Write
a Glossary of the following key technical terms and subjects:
·
Pixel
In digital imaging, a pixel, 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. The address of a pixel corresponds to its physical coordinates. LCD pixels are manufactured in a two-dimensional grid, and are often represented using dots or squares, but CRT pixels correspond to their timing mechanisms and sweep rates.
· Colour
Models – RGB and CMYK
RGB is known as the primary colour model. Any device that uses light to display graphics eg TVs, film projectors, computer monitors, used the RGB colour model. When combinations of pure red, green and blue are applied, they produce either Cyan, Magenta or Yellow.
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. CMYK refers to the four inks used in some color printing: cyan, magenta, yellow, and key (black). Though it varies by print house, press operator, press manufacturer, and press run, ink is typically applied in the order of the abbreviation.
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. CMYK refers to the four inks used in some color printing: cyan, magenta, yellow, and key (black). Though it varies by print house, press operator, press manufacturer, and press run, ink is typically applied in the order of the abbreviation.
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Resolution
Image resolution is the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail.
Image resolution can be measured in various ways. Basically, resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to physical sizes (e.g. lines per mm, lines per inch), to the overall size of a picture (lines per picture height, also known simply as lines, TV lines, or TVL), or to angular subtenant. Line pairs are often used instead of lines; a line pair comprises a dark line and an adjacent light line. A line is either a dark line or a light line. A resolution 10 lines per millimeter means 5 dark lines alternating with 5 light lines, or 5 line pairs per millimeter (5 LP/mm). Photographic lens and film resolution are most often quoted in line pairs per millimeter.
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Raster
Images: file formats and uses - psd, bmp, gif, tiff, jpg, png
In computer graphics, a raster graphics image, or bitmap, is a dot matrix data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats. They are made up of pixels the image may look like it is clear but when you zoom up on the image it is a bunch of squares which are known as pixels.
PSD
PSD stands for Photoshop development which means what you do with your images you can always do it on Photoshop.
http://acronyms.thefreedictionary.com/PSD
BMP
A bmp file or format is also known as a bitmap image file or also a device or an independent bitmap file it is raster graphic images file format used to also store bitmap digital images.
http://en.wikipedia.org/wiki/BMP_file_format
GIF
In computer graphics, a raster graphics image, or bitmap, is a dot matrix data structure representing a generally rectangular grid of pixels, or points of color, viewable via a monitor, paper, or other display medium. Raster images are stored in image files with varying formats. They are made up of pixels the image may look like it is clear but when you zoom up on the image it is a bunch of squares which are known as pixels.
PSD
PSD stands for Photoshop development which means what you do with your images you can always do it on Photoshop.
http://acronyms.thefreedictionary.com/PSD
BMP
A bmp file or format is also known as a bitmap image file or also a device or an independent bitmap file it is raster graphic images file format used to also store bitmap digital images.
http://en.wikipedia.org/wiki/BMP_file_format
GIF
The Graphics Interchange Format (better known by its acronym GIF; /ˈdʒɪf/ or /ˈɡɪf/) is a bitmap image format that was introduced by CompuServe in 1987[1] and has since come into widespread usage on the World Wide Web due to its wide support and portability.The format supports up to 8 bits per pixel for each image, allowing a single image to reference its own palette of up to 256 different colors chosen from the 24-bit RGB color space. It also supports animations and allows a separate palette of up to 256 colors for each frame. These palette limitations make the GIF format unsuitable for reproducing color photographs and other images with continuous color, but it is well-suited for simpler images such as graphics or logos with solid areas of color.
TIFF
TIFF is a computer file format for storing raster graphics images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general. The format was originally created by the company Aldus for use in desktop publishing. When Adobe Systems acquired Aldus, they published Version 6 (1993) of the TIFF specification which dropped the Microsoft reference. TIFF remains a published specification under the control of Adobe Systems.
JPG
In computing, JPEG (seen most often with the .jpg or .jpeg filename extension) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality.
PNG
A portable network graphics better know as png is a rafter graphics format that supports loss less data compression. PNG was created by as a improved graphic and a non patented for graphics file format.
