JPEG
JPEG – Joint Photographic Experts Group, most popular image
format which is used for photographs and other images on Web. In this format,
images can be compressed to greater extent without compromising the quality of
the image (remember, do not compress to greater extent which may lead to loss
of quality). It uses the method of “Lossy Compression” and in this method, it
removes the colors which are not visible to human perception. Thus, resulting
image appears similar to the original image even after the compression process.
JPEG does not fit for images which consists of text and solid blocks. Since,
the text, fine lines and block gets blurred during the compression process and
results as a low quality image.
GIF
GIF – Graphical Interchange Format. It is suitable for small
images with less colors. It produces the best result upon compression, when
the image is small and consists of few colors
(less than or equal to 256 colors) since the quality of the image is
not lost during compression. Logos,
diagrams, graphics and other images which have relatively few colors can be
stored in GIF format.
TIFF
TIFF – Tagged Image File Format. It is a raster based file
format for digital images. It has become the standard for graphics with color
depth of 32 bit and can be used for image manipulation. TIFF can be converted
to any of the image formats such as BMP, JPEG, GIF and so on. It provides high
quality images with minute details upon conversion.
PNG
PNG – Portable Network Graphics. This image format is
majorly used in Web. It is the superior version of GIF. Original image quality
is not lost during image compression. It supports maximum of 256 colours and its file size is
smaller when compared to that of GIF format. Details are maintained effectively
in PNG and it allows 8 bit transparency.
On the whole, every image
format has its own quality in terms of appearance and clarity. Each format
serves for different purposes. To summarize, JPEG and PNG are the standard
formats for web. TIFF images highly support conversion to any image format.
While, GIF acts as a good platform for small images with less colours.
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