Digital Image Authentication: A Review
International Journal of Digital Library Systems
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The most popular method for abstracting visual information from video images is based around image grabbing techniques. This is expensive, bulky and quite often too slow. It also requires the use of large amounts of processing power. There are a number of applications, ranging from intelligent toys to machine vision and security applications which need either low cost video images or ones that can be digitally manipulated. The main criteria for the camera described was its manufactured cost-below $20. If had to be easily mass produced and small enough to fit into mobile toys, such as radio controlled cars