How does digital cinema compress images?
The development of digital technologies has drastically modified the requirements and constraints that a good image representation format should meet. Originally, the requirements were to achieve good compression efficiency while keeping the computational complexity low. This has led in 1992 to the standardization of the JPEG format, which is still widely used today (see Chapter 8). Over the years however, many things have evolved: more computing power is available and the development of Internet has required image representation formats to be more flexible and network- oriented, to enable efficient access to images through heterogeneous devices.
KeywordsDiscrete Cosine Transform Wavelet Transform Wavelet Coefficient Resolution Level Detail Coefficient
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