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# Image scaling

In computer graphics and digital imaging, image scaling refers to the resizing of a digital image. [1]

60 relations: Adobe Illustrator, Anti-aliasing filter, Bicubic interpolation, Bilinear interpolation, Castlevania: Rondo of Blood, Castlevania: Symphony of the Night, Computer graphics, Digital imaging, Digital signal processing, Directional Cubic Convolution Interpolation, Display contrast, DOSBox, Evelyn De Morgan, Fourier transform, Fourth generation of video game consoles, Frequency domain, Game engine, Game engine recreation, Graphics software, High-definition video, Hqx, Image quality, Image tracing, Inkscape, Interpolation, Inverse problem, Iterative reconstruction, Jaggies, Lanczos resampling, List of video game emulators, Machine learning, Mipmap, Nearest-neighbor interpolation, Nyquist–Shannon sampling theorem, OpenGL, PaintShop Pro, Peak signal-to-noise ratio, Pixel art, Pixel-art scaling algorithms, PlayStation Network, Raster graphics, Reconstruction filter, Regularization (mathematics), Resolution enhancement technology, Ringing artifacts, Sample-rate conversion, Scalable Vector Graphics, ScummVM, Seam carving, Sonic's Ultimate Genesis Collection, ... Expand index (10 more) »

Adobe Illustrator is a vector graphics editor developed and marketed by Adobe Systems.

## Anti-aliasing filter

An anti-aliasing filter (AAF) is a filter used before a signal sampler to restrict the bandwidth of a signal to approximately or completely satisfy the sampling theorem over the band of interest.

## Bicubic interpolation

In mathematics, bicubic interpolation is an extension of cubic interpolation for interpolating data points on a two-dimensional regular grid.

## Bilinear interpolation

In mathematics, bilinear interpolation is an extension of linear interpolation for interpolating functions of two variables (e.g., x and y) on a rectilinear 2D grid.

## Castlevania: Rondo of Blood

Castlevania: Rondo of Blood is a platform-adventure video game developed by Konami for the PC Engine's Super CD-ROM² System directed by Toru Hagihara.

## Castlevania: Symphony of the Night

Castlevania: Symphony of the Night is a platform-adventure action role-playing game developed and published by Konami in 1997 for the PlayStation.

## Computer graphics

Computer graphics are pictures and films created using computers.

## Digital imaging

Digital imaging or digital image acquisition is the creation of a digitally encoded representation of the visual characteristics of an object, such as a physical scene or the interior structure of an object.

## Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

## Directional Cubic Convolution Interpolation

Directional Cubic Convolution Interpolation (DCCI) is an edge-directed image scaling algorithm created by Dengwen Zhou and Xiaoliu Shen.

## Display contrast

Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.). Contrast in physics is a quantity intended to correlate with the perceived brightness contrast, usually defined by one of a number of formulae (see below) which involve e.g. the luminances of the stimuli considered, for example: ΔL/L near the luminance threshold (known as Weber contrast), or LH/LL for much higher luminances.

## DOSBox

DOSBOX (stylized as DOSBox) is an emulator program which emulates an IBM PC compatible computer running a DOS operating system.

## Evelyn De Morgan

Evelyn De Morgan (30 August 1855 – 2 May 1919) was an English painter whose works were influenced by the style of the Pre-Raphaelite movement.

## Fourier transform

The Fourier transform (FT) decomposes a function of time (a signal) into the frequencies that make it up, in a way similar to how a musical chord can be expressed as the frequencies (or pitches) of its constituent notes.

## Fourth generation of video game consoles

In the history of computer and video games, the fourth generation (more commonly referred to as the 16-bit era) of games consoles began on October 30, 1987 with the Japanese release of NEC Home Electronics' PC Engine (known as the TurboGrafx-16 in North America).

## Frequency domain

In electronics, control systems engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency, rather than time.

## Game engine

A game engine is a software development environment designed for people to build video games.

## Game engine recreation

Game engine recreation is a type of video game engine remastering process whereby a new game engine is written from scratch as a clone of the original with the ability to load the original game's data files such as music, textures, scripts, shaders, levels, and more.

## Graphics software

In computer graphics, graphics software refers to a program or collection of programs that enable a person to manipulate images or models visually on a computer.

## High-definition video

High-definition video is video of higher resolution and quality than standard-definition.

## Hqx

In image processing, hqx ("hq" stands for "high quality" and "x" stands for magnification) is one of the pixel art scaling algorithms developed by Maxim Stepin, used in emulators such as Nestopia, FCEUX, higan, Snes9x, ZSNES and many more.

## Image quality

Image quality (often Image Quality Assessment, IQA) is a characteristic of an image that measures the perceived image degradation (typically, compared to an ideal or perfect image).

## Image tracing

In computer graphics, image tracing, raster-to-vector conversion or vectorization is the conversion of raster graphics into vector graphics.

## Inkscape

Inkscape is a free and open-source vector graphics editor; it can be used to create or edit vector graphics such as illustrations, diagrams, line arts, charts, logos and complex paintings.

## Interpolation

In the mathematical field of numerical analysis, interpolation is a method of constructing new data points within the range of a discrete set of known data points.

## Inverse problem

An inverse problem in science is the process of calculating from a set of observations the causal factors that produced them: for example, calculating an image in X-ray computed tomography, source reconstruction in acoustics, or calculating the density of the Earth from measurements of its gravity field.

