help please in this code ?

[fuchsia555]

Hi
i have image script , and images have my own watermark on the bottom , size of this watermark 15 pixel ,,, i just need help in the code below to tell php to ignore reading this watermark while creating thumbnails for the images , i just want the watermark disappear in thumbnails only

[kovik]

I don't think anyone will try to wade through your code in order to help you *fix* it. If they do, kudos to them. Unless you have an actual error, then I'm going to ignore the code.

Basically, the process you want to follow is this:

1. Make the main GD image and save it into a variable (main)
2. Duplicate the GD image and save that into another variable (thumbnail)
3. Add the watermark to the first GD image (main)
4. Resize the second GD image to the desired thumbnail size (thumbnail)
5. Save both images to the disk

[fuchsia555]

Thanks for replay dear kovik
but i don't need to watermark images through script
my images already watermarked with desktop software
all i need that to tell php ignore 15 pixel from height bottom while creating thumbnail , because i don't want the watermark appear in thumbnails images , i think i need something like $crop = 15 pixel
and minus it from height i don't know how to do it exactly

[kovik]

Oh, you want to crop it? Use imagecopyresampled() and utilize the src_h parameter to tell PHP what part of the image to copy.

[fuchsia555]

here is an example for image and watermark
http://img683.imageshack.us/img683/2827/example.gif

but how can we set imagecopyresampled()
in this script to work together

here is code that show how thumbnail work in my script

#create thumb
                    $thumb = gd_fit($image,$settings['thumbxy']);
 
                    #save thmb first
                    imagejpeg($thumb,"$th/$id.jpg",$settings['thumbuality']);
                    imagedestroy($thumb);
                    #then save actual jpeg
                    imagejpeg($image,"$im/$id.jpg",$settings['quality']);
                    imagedestroy($image);
 
                    $iptc = new iptc("$im/$id.jpg");
                    if($cimg[0] == 1) {
                        #it is gif keep in data
                        write_file("$im/$id.jpg",load_file("$th/$id.jpg"));
                        write_file("$im/$id.gif",$cimg[1]);
                        $iptc->set(DPI_GIF,"GIF");
                    }
 
  function gd_fit(&$image, $target) { 
 
        //takes the larger size of the width and height and applies the  
        //formula accordingly...this is so this script will work  
        //dynamically with any size image 
 
        $width = gd_width($image);
        $height = gd_height($image);
 
        if ($width > $height) { 
            $percentage = ($target / $width); 
        } else { 
            $percentage = ($target / $height); 
        } 
 
        //gets the new value and applies the percentage, then rounds the value 
        $width = round($width * $percentage); 
        $height = round($height * $percentage); 
 
        //returns the new sizes in html image tag format...this is so you 
        //can plug this function inside an image tag and just get the 
 
        return gd_resize($image,$width,$height);
            }
      function gd_width(&$image) {
        return imagesx($image);
    }
    function gd_height(&$image) {
        return imagesy($image);
    }    
 
    function gd_imagewidth($fname) {
        list($width, $height) = getimagesize($fname);         
        return $width;
    }
    function gd_imageheight($fname) {
        list($width, $height) = getimagesize($fname);         
        return $height;
    }       
 
 
 
        function gd_resize(&$image,$w,$h) {
        $ret=@imagecreatetruecolor($w, $h); 
        @imagecopyresampled ($ret,$image, 0, 0, 0, 0, $w, $h, imagesx($image), imagesy($image));  
 
        return $ret; 
    }
 
 

[kovik]

1. Use an imagecreatefrom* function (i.e. imagecreatefromjpeg()) to build the GD image resource from a file
2. Use imagesx() and imagesy() to get the width and height of the GD image resource, respectively.
3. Use the width, height, and imagecreatetruecolor() to build a canvas for a new image that is the desired size using the original width and height
4. Use imagecopyresampled() to copy the desired contents of the first GD image resource (as the source) to the second GD image resource (as the destination).
5. Use an image* function (i.e. imagejpeg()) to save the file.

