A novel fringe projection profilometry used for discontinuous shape measurement is proposed. One color fringe pattern generated by computer encoding with a sinusoidal fringe and two uniform intensity patterns is projected by a digital video projector and the deformed fringe pattern is recorded by a color CCD camera. The captured color fringe pattern is separated into its RGB components and division operation is applied to red and blue channels to reduce the variable reflection intensity. Shape information of tested object is decoded by applying an arcsine algorithm on the subpixel-scale normalized fringe pattern. To determine the shadow and dark background, the separated blue component is binarized and used to guide the phase extraction. The experimental results demonstrate the validity of the proposed method for discontinuous and dynamical shape measuring.