I have to find absorbtion profile of sample gas in spectroscopy experiment. I have recieved multiple images at 40 frames/sec and total number is 400 frames which is actually a hyperspectral data. Now I have to extract frequency information from a specific pixel for multiple frames so that to know the pixel intensity response for different frequencies. How can I get Amp vs Freq plot? whenevr I plot FFT I get Amp vs number of frames instead. Current plot is attached.
Any one can help!