dZero Image Lib - CodeIgniter Library

gistfile1.php

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
/**
 * dZero image library
 * 
 * @package		dZero Image Library
 * @category	Image Manipulation
 * @author		Daniel Nolan ([email protected]) & Brandon Cordell ([email protected])
 * @copyright	Copyright (c) 2009 dZero Web Design & Development.
 * @link 		http://dzerodesign.com
 * @version		1.0
 * 
 */
class Dzero_image_lib {
	
	/**
	 * Dzero_image_lib constructor
	 *
	 * @access			private
	 */
	function Dzero_image_lib()
	{	
		// get instance of CI super global
		$this->CI =& get_instance();
	}
	
	/**
	 * Get the filetype
	 *
	 * @access			public
	 * @param			resource
	 * @return			string
	 */
	function get_filetype($image) 
	{

	}

	function process_image($image)
	{
		// lets get the file name without extension
		$name_arr = explode('.', $image);
		$image_name = $name_arr[0];
		$image_ext = $name_arr[1];

		if(!$this->grayscale($image, $name_arr[0]))
		{
			echo 'couldn\'t gray';
			return FALSE;
		}

		if(!$this->mirror($image, $name_arr[0]))
		{
						echo 'couldn\'t mirror';
			return FALSE;
		}

		if(!$this->combine($image, $name_arr[0]))
		{			echo 'couldn\'t combine';
			return FALSE;
		}

		return TRUE;
	}
	
	/**
	 * Grayscale image
	 *
	 * @access			public
	 * @param			string
	 */
	function grayscale($image, $filename)
	{
		$new = imagecreatefromjpeg($image);
		
		// apply the grayscale filter to the image
		imagefilter($new, IMG_FILTER_GRAYSCALE);
		
		// set $filename
		$filename = $filename."_grayscale.jpg";

		// Create new *filtered* image
		if(!imagejpeg($new, $filename, 100))
			return FALSE;
		
		// Free up resources
		imagedestroy($new);

		return TRUE;
	}
	
	/**
	 * Mirror image
	 *
	 * @access			public
	 * @param			string
	 */
	function mirror($image, $filename)
	{
		$image = imagecreatefromjpeg($image);


		// get dimensions from original image
		$width = imagesx($image);
		$height = imagesy($image);
		
		// create new image resource with same dimensions as original
		$new = imagecreatetruecolor($width, $height);
		
		// flip image while copying
		for($i = 0; $i < $width; $i++) {
			imagecopy($new, $image, ($width - $i - 1), 0, $i, 0, 1, $height);
		}

		// set $filename
		$filename = $filename."_mirror.jpg";
		
		// create jpg from true color image resource
		if(!imagejpeg($new, $filename, 100))
			return FALSE;
		
		// free up memory
		imagedestroy($new);

		return TRUE;
	}

	function combine($image, $filename)
	{
		$image = imagecreatefromjpeg($image);


		imagefilter($image, IMG_FILTER_GRAYSCALE);

		// get dimensions from original image
		$width = imagesx($image);
		$height = imagesy($image);

		// create new image resource with same dimensions as original
		$new = imagecreatetruecolor($width, $height);


		// flip image while copying
		for($i = 0; $i < $width; $i++) {
			imagecopy($new, $image, ($width - $i - 1), 0, $i, 0, 1, $height);
		}

		// set $filename
		$filename = $filename."_mirror_gray.jpg";


		// create jpg from true color image resource
		if(!imagejpeg($new, $filename, 100))
			return FALSE;

		// free up memory
		imagedestroy($new);

		return TRUE;
	}
}
/* End of file dzero_image_lib.php */
/* Location: ./application/libraries/dzero_image_lib.php */