Image Defogging Algorithm Based on Sparse Representation

Table 1

K-SVD algorithm steps.

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Input: pending signal , initialize dictionary to DCT dictionary

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Process:
 step (1): normalize the initialization dictionary ; set the number of iterations:

 step (2): while do

  step (2.1): fix the dictionary and find , and

  step (2.2): dictionary update using formula (8)

  step (2.3): get the dictionary after k iterations

 step (3): end while

Output: updated dictionary

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