·
Vector
Images: file formats and uses - eps, wmf, fla, svg, ai
VECTOR IMAGES
Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygons—all of which are based on mathematical expressions—to represent images in computer graphics
http://en.wikipedia.org/wiki/Vector_graphics
EPS
Encapsulated PostScript (EPS) is a DSC-conforming PostScript document with additional restrictions which is intended to be usable as a graphics file format. In other words, EPS files are more-or-less self-contained, reasonably predictable PostScript documents that describe an image or drawing and can be placed within another PostScript document. Simply, an EPS file is a PostScript program, saved as a single file that includes a low-resolution preview "encapsulated" inside of it, allowing some programs to display a preview on the screen.
http://en.wikipedia.org/wiki/Encapsulated_PostScript
VECTOR IMAGES
Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygons—all of which are based on mathematical expressions—to represent images in computer graphics
http://en.wikipedia.org/wiki/Vector_graphics
EPS
Encapsulated PostScript (EPS) is a DSC-conforming PostScript document with additional restrictions which is intended to be usable as a graphics file format. In other words, EPS files are more-or-less self-contained, reasonably predictable PostScript documents that describe an image or drawing and can be placed within another PostScript document. Simply, an EPS file is a PostScript program, saved as a single file that includes a low-resolution preview "encapsulated" inside of it, allowing some programs to display a preview on the screen.
http://en.wikipedia.org/wiki/Encapsulated_PostScript
·
Cross-platform
Images: format and uses - pdf
CROSS PLATFORM IMAGES
In computing, cross-platform, or multi-platform, is an attribute conferred to computer software or computing methods and concepts that are implemented and inter-operate on multiple computer platforms. The software and methods are also said to be platform independent. Cross-platform software may be divided into two types; one requires individual building or compilation for each platform that it supports, and the other one can be directly run on any platform without special preparation, e.g., software written in an interpreted language or pre-compiled portable byte code for which the interpreters or run-time packages are common or standard components of all platforms.
·
Compression
- lossy and lossless
In information technology, "lossy" compression is the class of data encoding methods that uses inexact approximations (or partial data discarding) for representing the content that has been encoded. Such compression techniques are used to reduce the amount of data that would otherwise be needed to store, handle, and/or transmit the represented content. The different versions of the photo of the cat at the right demonstrate how the approximation of an image becomes progressively coarser as more details of the data that made up the original image are removed. The amount of data reduction possible using lossy compression can often be much more substantial than what is possible with lossless data compression techniques. Lossy compression loses some of the data.
LOSSLESS COMPRESSION
Lossless data compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data. By contrast, lossy data compression permits reconstruction only of an approximation of the original data, though this usually improves compression rates (and therefore reduces file sizes). Also lossless compreshioon losses nothing.
LOSSY COMPRESION
In information technology, "lossy" compression is the class of data encoding methods that uses inexact approximations (or partial data discarding) for representing the content that has been encoded. Such compression techniques are used to reduce the amount of data that would otherwise be needed to store, handle, and/or transmit the represented content. The different versions of the photo of the cat at the right demonstrate how the approximation of an image becomes progressively coarser as more details of the data that made up the original image are removed. The amount of data reduction possible using lossy compression can often be much more substantial than what is possible with lossless data compression techniques. Lossy compression loses some of the data.
LOSSLESS COMPRESSION
Lossless data compression is a class of data compression algorithms that allows the original data to be perfectly reconstructed from the compressed data. By contrast, lossy data compression permits reconstruction only of an approximation of the original data, though this usually improves compression rates (and therefore reduces file sizes). Also lossless compreshioon losses nothing.
·
Image Capture Devices – scanner, digital camera,
tablet/smartphone
for the image capture dvice i whouild probaly use the tablet becuse it has a good quility pichure.
·
Optimising
In computer science, program optimization or software optimization is the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources. In general, a computer program may be optimized so that it executes more rapidly, or is capable of operating with less memory storage or other resources, or draw less power.
In computer science, program optimization or software optimization is the process of modifying a software system to make some aspect of it work more efficiently or use fewer resources. In general, a computer program may be optimized so that it executes more rapidly, or is capable of operating with less memory storage or other resources, or draw less power.
·
Storage
and Asset Management
You can put image and audio file on a storage device such as a memory stick.
You can put image and audio file on a storage device such as a memory stick.
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