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