Data entry retrieval

A computer program product stored on a non-transitory computer usable medium, which when executed, recovers characters entered into at least one data entry zone of a data entry window, the program product comprising program code for:

• storing a first image of the data entry window during data entry;
• subtracting a reference image from the first image to obtain a delta image, wherein the reference image is an image of the data entry window without data entered;
• identifying at least one non empty zone of the delta image and a location of the at least one data entry zone on the data entry window from a location of the at least one non empty zone on the delta image;
• extracting at least one character by applying optical character recognition to the at least one non empty zone;
• and
• inputting the at least one character into the location of the at least one data entry zone.

A data processing system for recovering characters entered into at least one data entry zone of a data entry window, the data processing system comprising:

• a system for storing a first image of the data entry window during data entry;
• a system for subtracting a reference image from the first image to obtain a delta image, wherein the reference image is an image of the data entry window without data entered;
• a system for identifying at least one non empty zone of the delta image and a location of the at least one data entry zone on the data entry window from a location of the at least one non empty zone on the delta image;
• a system for extracting at least one character by applying optical character recognition to the least one non empty zone;
• and
• a system for inputting the at least one character into the location of the at least one data entry zone.

A data processing system comprising:

• a display for displaying an input window;
• an input device for inputting data into the input window;
• a screen capture module for capturing at least a first image of the input window;
• storage for the at least first image;
• a processor for determining a delta image from differences between the at least first image and a reference image of the input window;
• an optical character recognition module for determining at least one character from the delta image;
• and
• an input device emulation module for inputting the at least one character into the input window.