Zig Zag Scan Module

jpegenc.subblocks.zig_zag.zig_zag.zig_zag

Zig-Zag Module

This module performs the zig-zag reorderding. According to the zig-zag matrix the input list of signals is reordered. The inputs and the ouputs are parallel. The parameter N defines the size of the NxN block.

Inputs:

List of signals of a NxN block

Outputs:

Reordered list of signals of a NxN block

Parameters:= the size of the NxN block (N) –

class jpegenc.subblocks.zig_zag.zig_zag_scan(N)

static build_zig_zag_matrix(N)

Build the zig-zag matrix Code taken from http://paddy3118.blogspot.gr/2008/08/zig-zag.html

zig_zag(signal_list)

Zig-zag scan function