Smartphones have become ingrained in our daily activities, driving Smartphone cameras to become better with every generation. As more and more images are being taken by smartphones it has become increasingly important to assess the quality of the images taken by different phones. The Cell Phone Image Quality (CPIQ) Group created the IEEE P1858 CPIQ Standard. To subjectively validate the group's metric, psychophysical tests were performed; each tested observers' preferences for a wide range of images. While many smartphone images are only viewed electronically, many images also get transformed into printed images, especially photobooks, as digital printing gets better and cheaper compared to traditional printing processes. The main goals of this research were to evaluate the image quality of smartphone images, both electronically displayed and for several printers, and to compare print quality to displayed quality. The subjective results indicated that the perceived quality of images is well-correlated with the objective results of the IEEE P1858 CPIQ Standard. It was also found that smartphones have a bigger impact on the image quality compared to the digital printers.
Gaurav Sheth, Katherine Carpenter, Susan Farnand, "Image Quality Assessment of Displayed and Printed Smartphone Images" in Proc. IS&T 25th Color and Imaging Conf., 2017, pp 13 - 19, https://doi.org/10.2352/ISSN.2169-2629.2017.25.13