Abstract: Color quantization is an important operation with many applications in computer graphics and image processing and analysis. Clustering algorithms have been extensively applied to this ...

Abstract: In digital computations, errors resulting from sampling and amplitude quantization (round off) are unavoidable. This work evaluates the mean-square error ...

As we discussed at the beginning of this series, sampling has nothing to do with digitization, or quantization. A sampled signal can remain in the analog domain, though digitized signals are sampled ...

No matter how many bits an analog-to-digital converter (ADC) provides, the digital output can only approximate the original signal. This approximation gives rise to ...

It is not surprising that the world around us is getting more and more digitized. One reason might be that manipulation, storage, and usage of data in digital form is more convenient and easier than ...