1. A method for detecting tampering with an image capturing device, comprising: determining a change has occurred in an intensity of an image; determining a pixel area of a foreground mask as a percentage of a total image area; detecting the percentage overlap between an edge image from a current frame and an edge image from a background; utilizing the intensity, the pixel area of the foreground mask, and the percentage overlap to determine a weighted score; and comparing the weighted score to a threshold and detecting tampering with an image capturing device when the weighted score is greater than a threshold.