def find_atlas(atlas=None):
if atlas:
return atlas
if atlas == None:
atlas = nl.find('TT_N27+tlrc.HEAD')
if atlas == None:
atlas = nl.find('TT_N27.nii.gz')
if atlas == None:
nl.error('Error: No atlas specified, and I can\'t find "TT_N27"',
level=nl.level.error)
return None
return atlas
def net_error(net, training_data):
error = [0.0, 0.0, 0.0, 0.0]
for i in range(4):
for row in training_data[i]:
e = net.forward_pass(row)
error[i] += nn.error(cfg.outputs[i], e)
error[i] /= len(training_data[i])
return sum(error)
def get_testing_error(net):
# choose an emotion:
error = [0.0, 0.0, 0.0, 0.0]
for i, emotion in enumerate(cfg.emojis):
test_cases = glob.glob('./test_data/non-training/' + emotion + '/*.png')
for test_case in test_cases:
inp = image.convert_to_1d(image.binary_image(test_case, cfg.RES))
e = net.forward_pass(inp)
error[i] += nn.error(cfg.outputs[i], e)
error[i] /= len(test_cases)
return sum(error)
