Most Popular Scripts | C & C++ | Scripts & Programs | Image Manipulation

Phase Correlation is a method to check the similarity of two images with equal size. It can be used for template matching, object tracking, motion estimation, etc. This is a function to compute phase correlation by taking a reference image and a template image. the function can be extended for object tracking applications.

In Image Processing, we will using FFT operation many times. Ufortunately, OpenCV only came with DFT function. So we need to use a third party FFT library in order to perform FFT operation. FFTW is a good choice. It's very fast and freely available at http://www.fftw.org. This is an example on how to perform FFT operation using FFTW in OpenCV. It simply loads an image, compute FFT & IFFT, then display the final result. The resulted image has no difference with the original, as it should.

PonXPM is a useful tool for converting regular image (PNG, JPEG, GIF and BMP) formats into an XPM.