Belki de değil, çünkü var using the right function ...

$CI->image_lib->resize();

Ne demek yok crop()?

$CI->image_lib->crop();

Ben bu laftan nefret ediyorum, ama RTFM.

Here is a function that can crop and resize simultaneously:

function ImageCR($source, $crop = null, $scale = null, $destination = null)
{
    $source = @ImageCreateFromString(@file_get_contents($source));

    if (is_resource($source) === true)
    {
    	$size = array(ImageSX($source), ImageSY($source));

    	if (isset($crop) === true)
    	{
    		$crop = array_filter(explode('/', $crop), 'is_numeric');

    		if (count($crop) == 2)
    		{
    			$crop = array($size[0] / $size[1], $crop[0] / $crop[1]);

    			if ($crop[0] > $crop[1])
    			{
    				$size[0] = $size[1] * $crop[1];
    			}

    			else if ($crop[0] < $crop[1])
    			{
    				$size[1] = $size[0] / $crop[1];
    			}

    			$crop = array(ImageSX($source) - $size[0], ImageSY($source) - $size[1]);
    		}

    		else
    		{
    			$crop = array(0, 0);
    		}
    	}

    	else
    	{
    		$crop = array(0, 0);
    	}

    	if (isset($scale) === true)
    	{
    		$scale = array_filter(explode('*', $scale), 'is_numeric');

    		if (count($scale) >= 1)
    		{
    			if (empty($scale[0]) === true)
    			{
    				$scale[0] = $scale[1] * $size[0] / $size[1];
    			}

    			else if (empty($scale[1]) === true)
    			{
    				$scale[1] = $scale[0] * $size[1] / $size[0];
    			}
    		}

    		else
    		{
    			$scale = array($size[0], $size[1]);
    		}
    	}

    	else
    	{
    		$scale = array($size[0], $size[1]);
    	}

    	$result = ImageCreateTrueColor($scale[0], $scale[1]);

    	if (is_resource($result) === true)
    	{
    		ImageFill($result, 0, 0, IMG_COLOR_TRANSPARENT);
    		ImageSaveAlpha($result, true);
    		ImageAlphaBlending($result, true);

    		if (ImageCopyResampled($result, $source, 0, 0, $crop[0] / 2, $crop[1] / 2, $scale[0], $scale[1], $size[0], $size[1]) === true)
    		{
    			if (preg_match('~gif$~i', $destination) >= 1)
    			{
    				return ImageGIF($result, $destination);
    			}

    			else if (preg_match('~png$~i', $destination) >= 1)
    			{
    				return ImagePNG($result, $destination, 9);
    			}

    			else if (preg_match('~jpe?g$~i', $destination) >= 1)
    			{
    				return ImageJPEG($result, $destination, 90);
    			}
    		}
    	}
    }

    return false;
}

Use it like this:

// resize to 400x400 px 
ImageCR('path/to/sourceImg.jpg', null, '400*400', 'path/to/outputImg.jpg');

// crop to a 1:1 ratio (square) from the center
ImageCR('path/to/sourceImg.jpg', '1/1', null, 'path/to/outputImg.jpg');

// crop to a 1:1 ratio (square) from the center AND resize to 400x400 px 
ImageCR('path/to/sourceImg.jpg', '1/1', '400*400', 'path/to/outputImg.jpg');

// crop to a 1:1 ratio (square) from the center AND resize to 400 px width AND maintain aspect ratio 
ImageCR('path/to/sourceImg.jpg', '1/1', '400*', 'path/to/outputImg.jpg');

// crop to a 1:1 ratio (square) from the center AND resize to 400 px height AND maintain aspect ratio 
ImageCR('path/to/sourceImg.jpg', '1/1', '*400', 'path/to/outputImg.jpg');

Seçenekleri ile civarı oynamak, herhangi bir şüphe varsa bana bildirin.

Ben cevap var. image_lib kırpma destekleyen ve aynı anda boyutlandırmak değildir. SO i kod bazı değişiklik yapmak gerekir.

