idct_2d

idct_2d(block)

Performs a 2D 8x8 Inverse Discrete Cosine Transform.

The 2D IDCT is computed by applying the 1D IDCT to each column and then to each row of the 8x8 block.

Kind: global function

Param	Type	Description
block	Float64Array	A pointer to a 64-element array (representing an 8x8 block) of DCT coefficients. The transformation is done in-place.