[fuchsia555]

i think we're close to solve it , i will follow your steps by it's number with my codes

step 1-

 function gd_loadimage($fname) { //ignore ext e.g. for xbm and xpm load jpg
        $arr = explode(".",$fname);
        $ext = strtolower($arr[count($arr)-1]);
        $func = 'imagecreatefrom';
        switch($ext) {
            case 'jpg' :
            case 'jpeg':
            case 'jpe' :  $func .= 'jpeg'; break;
            case 'png' :  $func .= 'png'; break;
            case 'gif' :  $func .= 'gif'; break;
            case 'xbm' :  $func .= 'xbm'; break;
            case 'wbmp':  $func .= 'wbmp'; break;
 
            /*case 'gif' :  $func .= 'jpeg'; break;
            case 'xbm' :  $func .= 'jpeg'; break;
            case 'xpm' :  $func .= 'jpeg'; break;
            case 'wbmp':  $func .= 'wbmp'; break;
            case 'bmp' :  $func .= 'jpeg'; break;
            case 'ico' :  $func .= 'png'; break;
            case 'cur' :  $func .= 'jpeg'; break;
            case 'ani' :  $func .= 'jpeg'; break;
            case 'txt' :  $func .= 'jpeg'; break;*/
 
 
 
        }
        if(!function_exists($func))
            return false;
 
        $res = @$func($fname);;
        if(!$res)
            $res = @imagecreatefromjpeg($fname);
        if(!$res) return false;
 
        return $res;
 
    }
    function gd_loadimage_orig($fname) {
        if(!file_exists($fname)) return false;
 
        $arr = explode(".",$fname);
        $ext = strtolower($arr[count($arr)-1]);
 
        if($ext=='jpe' or $ext == 'jpg') $ext = 'jpeg';
 
        $func = "imagecreatefrom$ext";            
 
        if(!function_exists($func)) 
            return false;
 
        //return $func($fname,$ext=='ico'?16:'',$ext=='ico'?32:100);
        return $func($fname);
 
    }    

step 2-

    function gd_width(&$image) {
        return imagesx($image);
    }
    function gd_height(&$image) {
        return imagesy($image);
    }    
 
    function gd_imagewidth($fname) {
        list($width, $height) = getimagesize($fname);         
        return $width;
    }
    function gd_imageheight($fname) {
        list($width, $height) = getimagesize($fname);         
        return $height;
    }  
 

step 3-

creating thumb is using this code

#create thumb
$thumb = gd_fit($image,$settings['thumbxy']);

so it's using gd_fit function , this function here

    function gd_fit(&$image, $target) { 
 
        $width = gd_width($image);
        $height = gd_height($image);
 
        if ($width > $height) { 
            $percentage = ($target / $width); 
        } else { 
            $percentage = ($target / $height); 
        } 
 
        //gets the new value and applies the percentage, then rounds the value 
        $width = round($width * $percentage); 
        $height = round($height * $percentage); 
 
        //returns the new sizes in html image tag format...this is so you 
        //can plug this function inside an image tag 
 
        return gd_resize($image,$width,$height);
 
    } 

step 4- the return from gd_fit >> function gd_resize ,,,, and it's code

 
    function gd_resize(&$image,$w,$h) {
        $ret=@imagecreatetruecolor($w, $h); 
        @imagecopyresampled ($ret,$image, 0, 0, 0, 0, $w, $h, imagesx($image), imagesy($image));  
 
        return $ret; 
    }
 

step 5- imagejpeg and it's code >>

     function write_jpeg(&$image,$fname,$quality=100) {
        if (function_exists("imagejpeg"))
            return @imagejpeg($image,$fname,$quality); 
        return false;
    }

so the step number 4 that must be edit , we're close to it , i don't know exactly how to do it

[kovik]

I told you everything that you need to know, MUCH more than I even should have told you. Write the code, debug it, find out where its going wrong, THEN ask for more help.

[fuchsia555]

Thank you Mr Kovik so much
i'll try to do it
i really love this forum

Greetings and Respect