i want to enlarge the images with no reducing clarity,,, and how to minimise the size(kb) of an image... also with quality..

pls help ..
Nari

You can't enlarge the same image by retaining the clarity.
You have to store a different large image for enlarge image.
You can save different KBs of same image and use whenever you want.

function upload_image($name, $tname, $size, $path, $wth, $hth)
parameters are : as follows
$name - name of the uploaded image file
$tname - tem_name of the uploaded image file
$size - bite size of the imagefile
$path - where do you want to save the image
$wth - to width you want to resize
$hth - to height you want to resize

You may not need the 'getBaseName($image_name)' function, but it was in my function set.
Try to implement the code. Good luck with this.

<?php
function resizeimage($tname, $ext, $to_wth, $to_hth)
{
	list($width,$height) = getimagesize($tname);
	$wratio = $to_wth/$width;
	$hratio = $to_hth/$height;
	$ratio=($hratio < $wratio) ? $hratio : $wratio;
	$new_width=round($width*$ratio);
	$new_height=round($height*$ratio);
	$imageResized = imagecreatetruecolor($to_wth, $to_hth);
	$bg=imagecolorallocate ( $imageResized, 255, 255, 255 );
	imagefill ( $imageResized, 0, 0, $bg );
	switch($ext) {
            case 'jpg':
                $imageTmp = imagecreatefromjpeg($tname);
                break;
			case 'jpeg':
                $imageTmp = imagecreatefromjpeg($tname);
                break;
            case 'png':
                $imageTmp = imagecreatefrompng($tname);
                break;
            case 'gif':
                $imageTmp = imagecreatefromgif($tname);
                break;
            default:
                echo("Error Invalid Image Type");
                die;
                break;
            }
	$x_mid = $new_width/2;
    $y_mid = $new_height/2;
	//imagecopyresized($imageResized, $imageTmp, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
	imagecopyresampled($imageResized, $imageTmp, (($to_wth-$new_width)/2), (($to_hth-$new_height)/2), 0, 0, $new_width, $new_height, $width, $height);
    return $imageResized;
}
function upload_image($name, $tname, $size, $path, $wth, $hth)
{
	$oext=getExtention($name);
	$ext=strtolower($oext);
	$base_name=getBaseName($name);
	if($ext=="jpg" || $ext=="jpeg" || $ext=="png" || $ext=="gif")
	{
		if($size< 1024*1024*10)
		{
			$tname = resizeimage($tname, $ext, $wth, $hth);
			if(!file_exists($path."".$name))
			{
				imagejpeg($tname,$path."".$name);
				//move_uploaded_file($tname,$path."".$name);
				return 1;
			}
			return 0;
		}
		else
		{
			echo "Image size excedded.<br />File size should be less than 10Mb<br />";
			return 0;
		}
	}
	else
	{
		echo "Invalid file extention '.$oext'<br />";
		return 0;
	}
	return 0;
}
function getExtention($image_name){
	return substr($image_name,strrpos($image_name,'.')+1);
}
function getBaseName($image_name){
	return substr($image_name,0,strrpos($image_name,'.'));
}
?>