Resampling — is the digital process of changing the sample rate or dimensions of digital imagery or audio by temporally or areally analysing and sampling the original data.AudioAudio resampling is also called sample rate conversion. This operation in digital… … Wikipedia
Bilinear interpolation — In mathematics, bilinear interpolation is an extension of linear interpolation for interpolating functions of two variables on a regular grid. The key idea is to perform linear interpolation first in one direction, and then again in the other… … Wikipedia
Lanczos resampling — ( Lanzosh ) is a multivariate interpolation method used to compute new values for any digitally sampled data. It is often used to resize digital images, but could be used for any other digital signal. In the case of digital image resizing, the… … Wikipedia
Bicubic interpolation — In mathematics, bicubic interpolation is an extension of cubic interpolation for interpolating data points on a two dimensional regular grid. The interpolated surface is smoother than corresponding surfaces obtained by bilinear interpolation or… … Wikipedia
Multivariate interpolation — In numerical analysis, multivariate interpolation or spatial interpolation is interpolation on functions of more than one variable. The function to be interpolated is known at given points and the interpolation problem consist of yielding values… … Wikipedia
Image scaling — In computer graphics, image scaling is the process of resizing a digital image. Scaling is a non trivial process that involves a trade off between efficiency, smoothness and sharpness. As the size of an image is increased, so the pixels which… … Wikipedia
List of numerical analysis topics — This is a list of numerical analysis topics, by Wikipedia page. Contents 1 General 2 Error 3 Elementary and special functions 4 Numerical linear algebra … Wikipedia
Video post-processing — The term post processing (or postproc for short) is used in the video/film business for quality improvement image processing (specifically digital image processing) methods used in video playback devices, (such as stand alone DVD Video players),… … Wikipedia
Nyquist–Shannon sampling theorem — Fig.1: Hypothetical spectrum of a bandlimited signal as a function of frequency The Nyquist–Shannon sampling theorem, after Harry Nyquist and Claude Shannon, is a fundamental result in the field of information theory, in particular… … Wikipedia
Demosaicing — A demosaicing algorithm is a digital image process used to reconstruct a full color image from the incomplete color samples output from an image sensor overlaid with a color filter array (CFA). Also known as CFA interpolation or color… … Wikipedia
Stairstep interpolation — In image processing, stairstep interpolation is a general method for interpolating the pixels after enlarging an image. The key idea is to interpolate multiple times in small increments using any interpolation algorithm that is better than… … Wikipedia