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The importance of tab rollers in accessibility of images

Image maps contain several links and invisible buttons, the logos and trademarks are helpful for business or organizations because for any business trademark is very important for name recognition and branding, thumb nails is one of the form of the image it is in the thumb nail sized version of an image, when the user click on to it he can have another page large in size and in version but has got the same image, web graphics are categorized as two file formats one is bit map and second is vector. In the beginning accessibility of the

Animation of PNG graphics

The well known PNG format is APNG it has got many features, it supports for animation and in additional to it has got 24 bit images, and eight bit transparency, the ordinary frames with two additional data chunks is contained in an APNG file, for all APNG data there are certain rules, they are in glance the size of the total APNG is the size of the first frame, an aCLT chunk must appear before any IDAT chunks and fCLT  chunk must appear before the IDAT chunks. Before the entire image is read APNG is designed to allow incremental display of

Optimization of PNG

PNG  is used for images it is a file format, it can be used by everyone it is a free file there are many advantages in using PNG, the minor advantage only that it can be used by anybody, the present PNG format is the replacement of the older PNG format and in few ways it is the replacement of the TIFF format also. The PNG is used mainly in things they are World Wide Web and image editing. PNG is considered to be the better one when it is compared to GIF, it has got alpha channels that has transparency and gamma corrections which corrects the

Preparing Images for the Web

There are many doubts regarding when the user should use images to enhance his web site many people may not be knowing what is a GIF, now we are going to learn how to prepare images there is a graphic which contains several links on it that is called image maps, it has got many hot spots and also many invisible buttons. Which can be clicked by the user, in this there is another form that is logos and trademarks which is useful for the users business and organizations trademark and it is also crucial for name recognition and branding.In preparing

SMIL and Realtext

You have already seen an overview of G2/SMIL technology, URls for all the tools you’ll need and a detailed G2/SMIL Tutorial if you have been following our series of articles on SMIL/G2, The first tutorial covered the SMIL language and RealPix and enabled you to get started creating your own SMIL presentations if you were able to follow through. We’ll cover Real Text, and show you how to use it along with RealPix in your SMIL presentations. In this tutorial. we consulted RealNetworks RealText Creation Guide To get started we used the Real

SMIL format: an easy way to create an awesome presentation

The SMIL format can help a person to create a presentation, by integrating independent multimedia objects and synchronizing them. SMIL allows it's users to define the behavior of the presentation in time, describe how the presentation will look on the screen and associate hyperlinks to the media objects. Basically, the SMIL documents are of XML 1.0 type, so if you want to learn how to use SMIL, it's best to first learn XML. A SMIL document is made of two parts: the head and the body of the document. The head element contains

Advantages and Disadvantage of Using Flash

The author of this article does not have anything deep against Flash. They just feel that that space could be better used in other ways. Here are some of the disadvantages they suggest come with developing a flash introduction for your web site: "- Increase in file size of the homepage This is one of the important disadvantages of using Flash intros on your web site - it increases the time the homepage takes to load. I don't think you will create a Flash intro that has only vector objects. There would definitely be images (raster graphics). This

Accessible Image Tab Rollovers

In the beginning it was to overcome a specific problem. Now it's there just for the joy of web developers everywhere. "The essence of Pixy’s Fast Rollovers involves creating one image for each navigation item that includes normal, hover and active states stacked on top of each other. Later, we’ll use CSS to change the background-position to reveal each state at the appropriate time.Figure 1.1 on the right shows an example image that I’ve created and used for Fast Company’s new navigation. Each state is 20px tall with a total image height of

How to Prepare Images

Questions about when you should use images to enhance your web site. Wondering what a GIF actually is? Herman Drost has you covered: "When to use images for your web site - Navigation Graphical buttons can link to other pages or resources. Image Maps – this is a graphic that contains several links on it. It has several “hot spots” or invisible buttons, you can click on. For example you could have a photograph of your family and put a hot spot on each person’s face that links to that person’s web site. Logos and Trademarks – your

Introduction to XML

Steve Holzner, another big name in the computing world has written a very informative article that covers many different ways to use XML. This is only one of them: "XML at Work: Synchronized Multimedia Integration Language Synchronized Multimedia Integration Language (SMIL, pronounced "smile") has been around for quite some time. It's a W3C standard that you can find more about at http://www.w3.org/AudioVideo/#SMIL. SMIL attempts to fix a problem with modern "multimedia" browsers. Usually, such browsers can handle only one aspect of multimedia

Visual Communication Resources

Altavista.com Use Altavista to search for images, MP3/Audio or Video files. MP3/Audio and video file searches can be limited by duration (less than a minute, more than a minute). adFlip "adflip.com is the world's largest searchable database of classic print ads. You can search by category, by decade [from the 1940s], even by year. The 'what are you looking for' search box allows you to type in a brand name and even a specific model name. We won't guarantee that you will always get a match, but you may be surprised at what is lurking deep in our

W3C Activity: Audio and Video

Introduction Starting out as a tool for accessing ASCII-based hypertext, the World Wide Web has been very successful in integrating new media types like images, virtual worlds or downloadable program code. In the last year, we have been witnessing major progress in the integration of two more media types, namely audio and video. For instance, the Web is now used as an interface to Internet telephones and videophones, i.e. for applications that allow people to talk and see each other in real-time on the Internet. Web-based audio/video-on-demand, i.e.

RealSystem G2 & SMIL

The Web and its related technologies are maturing, starting to take shape and become that which we've been yearning for all this time. The caveman days of the Web are over! After all, even our great-grandfathers knew how to make simple flipbook animations, and the majority of animation on the Web has been simple multiple-frame GIFs--today's version of those ancient flipbooks. And the video up until now has been stuff that no undergraduate would even consider presenting to his professor. So why all the hubbub about the Web? The answer to that lies in

Scalable Vector Graphics and Geographic Information Systems

A quantum leap in Web graphics is happening right now.A new technology defined by the W3C called SVG (Scalable Vector Graphics) is bringing rich, compelling, interactive, high-resolution graphics to the Web. This technology is particularly attractive to GIS developers and users. Today, most mapping systems employ two approaches when delivering interactive maps on the web.The first approach is the familiar Java applet.The second approach involves generating map images on the server and delivering them to the user in either GIF or JPEG image

Scalable Vector Graphics (SVG): Vector Graphics for the Web

The early browsers for the Web were predominantly aimed at retrieval of textual information. Whilst Tim Berners-Lee's original browser for the NeXT computer allowed images to be viewed, they appeared in a separate window and were not an integral part of the Web page. The <img> tag was introduced by Marc Andreessen in the Mosaic browser in 1993 and this provided a way of adding raster images to Web pages. In 1994 Dave Raggett developed an X-browser that allowed text to flow around images and tables. Images then became a firmly established component


 
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