Image conversion
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There are many different image types available nowadays. To name a few of the more popular ones, these are JPEGs, GIFs, BITMAPs. JPEGs are used for staric images using compression in order to make the file size smaller. They seem to be the most popular used in the web due to the popularity of digital cameras as JPEG is generally the default file format. GIF can be used both for animation and still images. BITMAP files have a .bmp extension and store images with no compression, though they are much larger in size.
Image converter is a software or utility that converts images between formats, performs bitmap to vector conversion and batch conversion (though that's not a full list of featurs as they may vary with different converters).
Converting Images
The primary difficulty in converting between image formats is that there are numerous graphics file formats and graphics software programs capable of converting images. Many image formats are native to one specific graphic application and are not offered as an export option in other software, due to proprietary considerations, and not all formats are compatible with one another. In general, bitmap formats and vector formats are freely inter convertible. Most image editing software is capable of importing and exporting in a variety of formats, and a number of specialized image converters exist.
Lossy vs lossless image formats
Different image formats use different types of data compression. JPEG format uses wavelet transforms, while bitmap format typically has no compression. Conversion between multiple image formats that engage in lossy data compression can result in rapid image degradation. Master images are best stored in a raw format, while images intended for dissemination may be more usefully stored in a compressed form.