diff options
Diffstat (limited to 'Wrappers')
| -rwxr-xr-x | Wrappers/Python/ccpi/optimisation/functions/IndicatorBox.py | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/Wrappers/Python/ccpi/optimisation/functions/IndicatorBox.py b/Wrappers/Python/ccpi/optimisation/functions/IndicatorBox.py index dd2162c..6c18ebf 100755 --- a/Wrappers/Python/ccpi/optimisation/functions/IndicatorBox.py +++ b/Wrappers/Python/ccpi/optimisation/functions/IndicatorBox.py @@ -84,39 +84,32 @@ if __name__ == '__main__': ig = ImageGeometry(voxel_num_x = N, voxel_num_y = M) u = ig.allocate('random_int') - tau = 10 + tau = 2 f = IndicatorBox(2, 3) lower = 10 upper = 30 + + z1 = f.proximal(u, tau) - x = u + z2 = f.proximal_conjugate(u/tau, 1/tau) - z1 = (x.maximum(lower)).minimum(upper) + z = z1 + tau * z2 - z2 = x - tau * ((x/tau).maximum(lower)).minimum(upper) + numpy.testing.assert_array_equal(z.as_array(), u.as_array()) + + out1 = ig.allocate() + out2 = ig.allocate() - z = z1 + z2/tau + f.proximal(u, tau, out=out1) + f.proximal_conjugate(u/tau, 1/tau, out = out2) - print(z.array, x.array) + p = out1 + tau * out2 + numpy.testing.assert_array_equal(p.as_array(), u.as_array()) -# prox = f.proximal(u, tau) -# prox_conj = f.proximal_conjugate(u/tau, tau) -# -# -# z = prox + tau * prox_conj -# print(z.as_array(), u.array) -# x - tau * ((x/tau).maximum(self.lower)).minimum(self.upper) + - - - - - - - - +
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