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JPEG (.jpg) format Size: 34K
JPEG formats are the most common image format used on
the web. They are great for displaying photographs and
complex images. The file sizes are much smaller than that
of TIFF or PNG formats and much better quality and depth
than that of GIF formats. The difference between JPEG
formats from other formats is that JPEGs have a lossy
compression. Lossy compression means that the image loses
quality and information each time it is saved. A lot of
precautions should be made, because the more times you
save a JPEG file the more compressed it gets which leads
to poorer quality.
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GIF (.gif) format Size: 36K
GIF formats are the ideal for simple graphics such as tiles,
graphic texts, buttons, etc. GIF files can only be saved
as an 8 bit color-mapped image, which means that you are
only limited to 256 colors. The advantage that GIF formats
have over other formats is the capability of producing animations.
The other three formats are not capable and only produce
static images.
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PNG (.png) format Size: 191K
PNG formats were designed to replace the GIF format as well
as the TIFF format. PNG formats are lossless compression,
which means that no image data is lost when saving or viewing
the image. It is a universal format that is recognized by
the World Wide Web consortium, and supported by modern web
browsers. The quality of PNG files is on par with that of
TIFF files. PNG files also provide transparency similar
to GIF files. The difference is that PNG can range from
8-bit quality up to 64-bit quality. GIF files are only 8-bit.
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TIFF (.tiff) format Size: 297K
TIFF formats are also a lossless compression. Lossless compression
means that no image data is lost when saving or viewing
the image. TIFF files provide a very high level of detail
(up to 600dpi or 4800 X 6,600 pixels for a letter-sized
page. TIFF is especially good for print work such as brochures
and magazines because of the amount of quality and detail.
Although the quality is exceptional, it produces a very
large file size. This format is not recommended for the
web.
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Some information were obtained from
www.atlasoft.com/png.asp |
