColorAllocate($img,$error_bg_color[0],$error_bg_color[1],$error_bg_color[2]); 
   $imgtextcolor=ImageColorAllocate($img,$error_text_color[0],$error_text_color[1],$error_text_color[2]); 
   imagefilledrectangle($img,0,0,$width,$height,$imgbgcolor); 
   imagestring($img,5,10,10,$text,$imgtextcolor); 
   return($img); 
} 
Header("Content-type: image/jpeg"); 
$exp=GMDate("D, d M Y H:i:s",time()+999); 
Header("Expires: $exp GMT"); 
$rep_from=array("./","../"); 
$rep_to=array("","",); 
$_GET["img"]=str_replace($rep_from,$rep_to,$_GET["img"]); 
$file=$image_path . $_GET["img"]; 
if (file_exists($file)){ 
   $info=getimagesize($file); 
   $width=$info[0]; 
   $height=$info[1]; 
   if ($info[2]==1){ 
      $img=@imagecreatefromgif($file); 
   } else if ($info[2]==2){ 
      $img=@imagecreatefromjpeg($file); 
   } else if ($info[2]==3){ 
      $img=@imagecreatefrompng($file); 
   } else { 
      $width=640; 
      $height=480; 
      $img=NewImage($width,$height,$error_not_supported); 
   } 
} else { 
   $width=640; 
   $height=480; 
   $img=NewImage($width,$height,$error_not_found); 
} 
if (file_exists($logo_path)){ 
   $info=getimagesize($logo_path); 
   $logo_width=$info[0]; 
   $logo_height=$info[1]; 
   if ($info[2]==1){ 
      $img_logo=imagecreatefromgif($logo_path); 
   } else if ($info[2]==2){ 
      $img_logo=imagecreatefromjpeg($logo_path); 
   } else if ($info[2]==3){ 
      $img_logo=imagecreatefrompng($logo_path); 
   } else { 
      $logo_width=120; 
      $logo_height=20; 
      $img=NewImage($logo_width,$logo_height,$error_not_supported); 
   } 
   // positioning - X 
   if ($logo_pos_x=="left"){ 
      $dst_x=10; 
   } else if ($logo_pos_x=="center"){ 
      $dst_x=round(($width-$logo_width)/2); 
   } else if ($logo_pos_x=="right"){ 
      $dst_x=$width-10-$logo_width; 
   } else { 
      $dst_x=round(($width-$logo_width)/2); 
   } 
   // positioning - Y 
   if ($logo_pos_y=="top"){ 
      $dst_y=5; 
   } else if ($logo_pos_y=="middle"){ 
      $dst_y=round(($height-($logo_height/2))/2); 
   } else if ($logo_pos_y=="bottom"){ 
      $dst_y=$height-5-$logo_height; 
   } else { 
      $dst_y=round(($height-($logo_height/2))/2); 
   } 
   imagecopy($img,$img_logo,$dst_x,$dst_y,0,0,$logo_width,$logo_height); 
} 
ImageJpeg($img,"",$image_quality); 
?> 

[ssyfrig]

hello

does nobody have any input?

thanks, Sven

[ssyfrig]

i found a solution


1.)
create a file called wrapper.php

Code: Select all

<?php

$watermark = "watermark.png";
$image = $_SERVER["PATH_TRANSLATED"];

if (empty($image)) die();

if (!file_exists($image)) {
   header("404 Not Found");
   echo "File Not Found."; die();
}

$outputType = getFileType($image);

watermark($image, $watermark, $outputType);

/**
   Outputs the image $source with $watermark in the lower right corner.
   @param $source the source image
   @param $watermark the watermark to apply
   @param $outputType the type to output as (png, jpg, gif, etc.)
                      defaults to the image type of $source if left blank
*/
function watermark($source, $watermark, $outputType="") {
   $sourceType = getFileType($source);
   $watermarkType = getFileType($watermark);

   if (empty($outputType)) $outputType = $sourceType;
   if ($outputType == "gif") $outputType = "png"; // Okay to remove after July 2004
   header("Content-type:image/$outputType");

