resizing image to proper resolution

[contra10]

I concerned about resizing images, currently i resize images by simply stretching them out or making them smaller, but sometimes if i upload a picture that is more horizontal then vertical then the image can become distored or vice versa...is there a way i can upload and resize the image so that the image isn't distorted?

[MadTechie]

i probably messed that up.

 

$newSize = 500;
if($height > $width)
{
$width =($width/$height)*$newSize;
$height = $newSize;
}else{
$height =($height/$width)*$newSize;
$width= $newSize;
}

[contra10]

how should i put it in this code...this is to reze for larger image

 

<?php
// Create MySQL login values and 
// set them to your login information.
$username = "root";
$password = "";
$host = "localhost";
$database = "userimages";

// Make the connect to MySQL or die
// and display an error.
$link = mysql_connect($host, $username, $password);
if (!$link) {
    die('Could not connect: ' . mysql_error());
}

$connect = mysql_select_db($database) or die("Can not select the database: ".mysql_error());


$id = $_GET['id'];

if(!isset($id) || empty($id)){
die("Please select your image!");
}else{

$query = mysql_query('SELECT `image` FROM `tbl_images` WHERE `userid`= "'.$id.'"');
$row = mysql_fetch_assoc($query);
$content = $row['image'];



$desired_width = 300; 
$desired_height = 225; 

$im = imagecreatefromstring($content)or die("Can not select the database: ".mysql_error());; 
$new = imagecreatetruecolor($desired_width, $desired_height)or die("Can not select the database: ".mysql_error());; 

$x = imagesx($im); 
$y = imagesy($im); 

imagecopyresampled($new, $im, 0, 0, 0, 0, $desired_width, $desired_height, $x, $y)or die("Can not select the database: ".mysql_error());; 

imagedestroy($im); 

header('Content-type: ' . $row['type'] .'');
imagejpeg($new, null, 85);
}
?>

[contra10]

sry but kinda confused....how does it work?

[redarrow]

read this please using gd function.

 

http://icfun.blogspot.com/2009/03/php-resizing-image-using-php-gd.html

[contra10]

still experiencing trouble. im trying to get it from the url. is there another way

 

when doing that i get this error

 

Fatal error: Call to undefined function resamplimgimagecopyresampled() in /home/username/public_html/profile/index.php on line 79

 

my image url is created from the code above

 

and i use this in profile image display

 

$large_image = imagecreatefromjpeg( "http://www.domain.com/image/viewlarge.php?id=$id" );
## provided the dimension of the new smaller image
$x = 180;$y = 180;
## create a black blank image with provided dimension
$small_image = imagecreatetruecolor($x,$y);
## Just copy the larger image into the smaller image using 
resamplimgimagecopyresampled($small_image,$large_image,0,0,0,0,$x,$y,imagesx($large_image),imagesy($large_image));
## Its always better to free the memory if you don't need 
thisimagedestroy($large_image);
## Just ignore the file name.# 
imagejpeg($small_image);
## Once again, free the 
memeoryimagedestroy($small_image);

 

line 79 being

 

resamplimgimagecopyresampled($small_image,$large_image,0,0,0,0,$x,$y,imagesx($large_image),imagesy($large_image));

 

[contra10]

ok i got it, but the image can still be distorted... its the same result as b4