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39 relations: Affine transformation, Alpha compositing, Brightness, Chroma key, Chroma subsampling, CMYK color model, Color, Color model, Colorfulness, Compositing, Computer monitor, Data compression, Digital camera, GIF, Glossary of computer graphics, Grayscale, High color, HSL and HSV, Hue, Human eye, Hyperspectral imaging, Image scanner, Lightness, Lossy compression, Multispectral image, Negative (photography), Palette (computing), Pixel, Portable Network Graphics, Primary color, Retina, Spectroscopy, Specularity, Subtractive color, Visible spectrum, Web page, World Wide Web, YUV, 3D computer graphics.
Affine transformation
In geometry, an affine transformation, affine mapBerger, Marcel (1987), p. 38.
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Alpha compositing
In computer graphics, alpha compositing is the process of combining an image with a background to create the appearance of partial or full transparency.
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Brightness
Brightness is an attribute of visual perception in which a source appears to be radiating or reflecting light.
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Chroma key
Chroma key compositing, or chroma keying, is a visual effects/post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range).
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Chroma subsampling
Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.
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CMYK color model
The CMYK color model (process color, four color) is a subtractive color model, used in color printing, and is also used to describe the printing process itself.
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Color
Color (American English) or colour (Commonwealth English) is the characteristic of human visual perception described through color categories, with names such as red, orange, yellow, green, blue, or purple.
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Color model
A color model is an abstract mathematical model describing the way colors can be represented as tuples of numbers, typically as three or four values or color components.
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Colorfulness
Colorfulness, chroma and saturation are attributes of perceived color relating to chromatic intensity.
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Compositing
Compositing is the combining of visual elements from separate sources into single images, often to create the illusion that all those elements are parts of the same scene.
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Computer monitor
A computer monitor is an output device which displays information in pictorial form.
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Data compression
In signal processing, data compression, source coding, or bit-rate reduction involves encoding information using fewer bits than the original representation.
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Digital camera
A digital camera or digicam is a camera that captures photographs in digital memory.
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GIF
The Graphics Interchange Format, better known by its acronym GIF, is a bitmap image format that was developed by a team at the bulletin board service (BBS) provider CompuServe led by American computer scientist Steve Wilhite on June 15, 1987.
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Glossary of computer graphics
This is a glossary of terms relating computer graphics.
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Grayscale
In photography, computing, and colorimetry, a grayscale or greyscale image is one in which the value of each pixel is a single sample representing only an amount of light, that is, it carries only intensity information.
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High color
High color graphics (variously spelled Highcolor, Hicolor, Hi-color, Hicolour, and Highcolour, and known as Thousands of colors on a Macintosh) is a method of storing image information in a computer's memory such that each pixel is represented by two bytes.
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HSL and HSV
HSL (hue, saturation, lightness) and HSV (hue, saturation, value) are two alternative representations of the RGB color model, designed in the 1970s by computer graphics researchers to more closely align with the way human vision perceives color-making attributes.
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Hue
Hue is one of the main properties (called color appearance parameters) of a color, defined technically (in the CIECAM02 model), as "the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, green, blue, and yellow", (which in certain theories of color vision are called unique hues).
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Human eye
The human eye is an organ which reacts to light and pressure.
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Hyperspectral imaging
Hyperspectral imaging, like other spectral imaging, collects and processes information from across the electromagnetic spectrum.
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Image scanner
An image scanner—often abbreviated to just scanner, although the term is ambiguous out of context (barcode scanner, CT scanner etc.)—is a device that optically scans images, printed text, handwriting or an object and converts it to a digital image.
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Lightness
In colorimetry and color theory, lightness, also known as value or tone, is a representation of variation in the perception of a color or color space's brightness.
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Lossy compression
In information technology, lossy compression or irreversible compression is the class of data encoding methods that uses inexact approximations and partial data discarding to represent the content.
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Multispectral image
A multispectral image is one that captures image data within specific wavelength ranges across the electromagnetic spectrum.
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Negative (photography)
In photography, a negative is an image, usually on a strip or sheet of transparent plastic film, in which the lightest areas of the photographed subject appear darkest and the darkest areas appear lightest.
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Palette (computing)
In computer graphics, a palette is a finite set of colors.
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Pixel
In digital imaging, a pixel, pel, dots, or picture element is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen.
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Portable Network Graphics
Portable Network Graphics (PNG, pronounced or) is a raster graphics file format that supports lossless data compression.
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Primary color
A set of primary colors is, most tangibly, a set of real colorants or colored lights that can be combined in varying amounts to produce a gamut of colors.
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Retina
The retina is the innermost, light-sensitive "coat", or layer, of shell tissue of the eye of most vertebrates and some molluscs.
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Spectroscopy
Spectroscopy is the study of the interaction between matter and electromagnetic radiation.
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Specularity
Specularity is the visual appearance of specular reflections.
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Subtractive color
A subtractive color model explains the mixing of a limited set of dyes, inks, paint pigments or natural colorants to create a wider range of colors, each the result of partially or completely subtracting (that is, absorbing) some wavelengths of light and not others.
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Visible spectrum
The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye.
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Web page
A web page (also written as webpage) is a document that is suitable for the World Wide Web and web browsers.
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World Wide Web
The World Wide Web (abbreviated WWW or the Web) is an information space where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and accessible via the Internet.
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YUV
YUV is a color encoding system typically used as part of a color image pipeline.
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3D computer graphics
3D computer graphics or three-dimensional computer graphics, (in contrast to 2D computer graphics) are graphics that use a three-dimensional representation of geometric data (often Cartesian) that is stored in the computer for the purposes of performing calculations and rendering 2D images.
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Blue channel, Color channel, Color channels, Green channel, Image channels, RGB images, Red channel.
References
[1] https://en.wikipedia.org/wiki/Channel_(digital_image)
