A Simple Introduction to Spectrum Map
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This presentation is a simple introduction to spectrum map, which is a way to represent images based on spatial frequencies of grey value or colour variations over the image plane. The presentation explains the concepts of Fourier series and Fourier transform, which are used to convert spatial functions into spatial spectra, and shows some examples of amplitude and phase spectra of different images. The presentation also demonstrates how different frequency components affect the image reconstruction and quality. The presentation aims to help the audience understand the basics of spatial spectrum and its applications in digital image processing.
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