-
Notifications
You must be signed in to change notification settings - Fork 0
/
Sketch_RNN.py
358 lines (243 loc) · 8.96 KB
/
Sketch_RNN.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
import numpy as np
import time
import random
import cPickle
import codecs
import collections
import os
import math
import json
import tensorflow as tf
from six.moves import xrange
from IPython.display import SVG, display
import PIL
from PIL import Image
import matplotlib.pyplot as plt
np.set_printoptions(precision=8, edgeitems=6, linewidth=200, suppress=True)
import svgwrite
tf.logging.info("TensorFlow Version: %s", tf.__version__)
from magenta.models.sketch_rnn.sketch_rnn_train import *
from magenta.models.sketch_rnn.model import *
from magenta.models.sketch_rnn.utils import *
from magenta.models.sketch_rnn.rnn import *
def draw_strokes(data, factor=0.2, svg_filename = '/tmp/sketch_rnn/svg/sample.svg'):
tf.gfile.MakeDirs(os.path.dirname(svg_filename))
min_x, max_x, min_y, max_y = get_bounds(data, factor)
dims = (50 + max_x - min_x, 50 + max_y - min_y)
dwg = svgwrite.Drawing(svg_filename, size=dims)
dwg.add(dwg.rect(insert=(0, 0), size=dims,fill='white'))
lift_pen = 1
abs_x = 25 - min_x
abs_y = 25 - min_y
p = "M%s,%s " % (abs_x, abs_y)
command = "m"
for i in xrange(len(data)):
if (lift_pen == 1):
command = "m"
elif (command != "l"):
command = "l"
else:
command = ""
x = float(data[i,0])/factor
y = float(data[i,1])/factor
lift_pen = data[i, 2]
p += command+str(x)+","+str(y)+" "
the_color = "black"
stroke_width = 1
dwg.add(dwg.path(p).stroke(the_color,stroke_width).fill("none"))
dwg.save()
display(SVG(dwg.tostring()))
def make_grid_svg(s_list, grid_space=10.0, grid_space_x=16.0):
def get_start_and_end(x):
x = np.array(x)
x = x[:, 0:2]
x_start = x[0]
x_end = x.sum(axis=0)
x = x.cumsum(axis=0)
x_max = x.max(axis=0)
x_min = x.min(axis=0)
center_loc = (x_max+x_min)*0.5
return x_start-center_loc, x_end
x_pos = 0.0
y_pos = 0.0
result = [[x_pos, y_pos, 1]]
for sample in s_list:
s = sample[0]
grid_loc = sample[1]
grid_y = grid_loc[0]*grid_space+grid_space*0.5
grid_x = grid_loc[1]*grid_space_x+grid_space_x*0.5
start_loc, delta_pos = get_start_and_end(s)
loc_x = start_loc[0]
loc_y = start_loc[1]
new_x_pos = grid_x+loc_x
new_y_pos = grid_y+loc_y
result.append([new_x_pos-x_pos, new_y_pos-y_pos, 0])
result += s.tolist()
result[-1][2] = 1
x_pos = new_x_pos+delta_pos[0]
y_pos = new_y_pos+delta_pos[1]
return np.array(result)
data_dir = 'http://github.com/hardmaru/sketch-rnn-datasets/raw/master/aaron_sheep/'
models_root_dir = '/tmp/sketch_rnn/models'
model_dir = '/tmp/sketch_rnn/models/aaron_sheep/layer_norm'
download_pretrained_models(models_root_dir=models_root_dir)
def load_env_compatible(data_dir, model_dir):
model_params = sketch_rnn_model.get_default_hparams()
with tf.gfile.Open(os.path.join(model_dir, 'model_config.json'), 'r') as f:
data = json.load(f)
fix_list = ['conditional', 'is_training', 'use_input_dropout', 'use_output_dropout', 'use_recurrent_dropout']
for fix in fix_list:
data[fix] = (data[fix] == 1)
model_params.parse_json(json.dumps(data))
return load_dataset(data_dir, model_params, inference_mode=True)
def load_model_compatible(model_dir):
model_params = sketch_rnn_model.get_default_hparams()
with tf.gfile.Open(os.path.join(model_dir, 'model_config.json'), 'r') as f:
data = json.load(f)
fix_list = ['conditional', 'is_training', 'use_input_dropout', 'use_output_dropout', 'use_recurrent_dropout']
for fix in fix_list:
data[fix] = (data[fix] == 1)
model_params.parse_json(json.dumps(data))
model_params.batch_size = 1 # only sample one at a time
eval_model_params = sketch_rnn_model.copy_hparams(model_params)
eval_model_params.use_input_dropout = 0
eval_model_params.use_recurrent_dropout = 0
eval_model_params.use_output_dropout = 0
eval_model_params.is_training = 0
sample_model_params = sketch_rnn_model.copy_hparams(eval_model_params)
sample_model_params.max_seq_len = 1 # sample one point at a time
return [model_params, eval_model_params, sample_model_params]
[train_set, valid_set, test_set, hps_model, eval_hps_model, sample_hps_model] = load_env_compatible(data_dir, model_dir)
reset_graph()
model = Model(hps_model)
eval_model = Model(eval_hps_model, reuse=True)
sample_model = Model(sample_hps_model, reuse=True)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
load_checkpoint(sess, model_dir)
def encode(input_strokes):