/**
     * Image Process Using GD/GD2
     *
     * This function will resize or crop
     *
     * @access	public
     * @param	string
     * @return	bool
     */
    function image_process_gd($action = 'resize', $org_w = 0, $org_h = 0)
    {
    	$v2_override = FALSE;
    	// If the target width/height match the source, AND if the new file name is not equal to the old file name
    	// we'll simply make a copy of the original with the new name... assuming dynamic rendering is off.
    	if ($this->dynamic_output === FALSE)
    	{
    		if ($this->orig_width == $this->width AND $this->orig_height == $this->height)
    		{
    			if ($this->source_image != $this->new_image)
    			{
    				if (@copy($this->full_src_path, $this->full_dst_path))
    				{
    					@chmod($this->full_dst_path, DIR_WRITE_MODE);
    				}
    			}

    			return TRUE;
    		}
    	}

    	// Let's set up our values based on the action
    	if ($action == 'crop')
    	{
    		//  Reassign the source width/height if cropping
    		$this->orig_width  = $this->width;
    		$this->orig_height = $this->height;

    		// GD 2.0 has a cropping bug so we'll test for it
    		if ($this->gd_version() !== FALSE)
    		{
    			$gd_version = str_replace('0', '', $this->gd_version());
    			$v2_override = ($gd_version == 2) ? TRUE : FALSE;
    		}
    	}
    	else if ($action == 'resize')
    	{
    		// If resizing the x/y axis must be zero
    		$this->x_axis = 0;
    		$this->y_axis = 0;
    	} else {
    		$this->orig_width  = $org_w;
    		$this->orig_height = $org_h;
    	}

    	//  Create the image handle
    	if ( ! ($src_img = $this->image_create_gd()))
    	{
    		return FALSE;
    	}

    	//  Create The Image
    	//
    	//  old conditional which users report cause problems with shared GD libs who report themselves as "2.0 or greater"
    	//  it appears that this is no longer the issue that it was in 2004, so we've removed it, retaining it in the comment
    	//  below should that ever prove inaccurate.
    	//
    	//  if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor') AND $v2_override == FALSE)
    	if ($this->image_library == 'gd2' AND function_exists('imagecreatetruecolor'))
    	{
    		$create	= 'imagecreatetruecolor';
    		$copy	= 'imagecopyresampled';
    	}
    	else
    	{
    		$create	= 'imagecreate';
    		$copy	= 'imagecopyresized';
    	}

    	/*echo '<br /> Coordinate' . $this->x_axis . " x " . $this->y_axis;
    	echo '<br /> Destination size' .$this->width . " x " . $this->height;
    	echo '<br /> Originl Size' . $this->orig_width. " x " . $this->orig_height;*/
    	$dst_img = $create($this->width, $this->height);
    	$copy($dst_img, $src_img, 0, 0, $this->x_axis, $this->y_axis, $this->width, $this->height, $this->orig_width, $this->orig_height);

    	//  Show the image
    	if ($this->dynamic_output == TRUE)
    	{
    		$this->image_display_gd($dst_img);
    	}
    	else
    	{
    		// Or save it
    		if ( ! $this->image_save_gd($dst_img))
    		{
    			return FALSE;
    		}
    	}

    	//  Kill the file handles
    	imagedestroy($dst_img);
    	imagedestroy($src_img);

    	// Set the file to 777
    	@chmod($this->full_dst_path, DIR_WRITE_MODE);

    	return TRUE;
    }

çağırmak:

//set image library configuration
    		$config['image_library']	= 'gd2';
    		$config['source_image']		= $src_path;
    		$config['new_image']		= $des_path;
    		$config['maintain_ratio']	= FALSE;
    		$config['width']			= 150;
    		$config['height']			= 150;
    		$config['orig_width']		= $width;
    		$config['orig_height']		= $height;
    		$config['x_axis']			= $x;
    		$config['y_axis']			= $y;
    		$this->image_lib->initialize($config);

    		//process thumb and reset the original with and height
    		$this->image_lib->image_process_gd('thumb', $width, $height);