how to fix edges of dynamic transparent generated PNG images from text

[neovantage]

Hey all,
I have created transparent PNG images from text dynamically. But it edges are pixel-ate or we can say edges are distorted.
Here is my LINK which shows my generated transparent PNG image. Can someone help me out to sort out my problem i will be very grateful to him as i am stuck bad with this issue and i am not figuring out how to fix this.

Here is my Code which generate transparent PNG images

<img src="generate-headings.php?text=Company Profile&font_color=F67538" alt="Company Profile" border="0" />

Generate-headings.php file code

<?
    //$font_file  = 'fonts/arial.ttf' ;
    //$font_file  = 'fonts/EurostileLTStd-Demi.otf';
    if($_GET['font_file']){$font_file  = "fonts/".$_GET['font_file'].".ttf";}else{$font_file = 'fonts/arial.ttf';}
    if($_GET['font_size']){$font_size  = $_GET['font_size'] ;}else{$font_size = 18 ;}
    if($_GET['font_color']){$font_color  = '#'.$_GET['font_color'];}else{$font_color = '#ffffff';}
    if($_GET['bg_color']){$background_color = '#'.$_GET['bg_color'];}else{$background_color = '#ffffff';}
 
    $transparent_background  = true ;
    $cache_images = true ;
    $cache_folder = 'cache' ;
 
    $mime_type = 'image/png' ;
    $extension = '.png' ;
    $send_buffer_size = 4096 ;
 
    $text = $_GET['text'];
    //$text = "Mohsin";
 
    if(get_magic_quotes_gpc()){
        $text = stripslashes($text) ;
    }
    $text = javascript_to_html($text) ;
 
    // look for cached copy, send if it exists
    $hash = md5(basename($font_file) . $font_size . $font_color . $background_color . $transparent_background . $text) ;
    $cache_filename = $cache_folder . '/' . $hash . $extension ;
    if($cache_images && ($file = @fopen($cache_filename,'rb'))){
        header('Content-type: ' . $mime_type) ;
        while(!feof($file))
            print(($buffer = fread($file,$send_buffer_size))) ;
        fclose($file) ;
        exit ;
    }
 
    // check font availability
    $font_found = is_readable($font_file) ;
    if(!$font_found){
        //fatal_error('Error: The server is missing the specified font.') ;
    }
 
    // create image
    $background_rgb = hex_to_rgb($background_color) ;
    $font_rgb = hex_to_rgb($font_color) ;
    $dip = get_dip($font_file,$font_size) ;
    $box = @imagettfbbox($font_size,0,$font_file,$text);
    if($_GET['width']){
        $width=$_GET['width'];
    }else{
        $width=(abs($box[2]-$box[0])+4);
    }
    $image = @imagecreate($width,abs($box[5]-$dip)) ;
    if(!$image || !$box){
        fatal_error('Error: The server could not create this heading image.') ;
    }
 
    // allocate colors and draw text
    $background_color = @ImageColorAllocate($image,$background_rgb['red'],$background_rgb['green'],$background_rgb['blue']) ;
    $font_color = ImageColorAllocate($image,$font_rgb['red'],$font_rgb['green'],$font_rgb['blue']) ;   
    ImageTTFText($image,$font_size,0,-$box[0],abs($box[5]-$box[3])-$box[1],$font_color,$font_file,$text) ;
 
    // set transparency
    if($transparent_background)
        imagecolortransparent($image,$background_color) ;
 
    header('Content-type: ' . $mime_type) ;
    ImagePNG($image) ;
 
    // save copy of image for cache
    if($cache_images){
        @imagepng($image,$cache_filename) ;
    }
 
    imagedestroy($image) ;
    exit ;
 
    /*$im = imagecreatetruecolor(300, 18);
    $white = imagecolorallocate($im, 255, 255, 255);
    $black = imagecolorallocate($im, 0, 0, 0);
    imagefilledrectangle($im, 0, 0, imagesx($im), imagesy($im), gd_bkg());
    $text = $_GET[hd];
    $font = "fonts/Abduction.ttf";
    imagettftext($im,14,0,0,13,$black,$font,$text);
    imagepng($im);
    imagedestroy($im);
 
    $background_rgb = hex_to_rgb($background_color) ;
    $background_color = @ImageColorAllocate($image,$background_rgb['red'],*/
 
 
    //=============================== FUNCTIONS =================
    function javascript_to_html($text){
        $matches = null ;
        preg_match_all('/%u([0-9A-F]{4})/i',$text,$matches) ;
        if(!empty($matches)) for($i=0;$i<sizeof($matches[0]);$i++)
            $text = str_replace($matches[0][$i],'&#'.hexdec($matches[1][$i]).';',$text) ;
        return $text ;
    }
    function hex_to_rgb($hex){
        // remove '#'
        if(substr($hex,0,1) == '#')
            $hex = substr($hex,1) ;
 
        // expand short form ('fff') color
        if(strlen($hex) == 3){
            $hex = substr($hex,0,1) . substr($hex,0,1) . substr($hex,1,1) . substr($hex,1,1) . substr($hex,2,1) . substr($hex,2,1) ;
        }
 
        if(strlen($hex) != 6)
            fatal_error('Error: Invalid color "'.$hex.'"') ;
 
        // convert
        $rgb['red'] = hexdec(substr($hex,0,2)) ;
        $rgb['green'] = hexdec(substr($hex,2,2)) ;
        $rgb['blue'] = hexdec(substr($hex,4,2)) ;
 
        return $rgb ;
    }
    function get_dip($font,$size){
        $test_chars = 'abcdefghijklmnopqrstuvwxyz' .
                      'ABCDEFGHIJKLMNOPQRSTUVWXYZ' .
                      '1234567890' .
                      '!@#$%^&*()\'"\\/;.,`~<>[]{}-+_-=' ;
        $box = @ImageTTFBBox($size,0,$font,$test_chars) ;
        return $box[3] ;
    }
?>
 

kind regards,
Mohsin Rafique

[dlite922]

Make your background color the same as what the background of the image is, in your link it's black, so set this to black

else{$background_color = '#000;}

Dan

[neovantage]

i dont want to use Background color. My background color is not soild it's gradiant and it vary from page to page. I want to generate transparent PNG