Efficient subpixel image registration by crosscorrelation. This code gives the same precision as the FFT upsampled cross correlation in a small fraction of the computation time and with reduced memory requirements

这是本人自己遍的matlab程序,即对做过fft变换的相位嵌入水印的程序,-This is herself through matlab program, that is, to do FFT transform the phase of the embedded watermarking application,