Though there are many file formats for graphics only a few are used for web purposes. Web graphics are an important part of web desiging. It is important to familiarize with them so that you can choose the best that suits your purpose.

Web graphics are an important part of web designing. Though there are many file formats for graphics only few are used for web purposes. It is important to familiarize with them so that you can choose the best that suits your purpose.

GIF (Graphic Interchange Format): In 1980 CompuServe Information Service popularized the Graphic Interchange Format as an efficient way to transmit images across data networks. It was adopted in 1990 by the World Wide Web due its efficiency and widespread familiarity.

Majority of images on the Web are now in GIF format, and the format is supported by all web browsers.GIF files use a compression scheme to keep file sizes at a minimum, and they are limited to 8-bit (256 or fewer colors) color palettes. Also the GIF compresses large fields of homogeneous color better than pictures with many colors and complex textures.With conventional (non-interlaced) GIF graphics, the browsers downloads one line of pixels at a time from top to bottom, display each line of the image as it gradually builds on the screen. In interlaced GIF files the image data is stored in a format that allows browsers to build a low-resolution version of the full-sized GIF picture on the screen while the file is downloading. It gives the reader a idea of the full area of the picture while the picture downloads.The GIF file format also allows you to combine multiple GIF images into a single file to create animation. The animations can be made to play again and again and again if looping is allowed. GIF animations are used in many a banners over the web.

JPEG (Joint Photographic Experts Group): This graphic file format commonly used on the Web to minimize graphics file sizes is the Joint Photographic Experts Group (JPEG) compression scheme.

Unlike GIF graphics, JPEG images are full-color image or true color images. JPEG can achieve incredible compression ratios, squeezing graphics down to as much as one hundred times smaller than the original file. But increasing the JPEG compression progressively can degrade the details of the image:Once an image is compressed using JPEG compression, data is lost and cannot be recovered from that image file. It is always better to save an uncompressed original file of your graphics or photographs as backup.Portable Network Graphic (PNG):Portable Network Graphic is an image format developed by a consortium of graphic software developers as a open source alternative to the GIF image format.PNG graphics offer a range of attractive features including a full range of color depths, support for sophisticated image transparency, better interlacing, and automatic corrections for display monitor gamma. PNG images can also hold a short text description of the image’s content, which allows Internet search engines to search for images based on these embedded text descriptions.

At this moment almost all of the major browser support PNG format.For practical purposes all formats are good and a difference is usually not appreciated by common eye. You can choose any of the three web graphics you are comfortable with.

Source: Free Articles from ArticlesFactory.com

  Avoid Graphical Overload
When designing a website, it's easy to start loading it up with graphics. While tempting, you have to resist -- otherwise, you'll end up with graphical overload. Why is that a bad thing? Here's why. It Takes Too Long to Download The first reason to cut down on graphics is that the more there are, and the larger they are, the longer it will take each of your pages to download. People are impatient when waiting for pages to download -- you only have around 5 seconds before your visitor hits the Back button. What can you do about this? Apart from using....

  Create a virtual 3D world on your website
Panoramas and VRML are two technologies web designers use to add virtual worlds to websites. VRML, which stands for virtual reality markup language, is a technology for animation and 3D modeling that lets you create 3D scenes for websites. A special VRML browser plug in lets you control the viewing of VRML components on web sites. Panoramas are another type of virtual reality component, similar in some ways to VRML in that....

  Creating and Promoting RSS Feeds to your website
rSS, or Really Simple Syndication as it is commonly known, is a technology that gives webmasters the ability to easily distribute and publish syndicated content on the Internet. It seems like all Internet businesses now have rss feeds available; at least your competitors do. You have finally made the decision that you have to have one. Where do you start? Steps to Creating an RSS feed 1.) Build a Feed There are a number of desktop and web applications available that make feed creation easy. I would encourage anyone creating a feed to use....

  Why is Optimizing Your Site For Speed is Important? Tips on How to do so!
by: Anthony Jewell If there is one thing we have all suffered through is waiting for a site to download online. It seems like it is the worse thing in the world and will never end. We actually either click off of the site or after the initial download of the frontpage completes, we then click off of the site because the subpages take too long to load. We have all been here and this article is to help make sure your visitors don't go through it as well. The reason why a websites speed of download is important is actually very....

  Making Money Through Product Resell Rights
Resell rights come in many forms and sizes. They can come in large packages with many products bundled together and offered for an almost suspiciously low price. Or they can be offered on a single product for a four-figure sum. There are also different types of rights offered allowing you to do different things. Basic resell rights only give you the right to sell the product. You cannot claim the product is your own and you do not have permission to offer the resell rights to anyone else. Basic resell rights are usually the cheapest, so it may be easier....

Trackback URL for this post:
http://www.problogtips.com/web-site-creation-different-types-of-web-graphics/2310/trackback/

Posted by Jaron in the catagory of... General Interest

No Trackbacks »