TAILIEUCHUNG - Taking Your Talent to the Web- P18

Taking Your Talent to the Web- P18:It was a simple solution to a complex problem. On one side, thousands of designers and art directors are eager to take their talents to the Web but aren’t sure how. On the other, web agencies could not find enough good web designers to get their work done. | 236 HOW Visual Tools Compression Breeds Style You will run into the same difficulty with lines at almost every angle. The 45-degree angle is the exception It works perfectly with LZW like a diagonal in a game of tic-tac-toe. As you might expect 45-degree angles came into vogue around 1999 because they reproduce well on the Web and within six months they were popping up in print and TV as a meaningless design fetish after everyone had tired of the striped effect. And as you might also expect many web designers employed 45-degree angles in JPEGs then saved the JPEGs at the highest possible quality settings to preserve the crispness of their lines. The result wasted bandwidth. PNG The PNG format was developed in hopes of establishing it as an open standard for graphics on the Web which it now is see Graphics PNG . But while PNG was slowly being developed working web designers had to create websites and all browsers supported GIFs. In effect then GIF is a long-standing unofficial defacto standard based on a proprietary compression algorithm while PNG is a nonproprietary officially sanctioned standard that is not as well supported as it ought to be. There are two forms of PNG. PNG-8 is an 8-bit format like GIF . PNG-24 offers 24-bit color like JPEG yet its sharpness and quality put JPEG to shame. To create PNG images for the Web simply choose PNG-24 or PNG-8 128 Dithered in Photoshop s Save For Web dialog box or in ImageReady. PNG is still not natively supported in enough web browsers and though support is growing PNG is unlikely to supplant GIF or JPEG any time soon. For one thing PNG while high in quality is often high in bandwidth as well. For another while PNG stays crisp in milk like GIFs do the PNG format does not support animation. GIFs are therefore seen as more versatile by those who even bother to lift their heads out of their cubicles and think about these issues. To see why PNG can be cool indeed if your browser can handle it visit the Audio site

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