1. A method for mapping an original image from a source gamut color subspace to a destination gamut color subspace, said method comprising the steps of: first filtering the original image to obtain a first intermediate image; gamut mapping the first intermediate image to obtain a second intermediate image; second filtering the first intermediate image to obtain a third intermediate image; and merging the second intermediate image and the third intermediate image to obtain a target image, where the merging step comprises merging the second intermediate image and the third intermediate image while preserving the color and spatial contents of the first intermediate image by moving pixels in the output gamut, based on certain criteria.