An effective method based on the Fresnel transform method and rotational transformation for improving the image
quality on the condition of the arbitrarily tilted recording planes is proposed. As a kind of numerical reconstruction for
digital holography, Fresnel transform method has already been the most commonly used method. Rotational
transformation in Fourier space is an effective technique for simulating optical diffraction between nonparallel planes. In
addition to a FTM, the method requires performing a fast Fourier transform twice and a single Rotational Transformation,
which enables it to have the advantage of fast calculation. The effectiveness of the proposed method is demonstrated by
experiment, in which the distortion caused by the tilting of the object is removed.