as brightening the pictures, making the eyes sparkle more, changing the hair, bringing a more reddish color to the lips, and fixing any blemishes by having them blurred. Other features include cutting out the original background and replacing it with a different background. Certain backgrounds may be chosen so when the machine prints out the picture, the final sticker will be shiny with sparkles. Finally, the number and size of the pictures to be printed are chosen, and the pictures print out on a glossy full-color 10 × 15 cm sheet to be cut up and divided among the group of customers. Some photo booths also allow the pictures to be sent to customers' mobile phones. Other photo places have a scanner and laptop at the cashier's desk for customers to scan and copy their original picture before they cut and divide the pictures amongst their group. Types of photo booths Passport photo booths Most of the photo booths are used for passport photos. They are coin-operated automated machines that are designed to print a photo in a specific format that meets the passport photo requirements. Multiple copies can be printed so users can save some for future uses. Traditionally, photo booths contain a seat or bench designed to seat the one or two patrons being photographed. The seat is typically surrounded by a curtain of some sort to allow for some privacy and help avoid outside interference during the photo session. Once the payment is made, the photo booth will take a series of photographs, although most modern booths may only take a single photograph and print out a series of identical pictures. Before each photograph, there will be an indication, such as a light or a buzzer, that will signal the patron to prepare their pose. Most booths will use artificial lighting, which may be flash or continuous lighting. After the last photograph in the series (typically between 3 and 8) has been taken, the photo booth begins developing the film — a process that used to take several minutes in the old "wet chemistry" booths, but is now typically accomplished in about 30 seconds with digital technology. The prints are then delivered to the customer. Typical dimensions of these prints vary. The classic and most familiar arrangement from the old style photo booths is four pictures on a strip about 40 mm wide by 205 mm long;