Why is the use of PNG images in web design
The PNG image file format is not new to the Internet. Originally developed in the mid 90s as a solution to the shortcomings of the traditional GIF image file. However, as already offered support fragmented browser applications for advanced features of PNG, web designers, developers were limited in their use.
A major obstacle, especially in view of PNG was Microsoft Internet Explorer (IE). Far the most popular browser, IE offered special support for poorthe file format. However, with the release of IE 7, and several JavaScript hacks all that has changed, and PNG files are more popular than ever.
But who cares? And also, a brief letter of my favorite game-1972, which is what a PNG so big? Here are three reasons for PNG is the best image format since the Polaroid.
Are see-through! Transparency (Alpha):
What the comparison GIF, PNG offers a far less basic form of transparency. With GIFs, a) Certain color (or colors can be saved as transparent, so that the colors or completely opaque or transparent. We are in the middle.
PNG has a distinct advantage in this area. The PNG file format supported, semi-transparent pixels ", ie a PNG can be saved with soft shadow and floated require no prior knowledge. It can serve as a watermark on a textured background or gradiented be used. It can also be Smooth from completely opaque transparent, faded, revealing the webPage content below.
Summerour.net has a logo that shows this feature. The homepage layout called for a logo with a soft shadow over a textured background of architectural sketches, they change regularly. With a GIF or JPG would be very handy, because every time the image was changed, the background of the logo must be processed. A PNG, however, is to float above the image with the faded shadow of what the task quickly, easily and dynamically. PNG doAspect of your page flexible.
They look great! (Lossless compression):
Every time a JPEG compressed and stored, it loses some of the information, which is the original file and the image quality worse. The GIF format offers lossless compression (so that the file can be saved, and saved again without loss of quality), but only supports a limited 256 color palette, making it useless for full-color photography and other complex images.
PNG offers from the bestboth worlds. It displays color photos in JPEG format, but also supports a managed color palette, such as the GIF format. PNG, but it is usually a larger file size than JPEG for photos they have an edge: the compression is lossless, which is never lost the quality of the images, or suffers from "compression artifacts", which affects many JPEG images .
The results are sharper, brighter images that "pop" in your pages, unlikeever.
Are self Optimization! (Gamma Correction):
Adjust the brightness and contrast of images, that is not properly done on a variety of monitors and operating systems, a common problem for Web designers. This problem is mainly on the monitor gamma settings in a different context.
Gamma is a method that monitors used to distribute their uniform brightness across the screen. Unfortunately, different operating systems (in particular, for use on Mac and Windows)different gamma settings. Thus, a framework which color is for the Macintosh operating system can be adjusted to dark and vice versa on the Windows operating system.
The PNG format provides a solution for this problem. The image can be saved with built-in gamma correction, to recognize the settings of the range of system operation and automatically adjusts the brightness and contrast. Using a PNG, developers can easily view the color image correction for personal affairsSystems and enable PNG to do the rest.
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