protected function setSizeInfo($dimensionType, $fieldLength, $ifdValue)
	{
		// Set size of field
		$fieldSize = $fieldLength === self::TIF_TAG_TYPE_SHORT ? $this->typeShort : $this->typeLong;

		// Get actual dimensions from IFD
		if ($dimensionType === self::TIF_TAG_IMAGE_HEIGHT)
		{
			$this->size = array_merge($this->size, unpack($fieldSize . 'height', $ifdValue));
		}
		else if ($dimensionType === self::TIF_TAG_IMAGE_WIDTH)
		{
			$this->size = array_merge($this->size, unpack($fieldSize . 'width', $ifdValue));
		}
	}