Non-intrusive detection method and device for pop-up window button

A non-intrusive detection device for pop-up window button configured for recognizing at least one pop-up window button of a pop-up window on a display device, the non-intrusive detection device comprising:

• an image retrieving module, configured to retrieve a screen image of the display device;
• an image analyzing module, connected to the image retrieving module and stored a preset screen image and an image area threshold value, wherein the image analyzing module is configured to compare the screen image with the preset screen image and generate a differential image area according the screen image and the preset screen image, the image analyzing module determines the differential image area as the pop-up window when the differential image area is greater than the image area threshold value;
• and
• a computing module, connected to the image analyzing module and stored a contour length threshold value and an amount of endpoints, wherein the computing module is configured to select a plurality of contour lengths greater than the contour length threshold value by Canny edge detector, and analyze the contour lengths according to Douglas-Peucker algorithm and the amount of endpoints to generate a contour edge corresponding to the at least one pop-up window button.