| Discrete Cosine Transform |
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| • | A
form of the Fourier Transform |
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| • | When
applied to an 88 block of samples |
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| (i.e.
pixel values) yields an 88 block of |
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| spatial
frequencies |
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| • | Original
88 block of samples can be |
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| recovered
from its DCT. |
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| – | Assuming
infinite arithmetic precision |
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