Provided is a method for performing analysis on an image. An image is provided to users, wherein contents of the image are hidden from the users. Information regarding the contents of the image is collected from the users wherein a question is posed to the users to determine contents of the image. Alternate inputs are received from the users to reveal the contents of the image, wherein each input from the users partially reveals the contents of the image. A response to the question from the users is received until it is determined that an input from one of the users would reveal an identity of a human subject present in the image.
