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ODG image files are associated with OpenOffice OpenDocument (Ver 2) and are Graphics documents. The OpenDocument vector file specification uses the .ODG extension. The purpose of ODG files is to have a free, non-proprietary file type that anyone can use. In Windows, you can open .ODG files with the open-source programs OpenOffice.org Draw and LibreOffice Draw.
The OpenDocument Format (ODF) is an XML-based file format for representing electronic documents such as spreadsheets, charts, presentations, drawings and word processing documents. The standard was developed by the OASIS, and is a free and open format that aims to work with any office suite of products. The specifications were originally developed by Sun Microsystems. OpenDocument format supports document representation: A single XML document and as a collection of several subdocuments within a package.
JPG's are often used for web sites and email as they are generally smaller file sizes as they are lossy meaning that some image quality is lost when the JPG is compressed and saved. The resultant 'lossy' file means that quality can never be recovered. The JPG format is often used in digital camera memory cards. The JPG file is a great format as it often manages to compress files to 1/10 of the size of the original file which is especially good for saving on bandwidth.
JPG is a graphical file format for editing still images, it offers a symmetrical compression technique which is processor intensive and time consiming in both compression and decompression. JPEG is a joint standard of the International Telecommunications Union (ITU-T T.81) and the International Organization for Standardization (ISO 10918-1). JPEG involves a lossy compression mechanism using discrete cosine transform (DCT). Compression rates of 100:1 can be achieved, although the loss is noticeable at that level. Compression rates of 10:1 or 20:1 yield little degradation in image quality.
Associated programs
Adobe Photoshop Apple Preview Corel Paint Shop Pro Microsoft Windows Photo Gallery Viewer
