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visualizer.py
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import numpy as np
import os
import ntpath
import time
from . import util
from . import html
class Visualizer():
def __init__(self, opt):
# self.opt = opt
self.display_id = opt.display_id
self.use_html = opt.isTrain and not opt.no_html
self.win_size = opt.display_winsize
self.name = opt.name
if self.display_id > 0:
import visdom
self.vis = visdom.Visdom(port = opt.display_port)
self.display_single_pane_ncols = opt.display_single_pane_ncols
if self.use_html:
self.web_dir = os.path.join(opt.checkpoints_dir, opt.name, 'web')
self.img_dir = os.path.join(self.web_dir, 'images')
print('create web directory %s...' % self.web_dir)
util.mkdirs([self.web_dir, self.img_dir])
self.log_name = os.path.join(opt.checkpoints_dir, opt.name, 'loss_log.txt')
with open(self.log_name, "a") as log_file:
now = time.strftime("%c")
log_file.write('================ Training Loss (%s) ================\n' % now)
# |visuals|: dictionary of images to display or save
def display_current_results(self, visuals, epoch):
if self.display_id > 0: # show images in the browser
if self.display_single_pane_ncols > 0:
h, w = next(iter(visuals.values())).shape[:2]
table_css = """<style>
table {border-collapse: separate; border-spacing:4px; white-space:nowrap; text-align:center}
table td {width: %dpx; height: %dpx; padding: 4px; outline: 4px solid black}
</style>""" % (w, h)
ncols = self.display_single_pane_ncols
title = self.name
label_html = ''
label_html_row = ''
nrows = int(np.ceil(len(visuals.items()) / ncols))
images = []
idx = 0
for label, image_numpy in visuals.items():
label_html_row += '<td>%s</td>' % label
images.append(image_numpy.transpose([2, 0, 1]))
idx += 1
if idx % ncols == 0:
label_html += '<tr>%s</tr>' % label_html_row
label_html_row = ''
white_image = np.ones_like(image_numpy.transpose([2, 0, 1]))*255
while idx % ncols != 0:
images.append(white_image)
label_html_row += '<td></td>'
idx += 1
if label_html_row != '':
label_html += '<tr>%s</tr>' % label_html_row
# pane col = image row
self.vis.images(images, nrow=ncols, win=self.display_id + 1,
padding=2, opts=dict(title=title + ' images'))
label_html = '<table>%s</table>' % label_html
self.vis.text(table_css + label_html, win = self.display_id + 2,
opts=dict(title=title + ' labels'))
else:
idx = 1
for label, image_numpy in visuals.items():
#image_numpy = np.flipud(image_numpy)
self.vis.image(image_numpy.transpose([2,0,1]), opts=dict(title=label),
win=self.display_id + idx)
idx += 1
if self.use_html: # save images to a html file
for label, image_numpy in visuals.items():
img_path = os.path.join(self.img_dir, 'epoch%.3d_%s.png' % (epoch, label))
util.save_image(image_numpy, img_path)
# update website
webpage = html.HTML(self.web_dir, 'Experiment name = %s' % self.name, reflesh=1)
for n in range(epoch, 0, -1):
webpage.add_header('epoch [%d]' % n)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
img_path = 'epoch%.3d_%s.png' % (n, label)
ims.append(img_path)
txts.append(label)
links.append(img_path)
webpage.add_images(ims, txts, links, width=self.win_size)
webpage.save()
# errors: dictionary of error labels and values
def plot_current_errors(self, epoch, counter_ratio, opt, errors):
if not hasattr(self, 'plot_data'):
self.plot_data = {'X':[],'Y':[], 'legend':list(errors.keys())}
self.plot_data['X'].append(epoch + counter_ratio)
self.plot_data['Y'].append([errors[k] for k in self.plot_data['legend']])
self.vis.line(
X=np.stack([np.array(self.plot_data['X'])]*len(self.plot_data['legend']),1),
Y=np.array(self.plot_data['Y']),
opts={
'title': self.name + ' loss over time',
'legend': self.plot_data['legend'],
'xlabel': 'epoch',
'ylabel': 'loss'},
win=self.display_id)
# errors: same format as |errors| of plotCurrentErrors
def print_current_errors(self, epoch, i, errors, t):
message = '(epoch: %d, iters: %d, time: %.3f) ' % (epoch, i, t)
for k, v in errors.items():
message += '%s: %.3f ' % (k, v)
print(message)
with open(self.log_name, "a") as log_file:
log_file.write('%s\n' % message)
# save image to the disk
def save_images(self, webpage, visuals, image_path):
image_dir = webpage.get_image_dir()
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
webpage.add_header(name)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(image_dir, image_name)
util.save_image(image_numpy, save_path)
ims.append(image_name)
txts.append(label)
links.append(image_name)
webpage.add_images(ims, txts, links, width=self.win_size)
def mkdir(self,path):
if not os.path.exists(path):
os.makedirs(path)
# save image to the disk
def save_images_to_dir(self, image_dir, visuals, image_path):
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
full_path_strs = image_path[0].split('/')
save_dir = os.path.join(image_dir, 'img_fake_only', full_path_strs[-3], full_path_strs[-2])
self.mkdir(save_dir)
label = 'fake_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
save_dir = os.path.join(image_dir, 'img_all', full_path_strs[-3], full_path_strs[-2])
self.mkdir(save_dir)
label = 'fake_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir, image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'real_A'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'real_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'fake_A'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'rec_A'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'rec_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
def save_seg_images_to_dir(self, image_dir, visuals, image_path):
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
full_path_strs = image_path[0].split('/')
save_dir = os.path.join(image_dir, 'img_fake_only', full_path_strs[-3], full_path_strs[-2])
self.mkdir(save_dir)
label = 'fake_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
save_dir = os.path.join(image_dir, 'img_all', full_path_strs[-3], full_path_strs[-2])
self.mkdir(save_dir)
label = 'fake_B'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir, image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)
label = 'real_A'
image_numpy = visuals[label]
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(save_dir,image_name)
if not os.path.exists(save_path):
util.save_image(image_numpy, save_path)