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train.py
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executable file
·132 lines (132 loc) · 4.72 KB
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from __future__ import division
import matplotlib
matplotlib.use('Agg')
import numpy as np
import sys, os, argparse
from scipy.io import savemat
import datetime
sys.path.insert(0, 'lib')
from os.path import isfile, join, isdir, abspath
import cv2
import caffe
from caffe.proto import caffe_pb2
from google.protobuf import text_format
parser = argparse.ArgumentParser(description='Training DSS.')
parser.add_argument('--gpu', type=int, help='gpu ID', default=0)
parser.add_argument('--solver', type=str, help='solver', default='models/floss_solver.prototxt')
parser.add_argument('--weights', type=str, help='base model', default='models/vgg16convs.caffemodel')
parser.add_argument('--debug', type=str, help='debug mode', default='False')
def str2bool(str1):
if "true" in str1.lower() or "1" in str1.lower():
return True
elif "false" in str1.lower() or "0" in str1.lower():
return False
args = parser.parse_args()
assert isfile(args.solver)
assert isfile(args.weights)
DEBUG = str2bool(args.debug)
CACHE_FREQ = 1
CACHE_DIR = abspath('data/cache')
if not isdir(CACHE_DIR):
os.makedirs(CACHE_DIR)
if DEBUG:
from pytools.image import overlay
from pytools.misc import blob2im
import matplotlib.pyplot as plt
import matplotlib.cm as cm
def upsample_filt(size):
factor = (size + 1) // 2
if size % 2 == 1:
center = factor - 1
else:
center = factor - 0.5
og = np.ogrid[:size, :size]
return (1 - abs(og[0] - center) / factor) * \
(1 - abs(og[1] - center) / factor)
def interp_surgery(net, layers):
for l in layers:
m, k, h, w = net.params[l][0].data.shape
if m != k:
print('input + output channels need to be the same')
raise
if h != w:
print('filters need to be square')
raise
filt = upsample_filt(h)
net.params[l][0].data[range(m), range(k), :, :] = filt
caffe.set_mode_gpu()
caffe.set_device(args.gpu)
if not isdir('snapshots'):
os.makedirs('snapshots')
solver = caffe.SGDSolver(args.solver)
# get snapshot_prefix
solver_param = caffe_pb2.SolverParameter()
with open(args.solver, 'rb') as f:
text_format.Merge(f.read(), solver_param)
max_iter = solver_param.max_iter
# net surgery
interp_layers = [k for k in solver.net.params.keys() if 'up' in k]
interp_surgery(solver.net, interp_layers)
solver.net.copy_from(args.weights)
for p in solver.net.params:
param = solver.net.params[p]
for i in range(len(param)):
print(p, "param[%d]: mean=%.5f, std=%.5f"%(i, solver.net.params[p][i].data.mean(), \
solver.net.params[p][i].data.std()))
if DEBUG:
now = datetime.datetime.now()
cache_dir = join(CACHE_DIR, "%s-%s-%dH-%dM-%dS" % (args.solver.split(os.sep)[-1], str(now.date()), now.hour, now.minute,
now.second))
if not isdir(cache_dir):
os.makedirs(cache_dir)
for i in range(1, max_iter + 1, CACHE_FREQ):
cache_fn = join(cache_dir, "iter%d" % i)
solver.step(CACHE_FREQ)
keys = [None] * 7
for i in range(len(keys)):
if i <= 5:
keys[i] = "sigmoid_dsn%d" % (i + 1)
else:
keys[i] = "sigmoid_fuse"
mat_dict = dict()
for k in keys:
mat_dict[k + "_data"] = np.squeeze(solver.net.blobs[k].data)
mat_dict[k + "_grad"] = np.squeeze(solver.net.blobs[k].diff)
im = blob2im(solver.net.blobs['data'].data)
mat_dict["image"] = im
lb = np.squeeze(solver.net.blobs['label'].data)
mat_dict["label"] = lb
savemat(cache_fn, mat_dict)
im = overlay(im, lb)
dsn1 = np.squeeze(solver.net.blobs['sigmoid_dsn1'].data)
dsn2 = np.squeeze(solver.net.blobs['sigmoid_dsn2'].data)
dsn3 = np.squeeze(solver.net.blobs['sigmoid_dsn3'].data)
dsn4 = np.squeeze(solver.net.blobs['sigmoid_dsn4'].data)
dsn5 = np.squeeze(solver.net.blobs['sigmoid_dsn5'].data)
dsn6 = np.squeeze(solver.net.blobs['sigmoid_dsn6'].data)
fuse = np.squeeze(solver.net.blobs['sigmoid_fuse'].data)
dss_fuse = (dsn3 + dsn4 + dsn5 + fuse) / 4
fig, axes = plt.subplots(3, 3, figsize=(16, 16))
axes[0, 0].imshow(im)
axes[0, 0].set_title("image and label")
axes[0, 1].imshow(dsn1, cmap=cm.Greys_r)
axes[0, 1].set_title("DSN1")
axes[0, 2].imshow(dsn2, cmap=cm.Greys_r)
axes[0, 2].set_title("DSN2")
axes[1, 0].imshow(dsn3, cmap=cm.Greys_r)
axes[1, 0].set_title("DSN3")
axes[1, 1].imshow(dsn4, cmap=cm.Greys_r)
axes[1, 1].set_title("DSN4")
axes[1, 2].imshow(dsn5, cmap=cm.Greys_r)
axes[1, 2].set_title("DSN5")
axes[2, 0].imshow(dsn6, cmap=cm.Greys_r)
axes[2, 0].set_title("DSN6")
axes[2, 1].imshow(fuse, cmap=cm.Greys_r)
axes[2, 1].set_title("fuse (dsn1~6)")
axes[2, 2].imshow(dss_fuse, cmap=cm.Greys_r)
axes[2, 2].set_title("DSS style fuse (dsn3~5 + fuse)")
plt.savefig(cache_fn+'.jpg')
plt.close(fig)
print("Saving cache file to %s" % cache_fn)
else:
solver.solve()