   // We're only looking at the file name, not the directory name
   $fileName = basename($source);

   // Match dots "."
   preg_match_all("/(\.)/", $fileName, $dots);

   // We only care about match #1
   $dots = $dots[1];

   if (count($dots) > 1) {
      // More than one dot, so don't do watermarking

      $fp = fopen($source, "rb");
      $contents = fread($fp, filesize($source));
      fclose($fp);
      echo $contents;
   }

   else {

      // Continue with watermarking

      // Derive function names
      $createSource = "ImageCreateFrom".strtoupper($sourceType);
      $showImage = "Image".strtoupper($outputType);
      $createWatermark = "ImageCreateFrom".strtoupper($watermarkType);

      // Load original and watermark to memory
      $output = $createSource($source);
      $logo = $createWatermark($watermark);
      ImageAlphaBlending($output, true);

      // Find proper coordinates so watermark will be in the lower right corner
      $x = ImageSX($output) - ImageSX($logo);
      $y = ImageSY($output) - ImageSY($logo);

      // Display
      ImageCopy($output, $logo, $x, $y, 0, 0, ImageSX($logo), ImageSY($logo));
      $showImage($output);

      // Purge
      ImageDestroy($output);
      ImageDestroy($logo);
   }
}

function getFileType($string) {
   $type = strtolower(eregi_replace("^(.*)\.","",$string));
   if ($type == "jpg") $type = "jpeg";
   return $type;
}
?>

2.)
create a file or edit your .htaccess file with this content

Code: Select all

AddHandler watermarked .jpg
Action watermarked /watermark/wrapper.php

3.)
create a png file with your watermark and save it as watermark.png

4.)

create a folder under root called watermark
upload watermark.png & wrapper.php to to the watermark folder

5.)
in Release 1.1-RC4 27-08-2004 copy the .htaccess file to the folder /phpwcms_tmp/thumb_preview/


that's it.


(I doesen't write this code, but I lost the download URL)

have fun , Sven

PS: tested with IE 6.0 and Firefox

you can see the result on the pop-up's
http://www.igamt.ch/index.php?id=32,98,0,0,1,0

...

[Pappnase]

hello

nice script! i move this thread to the hacks and enhancements section!

[trip]

Very nice
I think there is a mistake in the code, you have forgotten to close the php code

"?>"

TriP

[ssyfrig]

yep ....

is fixt...

Sven

[trip]

Just one quick question

is the only thing you need to do is the following

1. create wrapper file
2. add code to .htaccess

and then it works??

TriP

[ssyfrig]

yes and create a watermark.png file with your watermark
and place the .htaccess to your image folders

Sven

[trip]

yes and create a watermark.png file with your watermark
and place the .htaccess to your image folders

Sven

Could you amend your first post and add the process step by step, you did not mention that the .htaccess needs to sit in the image directory... this is a vital step... if it is in root it wont work...

question
can this work for gif images?

TriP

[ssyfrig]

can this work for gif images?

yes

Code: Select all

AddHandler watermarked .jpg 
AddHandler watermarked .gif

Action watermarked /watermark/wrapper.php 

Sven

[jscholtysik]

Hi ssyfrig,


but the website visitor still has the possibility to save the picture without the watermark to his harddisk. So why should I watermark my pictures when the visitor can get it without...


Joachim

[ssyfrig]

@jscholtysik

tell us how?

thanks, Sven

[trip]

Hi ssyfrig,


but the website visitor still has the possibility to save the picture without the watermark to his harddisk. So why should I watermark my pictures when the visitor can get it without...


Joachim

mmm
this is a deterant.... it could stop people from doing it... however you do have a point here....

TriP

[jscholtysik]

Hi trip,


when I want to prevent the image stealing, the only effective in my opinion way is to upload images already containing watermarks, do that noboby is able to remove the watermark...


Joachim

[trip]

Hi trip,


when I want to prevent the image stealing, the only effective in my opinion way is to upload images already containing watermarks, do that noboby is able to remove the watermark...


Joachim

This is an issue all over the internet, the problem is the time taken to add watermark to images!

This method although is an overlay, does help keep people from trying.

TriP