A device independent colour space is one where the coordinates used to specify the colour will produce the same colour wherever they are applied. An example of a device independent colour space is the CIE L*a*b* colour space (known as CIELAB and based on the human visual system).
RGB is a device-dependent color model: different devices detect or reproduce a given RGB value differently, since the color elements (such as phosphors or dyes) and their response to the individual red, green, and blue levels vary from manufacturer to manufacturer, or even in the same device over time.
A program or application that will work on any peripheral devices within a certain protocol is considered device independent. Dialing a telephone number is a simple example of a device-independent action.
A color model is a system used to describe a color. For example with Red, Green and Blue (RGB) elements or Cyan, Magenta, Yellow and Black (CMYK). A color space is a way of mapping real colors to the color model's particular values.
It provides two categories of resources: device-independent and device-dependent. Device-independent resources, such as ID2D1Geometry, are kept on the CPU. Device-dependent resources, such as ID2D1RenderTarget and ID2D1LinearGradientBrush, directly map to resources on the GPU (when hardware acceleration is available).
Device independence allows the user to prepare output without regard for the control characters required for message heading, line separation, and so on. Input to device independence consists of a data string with optional new-line characters.
A term used to refer to any computer application or software package that can generate output that is perceptibly identical regardless of the characteristics or brand of the output device.
The two types of color models used are additive color models and subtractive color models. An example of an additive color model is the RGB color model. The RGB color model uses red, green, and blue light to create all the other colors of light and is used in digital spaces.
Device independence means that functions of an end-user application are available on any suitable end-device without the need to modify the application itself. Commonly, the device independence is achieved by separating the application from lower layers of the device.
(adj.) Like machine-dependent, device-dependent refers to programs that can run only on a certain type of hardware (i.e., their ability to function depends on the devices on which they run).
Device-independent access means that the user may interact with the user agent or document with a preferred input (or output) device -- mouse, keyboard, voice, head wand, or other.
The most commonly used device-independent color space is the three-component XYZ color space developed by CIE.
The RGB color space is often used on computer monitors. As such, it is device dependent. Printers typically use CMYK colorants. Each printer implements its own version of the CMYK color space.
Lab is the reference space used by the CMS to translate from one color space to another during the conversion process. Because the color it defines is based on human vision and not any particular output device, it is called device independent.
There are several established color models used in computer graphics, but the two most common are the RGB model (Red-Green-Blue) for computer display and the CMYK model (Cyan-Magenta-Yellow-blacK) for printing.
A color model is a way of specifying or describing a color numerically; common examples include RGB, HSV and CMYK. For example, in the 24-bit-deep RGB color model, the intensity of each of the red, green and blue components of the model (8 bits for each channel) are represented on a scale from 0 to 255.
RGB Color Space
RGB stands for Red, Green, and Blue. This color space is widely used in computer graphics.
RGB is the colour mode most commonly used for Screen graphics simply because this is the way most screens work. Most printers use this method now as it is cheap to manufacture and has become the standard.
When referring to video, many people use the term “color space” when actually referring to the “color model.” Some common color models include RGB, YUV 4:4:4, YUV 4:2:2, and YUV 4:2:0. This page aims to explain the representation of color in a video setting while outlining the differences between common color models.
Colour models provide a standard way to specify a particular colour, by defining a 3D coordinate system, and a subspace that contains all constructible colours within a particular model. Any colour that can be specified using a model will correspond to a single point within the subspace it defines.
What is Device Independence? Device independence is a design principle that aims to make Web sites and applications work on as many devices as possible, ensuring as broad a potential adoption as possible.
A DIU (also known as a Device Independent Pixel, or DIP) measurement is based on inches rather than hardware-specific pixels. A DIU is defined as 1/96 of an inch (smaller than the point, which is defined as 1/72 of an inch). For a standard 96 pixel per inch monitor, 96 DIU = 96 pixels.
A device-independent software performs I/O functions common to all devices and provides a uniform interface user-level softwares. Though writing completely device-independent software is difficult, modules that are common among all devices can be written relatively easily.