Patent ID: 7880719

Claim:
A computer implemented method for capturing markup layers on a whiteboard in relation to a projected image, the computer implemented method comprising: displaying a presentation page as the projected image on a whiteboard; identifying a set of markups on the whiteboard associated with the presentation page; isolating the set of markups from the presentation page to create a user input layer, wherein the user input layer is saved as an overlay for the presentation page; wherein the set of markups is a series of black marks forming a black markup layer, and wherein the step of isolating the set of markups further includes: capturing an image of the presentation page and the black markup layer on the whiteboard; isolating the black markup layer from the presentation page based upon a differentiation of a first black level of the black markup layer relative to a second black level of the presentation page to form a user input layer; projecting a calibration image onto the whiteboard, wherein the calibration image comprises a white target area on a black background; filling in the white target with a black marker; and comparing a black level of the black marker in the target area with a black level of a projected black background on the whiteboard to establish a clip level.