TBIDesigns

The PNG image file format is not new on the Web. It was originally developed in the mid-90s as a solution to the deficiencies in the traditional GIF image file format. However, since early browser applications offered only patchy support for PNG’s advanced features, Web designers, developers were limited in their use. A major obstacle particularly affect PNG’s was the Microsoft Internet Explorer (IE). Särklass most popular browser, IE offered particularly poor support for the file format. But with the launch of IE 7, and several JavaScript hack, this has all changed, and PNGs is more popular than ever.
But who cares! And apart from being one letter short of my favorite 1972 video games, what makes a PNG so great? Below are three reasons why PNGs is the best image format Polaroid ago.

They are the See-Thru! (Alpha Transparency):

Compared with the GIF, PNG offers a much less basic form of transparency. With the GIF for a specific color (or colors) can be saved as open and leave the colors either completely opaque or transparent. There is no in-between. PNGs have a clear advantage in this area. The PNG file format supports “semi-transparent pixels”, which means a PNG can be saved with a soft Drop Shadow and floated over a background. It can be used as a watermark in a textured or gradiented background. It can also be seamlessly faded from completely opaque to transparent, revealing the contents in the Web page. Summerour.net have a logo that shows this function. The website layout called for a logo with a soft drop shadow over a textured background of architectural sketches which regularly change. Using a GIF or JPG would be highly impractical, because every time the picture changed, the logo background would need to be edited. A PNG, however, is floated over the image with a faded Drop Shadow, which makes the task quick, simple and dynamic. PNGs make the look of your page flexible.

The Look Great! (Pristine compression):

Each time a JPEG is saved and compressed, it loses a part of the original file information and image quality degrades. GIF file format offers lossless compression (so that the file can be saved and resaved without losing image quality), but it supports only a limited 256 color palette, making it unusable for full-color photography and other such complex images. PNG offers the best of both worlds. It shows full color photographic images, like JPEG, but it also supports a managed color palette, as well as the GIF format. While PNG is normally a larger file size than JPEG for photographic images, it has a clear advantage: its compression is lossless, or images that never degrade in quality or suffer from “compression artifacting” that affects many JPEG images. The results are crisp, brighter images that will “pop” on your pages, unlike ever before.

They are Self Optimize! (Gamma Correct):

Adjust the brightness and contrast of images to locate in a variety of monitors and operating systems is a common problem for Web site. The problem is mainly related to different monitor Gamma settings. Gamma is a method monitors are used to distribute their luminance evenly over the display. Unfortunately, different operating systems (particularly Mac and Windows) use different Gamma settings. So an image that is color-corrected for the Macintosh operating system is currently too dark on the Windows operating system and vice versa. The PNG format offers a solution to the problem. The image can be saved with a built-in gamma correction, making it possible to predict the operating system’s Gamma settings and automatically adjusts its brightness and contrast. By using a PNG, designers can simply color-correct image for their personal operating system and let the PNG do the rest.