Spectral Reconstruction

I have a small system which consist of: Led Clusters, camera(RGB or grayscale) and an object to be detected. I am emitting a light from the LED clusters (ex: yellow). After emitting light on the object, I am capturing an image for the object from the camera. I want to get the spectral image of the obj开发者_JAVA百科ect from the captured image. Please if any one knows the algorithm or a code for this purpose(grayscale or RGB camera), tell me. Thanks.....

It sounds like you want to compute the Fourier transform of the captured image, is that correct? If that's the case I think this could be a good start point

You want the color spectrum of an image but you only have an R,G,B value?

Good luck with that