## Iterative reconstruction

Iterative reconstruction refers to iterative algorithms used to reconstruct 2D and 3D images in certain imaging techniques.

## Jaggies

"Jaggies" is the informal name for artifacts in raster images, most frequently from aliasing, which in turn is often caused by non-linear mixing effects producing high-frequency components or missing or poor anti-aliasing filtering prior to sampling.

## Lanczos resampling

Lanczos resampling and Lanczos filtering are two applications of a mathematical formula.

## List of video game emulators

The following is a list of video game system emulators for arcade games, home video game consoles and handheld game consoles.

## Machine learning

Machine learning is a subset of artificial intelligence in the field of computer science that often uses statistical techniques to give computers the ability to "learn" (i.e., progressively improve performance on a specific task) with data, without being explicitly programmed.

## Mipmap

In computer graphics, mipmaps (also MIP maps) or pyramids are pre-calculated, optimized sequences of images, each of which is a progressively lower resolution representation of the same image.

## Nearest-neighbor interpolation

Nearest-neighbor interpolation (also known as proximal interpolation or, in some contexts, point sampling) is a simple method of multivariate interpolation in one or more dimensions.

## Nyquist–Shannon sampling theorem

In the field of digital signal processing, the sampling theorem is a fundamental bridge between continuous-time signals (often called "analog signals") and discrete-time signals (often called "digital signals").

## OpenGL

Open Graphics Library (OpenGL) is a cross-language, cross-platform application programming interface (API) for rendering 2D and 3D vector graphics.

## PaintShop Pro

PaintShop Pro (PSP) is a raster and vector graphics editor for Microsoft Windows.

## Peak signal-to-noise ratio

Peak signal-to-noise ratio, often abbreviated PSNR, is an engineering term for the ratio between the maximum possible power of a signal and the power of corrupting noise that affects the fidelity of its representation.

## Pixel art

Pixel art is a form of digital art, created through the use of software, where images are edited on the pixel level.

## Pixel-art scaling algorithms

Pixel-art scaling algorithms are graphical filters that are often used in video game emulators to enhance hand-drawn 2D pixel art graphics.

## PlayStation Network

PlayStation Network (PSN) is a digital media entertainment service provided by Sony Interactive Entertainment.

## Raster graphics

In computer graphics, a raster graphics or bitmap image is a dot matrix data structure that represents a generally rectangular grid of pixels (points of color), viewable via a monitor, paper, or other display medium.

## Reconstruction filter

In a mixed-signal system (analog and digital), a reconstruction filter is used to construct a smooth analog signal from a digital input, as in the case of a digital to analog converter (DAC) or other sampled data output device.

## Regularization (mathematics)

In mathematics, statistics, and computer science, particularly in the fields of machine learning and inverse problems, regularization is a process of introducing additional information in order to solve an ill-posed problem or to prevent overfitting.

## Resolution enhancement technology

Resolution enhancement technology (RET) is a form of image processing technology used to manipulate dot characteristics popular among laser printer and inkjet printer manufacturers.

## Ringing artifacts

In signal processing, particularly digital image processing, ringing artifacts are artifacts that appear as spurious signals near sharp transitions in a signal.

## Sample-rate conversion

Sample-rate conversion is the process of changing the sampling rate of a discrete signal to obtain a new discrete representation of the underlying continuous signal.

## Scalable Vector Graphics

Scalable Vector Graphics (SVG) is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation.

## ScummVM

Script Creation Utility for Maniac Mansion Virtual Machine (ScummVM) is a set of game engine recreations.

## Seam carving

Seam carving (or liquid rescaling) is an algorithm for content-aware image resizing, developed by Shai Avidan, of Mitsubishi Electric Research Laboratories (MERL), and Ariel Shamir, of the Interdisciplinary Center and MERL.

## Sonic's Ultimate Genesis Collection

Sonic's Ultimate Genesis Collection (Sega Mega Drive Ultimate Collection in PAL regions) is a compilation of video games developed by Backbone Entertainment and published by Sega for PlayStation 3 and Xbox 360.

## Spline interpolation

In the mathematical field of numerical analysis, Spline interpolation is a form of interpolation where the interpolant is a special type of piecewise polynomial called a spline.

## Structural similarity

The structural similarity (SSIM) index is a method for predicting the perceived quality of digital television and cinematic pictures, as well as other kinds of digital images and videos.

## Thumbnail

Thumbnails are reduced-size versions of pictures or videos, used to help in recognizing and organizing them, serving the same role for images as a normal text index does for words.

## Vector graphics

Vector graphics are computer graphics images that are defined in terms of 2D points, which are connected by lines and curves to form polygons and other shapes.

## Video game

A video game is an electronic game that involves interaction with a user interface to generate visual feedback on a video device such as a TV screen or computer monitor.

## Video game console emulator

A video game console emulator is a type of emulator that allows a computing device to emulate a video game console's hardware and play its games on the emulating platform.

## Virtual Console

, also abbreviated as VC, is a line of downloadable video games (mostly unaltered) for Nintendo's Wii and Wii U home gaming consoles and the Nintendo 3DS portable gaming console.

## Web browser

A web browser (commonly referred to as a browser) is a software application for accessing information on the World Wide Web.

## Whittaker–Shannon interpolation formula

The Whittaker–Shannon interpolation formula or sinc interpolation is a method to construct a continuous-time bandlimited function from a sequence of real numbers.

## Xbox Live

Xbox Live is an online multiplayer gaming and digital media delivery service created and operated by Microsoft.

## References

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