strokes = to_big_strokes(input_strokes).tolist()
strokes.insert(0, [0, 0, 1, 0, 0])
seq_len = [len(input_strokes)]
draw_strokes(to_normal_strokes(np.array(strokes)))
return sess.run(eval_model.batch_z, feed_dict={eval_model.input_data: [strokes], eval_model.sequence_lengths: seq_len})[0]
def decode(z_input=None, draw_mode=True, temperature=0.1, factor=0.2):
z = None
if z_input is not None:
z = [z_input]
sample_strokes, m = sample(sess, sample_model, seq_len=eval_model.hps.max_seq_len, temperature=temperature, z=z)
strokes = to_normal_strokes(sample_strokes)
if draw_mode:
draw_strokes(strokes, factor)
return strokes
def decode(z_input=None, draw_mode=True, temperature=0.1, factor=0.2):
z = None
if z_input is not None:
z = [z_input]
sample_strokes, m = sample(sess, sample_model, seq_len=eval_model.hps.max_seq_len, temperature=temperature, z=z)
strokes = to_normal_strokes(sample_strokes)
if draw_mode:
draw_strokes(strokes, factor)
return strokes
z = encode(stroke)
_ = decode(z, temperature=0.8)
stroke_list = []
for i in range(10):
stroke_list.append([decode(z, draw_mode=False, temperature=0.1*i+0.1), [0, i]])
stroke_grid = make_grid_svg(stroke_list)
draw_strokes(stroke_grid)
z0 = z
_ = decode(z0)
stroke = test_set.random_sample()
z1 = encode(stroke)
_ = decode(z1)
z_list = []
N = 10
for t in np.linspace(0, 1, N):
z_list.append(slerp(z0, z1, t))
reconstructions = []
for i in range(N):
reconstructions.append([decode(z_list[i], draw_mode=False), [0, i]])
stroke_grid = make_grid_svg(reconstructions)
draw_strokes(stroke_grid)
model_dir = '/tmp/sketch_rnn/models/flamingo/lstm_uncond'
[hps_model, eval_hps_model, sample_hps_model] = load_model_compatible(model_dir)
reset_graph()
model = Model(hps_model)
eval_model = Model(eval_hps_model, reuse=True)
sample_model = Model(sample_hps_model, reuse=True)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
load_checkpoint(sess, model_dir)
N = 10
reconstructions = []
for i in range(N):
reconstructions.append([decode(temperature=0.5, draw_mode=False), [0, i]])
stroke_grid = make_grid_svg(reconstructions)
draw_strokes(stroke_grid)
model_dir = '/tmp/sketch_rnn/models/owl/lstm'
[hps_model, eval_hps_model, sample_hps_model] = load_model_compatible(model_dir)
reset_graph()
model = Model(hps_model)
eval_model = Model(eval_hps_model, reuse=True)
sample_model = Model(sample_hps_model, reuse=True)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
load_checkpoint(sess, model_dir)
z_0 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_0)
z_1 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_1)
z_list = []
N = 10
for t in np.linspace(0, 1, N):
z_list.append(slerp(z_0, z_1, t))
reconstructions = []
for i in range(N):
reconstructions.append([decode(z_list[i], draw_mode=False, temperature=0.1), [0, i]])
stroke_grid = make_grid_svg(reconstructions)
draw_strokes(stroke_grid)
= '/tmp/sketch_rnn/models/catbus/lstm'
[hps_model, eval_hps_model, sample_hps_model] = load_model_compatible(model_dir)
reset_graph()
model = Model(hps_model)
eval_model = Model(eval_hps_model, reuse=True)
sample_model = Model(sample_hps_model, reuse=True)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
load_checkpoint(sess, model_dir)
z_1 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_1)
z_0 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_0)
z_list = []
N = 10
for t in np.linspace(0, 1, N):
z_list.append(slerp(z_1, z_0, t))
reconstructions = []
for i in range(N):
reconstructions.append([decode(z_list[i], draw_mode=False, temperature=0.15), [0, i]])
stroke_grid = make_grid_svg(reconstructions)
draw_strokes(stroke_grid)
model_dir = '/tmp/sketch_rnn/models/elephantpig/lstm'
[hps_model, eval_hps_model, sample_hps_model] = load_model_compatible(model_dir)
reset_graph()
model = Model(hps_model)
eval_model = Model(eval_hps_model, reuse=True)
sample_model = Model(sample_hps_model, reuse=True)
sess = tf.InteractiveSession()
sess.run(tf.global_variables_initializer())
load_checkpoint(sess, model_dir)
z_0 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_0)
z_1 = np.random.randn(eval_model.hps.z_size)
_ = decode(z_1)
z_list = []
N = 10
for t in np.linspace(0, 1, N):
z_list.append(slerp(z_0, z_1, t))
reconstructions = []
for i in range(N):
reconstructions.append([decode(z_list[i], draw_mode=False, temperature=0.15), [0, i]])
stroke_grid = make_grid_svg(reconstructions, grid_space_x=25.0)
draw_strokes(stroke_grid, factor=0.3)