In this example, the image file "image.jpg" is opened using the imagecreatefromjpeg() function to create an image object. The imagejpeg() function is used to output the image to the browser with its content type set to "image/jpeg". Finally, the imagedestroy() function is used to free memory used by the image object. The package library used in these examples is the GD library, which is a graphics library for PHP that allows image creation and manipulation.