Using a modulation transfer function of a device to create digital content for the device

A computer system operable to use a modulation transfer function of a device to generate modified digital content for the device, the computer system comprising:

• data storage storing a modified modulated transfer function for the device, wherein the modified modulation transfer function includes intentional deviations from a nominal modulation transfer function of the device, and wherein the nominal modulation transfer function is a measure of a contrast from a digital content object to a playback of the digital content object on the device;
• a processor modifying the digital content object using the modified modulated transfer function to optimize playback of the digital content object on the device;
• and
• an interface sending the modified digital content object to the device.

A method of providing digital content, the method comprising:

• determining that payment for digital content object to be played on a device is received;
• determining a modulation transfer function of the device, wherein the modulation transfer function is derived from a measure of a contrast from the digital content object to a playback of the digital content object on the device;
• modifying the digital content object based on the modulated transfer function to optimize playback of the digital content object on the device;
• and
• distributing the modified digital content to the device via the Internet.