| 释义 |
pixel
pix·el P0340150 (pĭk′səl, -sĕl′)n. The basic unit of a digital image, representing a single color or level of brightness.
[pix + el(ement).]pixel (ˈpɪksəl) n (Computer Science) any of a number of very small picture elements that make up a picture, as on a visual display unit[C20: from pix pictures + el(ement)]pix•el (ˈpɪk səl, -sɛl)
n. the smallest element of an image that can be individually processed in a video display system. [1965–70; pix2 + el (ement)] pix·el (pĭk′səl) The most basic unit of an image on a computer or television screen. Pixels are arranged in rows and columns and are lit up in a specific pattern to create an image.Did You Know? If you look at a panel in a comic book very closely, you will see that colored or shaded areas are often made of very tiny dots. Images on computer screens are also composed of very tiny dots known as pixels. (Pixel is a shortening of picture element.) The computer controls each pixel individually. Most monitors have hundreds of thousands or millions of pixels that are lit or dimmed to create an image. The colors on a monitor consist of arrangements of red, blue, and green pixels that adjust in intensity to create all of the colors that you see on a screen. Pixels vary in size according to the model of monitor. Monitors with the smallest pixels have the sharpest images, but they require more memory to store data about the color and intensity of each pixel.Thesaurus| Noun | 1. |  pixel - (computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot); "the greater the number of pixels per inch the greater the resolution"pel, picture elementconstituent, element, component - an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system; "spare components for cars"; "a component or constituent element of a system"raster - the rectangular formation of parallel scanning lines that guide the electron beam on a television screen or a computer monitorcomputer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures |
Translations
pixel
pixel peepslang To very carefully inspect, scrutinize, and correct the resolution, clarity, and quality of digital images or photographs. When I started getting into digital photography, I'll admit that I that I focused a bit too much on pixel peeping for a while. Later on though, I became less obsessive over technical quality and learned to appreciate well-composed photographs.See also: peep, pixelpixel peepingslang The act, habit, or practice of being particularly or overly critical of or sensitive to the resolution, clarity, and quality of digital images or photographs. When I started getting into digital photography, I'll admit that I that I focused a bit too much on pixel peeping for a while. Later on though, I became less obsessive over technical quality and learned to appreciate well-composed photographs in their own right.See also: peep, pixelpixel peeperslang Someone who is particularly or overly critical of or sensitive to the resolution, clarity, and quality of digital images or photographs. When I started getting into digital photography, I'll admit that I became quite a pixel peeper for a while. Later on though, I became less obsessive over technical quality and learned to appreciate well-composed photographs in their own right.See also: peeper, pixelpixel
pixel (piks -ĕl) Short for picture element. The smallest element of a digital image, such as that produced by a CCD. See imaging.pixel[pik′sel] (computer science) The smallest part of an electronically coded picture image. (electronics) The smallest addressable element in an electronic display; a short form for picture element. Also known as pel. pixel(1) (Pixel) See Chromebook Pixel, Pixel phone and Pixel C.
(2) (PIX [picture] ELement) The fundamental display element of an electronic screen or bitmapped image. Screen resolution is rated by the number of horizontal and vertical pixels; for example, 1024x768 means 1,024 pixels are displayed in each row, and there are 768 rows (lines). Likewise, bitmapped images are sized in pixels: a 350x250 image has 350 pixels across and 250 down.
Pixels and Subpixels
In monochrome systems, the pixel is the smallest addressable unit. With color systems, each pixel contains red, green and blue subpixels, and the subpixel is the smallest addressable unit for the screen's electronic circuits. The software addresses the pixel, and the hardware addresses the subpixels that make up the pixel. For more on the red, green, blue concept, see RGB.
Pixel Structures
In storage, pixels are made up of one or more bits. The greater this "color depth" or "bit depth," the more shades or colors can be represented. The most economical system is monochrome, which uses one bit per pixel (on/off). Gray scale and color typically use from four to 24 bits per pixel, providing from 16 to 16 million colors. See color depth.
Displaying the Pixel
On a display screen, pixels are either phosphor or liquid crystal elements. For monochrome, the element is either energized fully or not. For gray scale, the pixel is energized with different intensities, creating a range from light to dark. For color displays, the red, green and blue subpixels are each energized to a particular intensity, and the combination of the three-color intensities creates the perceived color to the eye. For subpixel details in an LCD screen, see LCD subpixels. See screen resolution, vertex shader and bad pixel.
 | | A Monochrome Bitmap |
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| The simplest pixel representation is a black and white monochrome image in which one bit represents one pixel. Monochrome CRTs use white, green or amber phosphors as a single color over a gray/black screen background. |
 | | Color is Always RGB |
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| Although the "9" appears monochrome, it is displayed on the color screen of a car's navigation system. Upon close inspection, one can see the red, green and blue subpixels. |
pixel
pixel [pik´sel] a picture element; a scan" >CT scan or PET scan is composed of an array of squares (pixels), each of which is colored a uniform shade of gray or another color. The corresponding region in the tissue slice that is imaged is called a voxel (volume element).pix·el (pik'sĕl), A contraction for picture element, a two-dimensional representation of a volume element (voxel) in the display of the CT or MR image, usually 512 × 512 or 256 × 256 pixels, respectively.pixel A portmanteau for picture element, the smallest discrete two-dimensional unit of a digital image.pix·el (piks'ĕl) A contraction for picture element, a two-dimensional representation of a volume element (voxel) in the display of the CT or MR image, usually 512 by 512 or 256 by 256 pixels respectively. pix·el (piks'ĕl) Contraction for picture element, two-dimensional representation of a volume element (voxel) in the display of the computed tomographic or magnetic resonance image, usually 512 × 512 or 256 × 256 pixels, respectively. See PX
PIXEL
| Acronym | Definition |
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| PIXEL➣Picture Element |
pixel
Related to pixel: megapixel, pixel peeperSynonyms for pixelnoun (computer science) the smallest discrete component of an image or picture on a CRT screen (usually a colored dot)SynonymsRelated Words- constituent
- element
- component
- raster
- computer science
- computing
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