Dynamic display overlay

A computer usable program product comprising a computer usable storage device including computer usable code for creating a virtual display overlay, the computer usable code comprising:

• computer usable code for detecting, at a first time, a first value of a visual characteristic of a presentation, the presentation being sent to a display device from an application executing in a data processing system associated with the display device;
• computer usable code for detecting, at the first time, an ambient condition, wherein the ambient condition changes a user's perception of the first value of the visual characteristic to a perceived value of the visual characteristic;
• computer usable code for identifying a difference between the perceived value of the visual characteristic and a preference specified by a user;
• computer usable code for generating automatically, using a processor, responsive to the identifying, the virtual display overlay having an adjustment value, wherein the adjustment value when applied to the perceived value of the visual characteristic reduces the difference to less than a tolerance threshold;
• computer usable code for displaying the virtual display overlay on the display device such that the virtual display overlay covers the presentation.

A data processing system for creating a virtual display overlay, the data processing system comprising:

• a storage device including a storage medium, wherein the storage device stores computer usable program code;
• and
• a processor, wherein the processor executes the computer usable program code, and wherein the computer usable program code comprises:
• computer usable code for detecting, at a first time, a first value of a visual characteristic of a presentation, the presentation being sent to a display device from an application executing in a data processing system associated with the display device;
• computer usable code for detecting, at the first time, an ambient condition, wherein the ambient condition changes a user's perception of the first value of the visual characteristic to a perceived value of the visual characteristic;
• computer usable code for identifying a difference between the perceived value of the visual characteristic and a preference specified by a user;
• computer usable code for generating automatically, using a processor, responsive to the identifying, the virtual display overlay having an adjustment value, wherein the adjustment value when applied to the perceived value of the visual characteristic reduces the difference to less than a tolerance threshold;
• computer usable code for displaying the virtual display overlay on the display device such that the virtual display overlay covers the presentation.