Spatial and Frequency Domain Comparison of Interpolation Techniques in Digital Image Processing
نویسندگان
چکیده
This article presents a comparison of different interpolation techniques both in the spatial and frequency domains. Various methods are presented, from a very simple linear interpolation to more complex cubic convolution. The Fourier analysis is used to compare the methods in the frequency domain. Methods are compared by doubling the images in both spatial directions and calculating the signal-to-noise ratio between the original and interpolated images. The paper will also include some notes on subjective image quality.
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