Methods and systems for evaluating an imager that produces bi-chrome images from a scanner or a digital imaging device, the bi-chrome images having pixels of a first and second color. In one embodiment, a method for evaluating an imager includes generating an image that contains pixels of a first color and a second color. The image may be analyzed to determine information about particles of the first and second color. The particles may be described as contiguous pixels of the same color, and the particle information may relate to the size and quantity of the particles of each color. The method may further include determining if the image is unacceptable based on the particle information compared to predefined objective criteria.