The image sorting system sorts normal chicken breast meat fillets from chicken fillets that exhibit wooden breast myopathy (i.e. WB fillets). In the preferred embodiment, a camera and associated controller gather data and construct a digital image of a chicken breast fillet as it travels on a conveyer belt. The digital image is used to calculate a centroid (i.e. center of mass) of the fillet. As the fillet moves over a nose of the conveyor belt and free-falls to a lower conveyor belt, the controller determines the distance between the fillet centroid and a reference point (preferably the conveyer belt axis of rotation). If the distance exceeds a predetermined minimum distance, the fillet is designated a WB fillet.