6. A method of generating a Completely Automated Public test to Tell Computers and Humans Apart (CAPTCHA), comprising the steps of: storing a database of images and annotations corresponding to the images, each image depicting a concept or object intended for human recognition; presenting a composite image on a computer display, the composite image including plurality of different images randomly selected from the database; selecting one of the images from the composite image; distorting the selected image and presenting the distorted image along with a separate list of words, one of which best annotates the distorted image; and assuming that the recipient of the image is a human as opposed to a machine if the correct word is selected to annotate the distorted image.
6. A method of generating a Completely Automated Public test to Tell Computers and Humans Apart (CAPTCHA), comprising the steps of: storing a database of images and annotations corresponding to the images, each image depicting a concept or object intended for human recognition; presenting a composite image on a computer display, the composite image including plurality of different images randomly selected from the database; selecting one of the images from the composite image; distorting the selected image and presenting the distorted image along with a separate list of words, one of which best annotates the distorted image; and assuming that the recipient of the image is a human as opposed to a machine if the correct word is selected to annotate the distorted image. 11. The method of claim 6 , further including the steps of: selecting one of the images from the composite image by clicking in an area at or near the geometric center of one of the images in the composite image; and wherein the process is repeated if the clicking does not occur at or near the geometric center of one of the images.