Abstract: A film or paper for producing a colored image from a monochromatic source image comprising four silver halide emulsion layers. A first layer of slow speed emulsion produces an underexposed negative image while a second layer of slow speed emulsion produces an underexposed positive image. The two remaining layers of fast speed emulsion produce an overexposed positive image and an overexposed negative image.A novel process is disclosed wherein the film or paper is developed in a first developer and only two emulsion layers given reversal exposure. The four emulsions are then developed to three opposite tonal gradations in the three subtractive primary colors, thereby producing a false color image.