Pixels make up images on displays and their number determines resolution. Common file formats include BMP for bitmaps, PNG for lossless web images, GIF for animations and logos with 256 colors, TIFF for publishing, JPEG for photos, PSD for Photoshop, PDF for documents, EPS for encapsulated PostScript, and AI for Adobe Illustrator. File compression reduces file sizes using algorithms, while digital asset management involves ingesting, cataloging, storing, and distributing digital assets like photos.

1. Ben Storer
Technical Glossary
Pixel and resolution:The term "pixel" is actually short for "Picture Element." These small little dots are what make up
the images on computer displays, whether they are flat-screen (LCD) or tube (CRT) monitors. The display resolution of a
digital television, computer monitors or
display device is the number of distinct pixels
in each dimension that can be displayed.
File formats and uses:
Bmp:Bmp is simply a bitmap. It is a raster graphics image file format used to store bitmap digital images, independently of
the display device.
Png:Png stands for portable network graphics. PNG was created as an improved, non-patented replacement for Graphics
Interchange Format (GIF), and is the most used lossless image compression format on the World Wide Web.
Gif:Gif stands for Graphics interchange format. The format supports up to 8 bits per pixel thus allowing a single image to
reference a palette of up to 256 distinct colors. The colors are chosen from the 24-bit RGB color space. It also supports
animations and allows a separate palette of 256 colors for each frame. The color limitation makes 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: This stands for tagged image file format. It is a file format for storing images, popular among graphic artists, the
publishing industry, and both amateur and professional photographers in general.
Jpg:JPEG compression is used in a number of image file formats. JPEG/Exif is the most common image format used by
digital cameras and other photographic image capture devices; along with JPEG/JFIF, it is the most common format for
storing and transmitting photographic images on the World Wide Web. These format variations are often not
distinguished, and are simply called JPEG.
Psd:It stands for Photoshop document, the default file extension of the proprietary file format of Adobe System's
Photoshop program.
Pdf:This stands for portable document format. It is a file format used to represent documents in a
manner independent of application software, hardware, and operating systems.
Eps:This means encapsulated postscript. It is a DSC-conforming PostScript document with additional
restrictions which is intended to be usable as a graphics file format.
Ai:This stands for Adobe illustrator artwork. It is a proprietary file format developed by Adobe Systems for representing
single-page vector-based drawings in either the EPS or PDF formats.
Compression:File compression is used to reduce the file size of one or more files. When a file or a
group of files is compressed, the resulting "archive" often takes up 50% to 90% less disk space than
the original file(s). Common types of file compression include Zip, Gzip, RAR, StuffIt, and 7z
compression. Each one of these compression methods uses a unique algorithm to compress the
data.
Image captures devices:The use of a device, such as a scanner or digital camera, to create a digital representation of
an image. This digital representation can then be stored and manipulated on a computer.
Optimising:Optimise meansmodify to achieve maximum efficiency in storage capacity or time or cost; "optimize a
computer program”.
Storage and asset management:Digital asset management (DAM) consists of management tasks and decisions
surrounding the ingestion, annotation, cataloguing, storage, retrieval and distribution of digital assets. Digital photographs,
animations, videos and music exemplify the target areas of media asset management (a sub-category of DAM).
Sites:
http://en.wikipedia.org/wiki/Digital_asset_management
http://www.thefreedictionary.com/optimise
http://en.mimi.hu/photography/image_capture.html
http://www.techterms.com/definition/file_compression
http://en.wikipedia.org/wiki/Adobe_Illustrator_Artwork
http://en.wikipedia.org/wiki/Encapsulated_PostScript
http://en.wikipedia.org/wiki/PSD
http://en.wikipedia.org/wiki/JPEG
http://en.wikipedia.org/wiki/Tagged_Image_File_Format
http://en.wikipedia.org/wiki/Graphics_Interchange_Format
http://en.wikipedia.org/wiki/Portable_Network_Graphics
http://en.wikipedia.org/wiki/BMP_file_format