Zero-watermarking methods provide promising solutions and impressive performance
for copyright protection of images without changing the original images. In this paper, a novel
zero-watermarking method for color images is envisioned. Our envisioned approach is based on
multi-channel orthogonal Legendre Fourier moments of fractional orders, referred to as MFrLFMs. In this
method, a highly precise Gaussian integration method is utilized to calculate MFrLFMs. Then, based
on the selected accurate MFrLFMs moments, a zero-watermark is constructed. Due to their accuracy,
geometric invariances, and numerical stability, the proposed MFrLFMs-based zero-watermarking method
shows excellent resistance against various attacks. Performed experiments using the proposed watermarking
method show the outperformance over existing watermarking algorithms.