Codeigniter resizing of image not working

Question

I am trying to resize the uploaded image to height of 163px maintaining aspect ratio and then upload it to a folder. I tried with the following code:

$id=1;     // user id
$this->load->library('image_lib');
$filename=$_FILES['file']['name'];
$config['image_library'] = 'gd2';
$config['upload_path'] = './userdata/'.$id;
$config['height'] = '163px';
$config['maintain_ratio'] = TRUE;
//$config['master_dim'] = 'height';
$config['source_image'] = $filename;
$this->load->library('upload', $config);
$this->image_lib->initialize($config);
$this->image_lib->resize();
if(!$this->upload->do_upload('file')) 
{               
     echo $this->data['error'] = $this->upload->display_errors();
}

However this is uploading the image to the correct folder but the image is not resized. I uploaded an image of size *170*128* and it is uploaded to folder as it is without resizing. What is wrong with my code?

Can anyone help me to find the problem?

Thanks in advance.

Answer 1

Simple...

You have to do one thing Go to Captcha_helper.php and search

instead of

    $x = mt_rand(0, $img_width / ($length / 3));

Do Like this

    $x = mt_rand(0, $img_width / ($length / 1));