Website Graphics And Their Formats
Graphics
are an essential element of many websites, but especially when it comes
to marketing cosmetic surgery on the Internet. There
are many ways in which you can utilize graphics, one of the most powerful
being the before-and-after photo. Good before-and-after patient photos
can often speak more for your abilities than even the best written copy.
As such, they should definitely be included in your website, and you’ll
no doubt find that other types of graphics will come in handy as well.
It’s important, however, that you use graphics properly and with
care. Poor usage can cause problems for your visitors, one of the worst
of which is slow download times. Part of using graphics properly includes
using them in the correct formats. While there are hundreds of image
formats that can be used, only a few of them are appropriate. These
include GIF, JPEG and PNG formats and are detailed below.
- GIF (Graphics Interchange Format). GIF is likely the most common
and oldest format on the Internet. This format supports animation, interlacing
and transparency. Multiple images can be tied together to create animation,
while interlacing allows images to fade in slowly, which is useful for
larger images. Transparency allows an image color to be transparent
so that the background of the web page shows through. In addition, GIF
also provides excellent compression so images can be optimized to very
small sizes. On the downside, GIF images can include only 256 colors.
Further, a proprietary encoding/decoding scheme patented by Unisys is
used in GIF formats and Unisys has recently been demanding compensation
from some companies creating commercial image applications.
- JPEG (Joint Photographic Experts Group). JPEG, also known as JPG,
is another commonly used format on the Internet. This format uses a
lossy compression scheme so that image bits are removed as you optimize,
resulting in images that tend to get fuzzier with the more compression.
Though some definition is lost, JPEG images can often be compressed
to smaller sizes than with GIF formats. Further, JPEG formats support
more than 256 colors. Images with gradients, paintings and photos for
instance, are best used in JPEG formats, while images with sharp definition,
clipart and text for instance, are best in GIF or PNG formats.
- PNG (Portable Network Graphics). This is a new, up-and-coming format
that many believe will take over the GIF format in the future. PNG
allows for more than 256 colors, has all the same feature of GIF with
the exception of animation, and involves a compression algorithm that
is public domain. Further, the compression is non-lossy, unlike JPEG
formats, so that image bits are not lost with compression. Care should
be taken when using the PNG format because older browsers may not
support it. Currently, all newer browsers do support PNG formats.