sigpy.prox.L1Reg

class sigpy.prox.L1Reg(shape, lamda)

Proximal operator for l1 regularization.

\[\min_x \frac{1}{2} \| x - y \|_2^2 + \lambda \| x \|_1\]

Parameters:

• shape (tuple of ints) – input shape
• lamda (float) – regularization parameter

__init__(shape, lamda)

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(shape, lamda)

Initialize self.