Spaces:
Running
on
Zero
Running
on
Zero
support flux
#1
by
linoyts
HF staff
- opened
- app.py +0 -0
- clip_slider_pipeline.py +171 -75
app.py
CHANGED
The diff for this file is too large to render.
See raw diff
|
|
clip_slider_pipeline.py
CHANGED
@@ -4,26 +4,23 @@ import random
|
|
4 |
from tqdm import tqdm
|
5 |
from constants import SUBJECTS, MEDIUMS
|
6 |
from PIL import Image
|
7 |
-
|
8 |
class CLIPSlider:
|
9 |
def __init__(
|
10 |
self,
|
11 |
sd_pipe,
|
12 |
device: torch.device,
|
13 |
-
target_word: str
|
14 |
-
opposite: str
|
15 |
target_word_2nd: str = "",
|
16 |
opposite_2nd: str = "",
|
17 |
iterations: int = 300,
|
18 |
):
|
19 |
|
20 |
self.device = device
|
21 |
-
self.pipe = sd_pipe.to(self.device
|
22 |
self.iterations = iterations
|
23 |
-
|
24 |
-
self.avg_diff = self.find_latent_direction(target_word, opposite)
|
25 |
-
else:
|
26 |
-
self.avg_diff = None
|
27 |
if target_word_2nd != "" or opposite_2nd != "":
|
28 |
self.avg_diff_2nd = self.find_latent_direction(target_word_2nd, opposite_2nd)
|
29 |
else:
|
@@ -32,21 +29,17 @@ class CLIPSlider:
|
|
32 |
|
33 |
def find_latent_direction(self,
|
34 |
target_word:str,
|
35 |
-
opposite:str
|
36 |
-
num_iterations: int = None):
|
37 |
|
38 |
# lets identify a latent direction by taking differences between opposites
|
39 |
# target_word = "happy"
|
40 |
# opposite = "sad"
|
41 |
|
42 |
-
|
43 |
-
iterations = num_iterations
|
44 |
-
else:
|
45 |
-
iterations = self.iterations
|
46 |
with torch.no_grad():
|
47 |
positives = []
|
48 |
negatives = []
|
49 |
-
for i in tqdm(range(iterations)):
|
50 |
medium = random.choice(MEDIUMS)
|
51 |
subject = random.choice(SUBJECTS)
|
52 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
@@ -77,8 +70,6 @@ class CLIPSlider:
|
|
77 |
only_pooler = False,
|
78 |
normalize_scales = False, # whether to normalize the scales when avg_diff_2nd is not None
|
79 |
correlation_weight_factor = 1.0,
|
80 |
-
avg_diff = None,
|
81 |
-
avg_diff_2nd = None,
|
82 |
**pipeline_kwargs
|
83 |
):
|
84 |
# if doing full sequence, [-0.3,0.3] work well, higher if correlation weighted is true
|
@@ -89,14 +80,14 @@ class CLIPSlider:
|
|
89 |
max_length=self.pipe.tokenizer.model_max_length).input_ids.cuda()
|
90 |
prompt_embeds = self.pipe.text_encoder(toks).last_hidden_state
|
91 |
|
92 |
-
if avg_diff_2nd and normalize_scales:
|
93 |
denominator = abs(scale) + abs(scale_2nd)
|
94 |
scale = scale / denominator
|
95 |
scale_2nd = scale_2nd / denominator
|
96 |
if only_pooler:
|
97 |
-
prompt_embeds[:, toks.argmax()] = prompt_embeds[:, toks.argmax()] + avg_diff * scale
|
98 |
-
if avg_diff_2nd:
|
99 |
-
prompt_embeds[:, toks.argmax()] += avg_diff_2nd * scale_2nd
|
100 |
else:
|
101 |
normed_prompt_embeds = prompt_embeds / prompt_embeds.norm(dim=-1, keepdim=True)
|
102 |
sims = normed_prompt_embeds[0] @ normed_prompt_embeds[0].T
|
@@ -108,15 +99,15 @@ class CLIPSlider:
|
|
108 |
|
109 |
# weights = torch.sigmoid((weights-0.5)*7)
|
110 |
prompt_embeds = prompt_embeds + (
|
111 |
-
weights * avg_diff[None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale)
|
112 |
-
if avg_diff_2nd:
|
113 |
-
prompt_embeds += weights * avg_diff_2nd[None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale_2nd
|
114 |
|
115 |
|
116 |
torch.manual_seed(seed)
|
117 |
-
|
118 |
|
119 |
-
return
|
120 |
|
121 |
def spectrum(self,
|
122 |
prompt="a photo of a house",
|
@@ -149,23 +140,19 @@ class CLIPSliderXL(CLIPSlider):
|
|
149 |
|
150 |
def find_latent_direction(self,
|
151 |
target_word:str,
|
152 |
-
opposite:str
|
153 |
-
num_iterations: int = None):
|
154 |
|
155 |
# lets identify a latent direction by taking differences between opposites
|
156 |
# target_word = "happy"
|
157 |
# opposite = "sad"
|
158 |
-
|
159 |
-
iterations = num_iterations
|
160 |
-
else:
|
161 |
-
iterations = self.iterations
|
162 |
|
163 |
with torch.no_grad():
|
164 |
positives = []
|
165 |
negatives = []
|
166 |
positives2 = []
|
167 |
negatives2 = []
|
168 |
-
for i in tqdm(range(iterations)):
|
169 |
medium = random.choice(MEDIUMS)
|
170 |
subject = random.choice(SUBJECTS)
|
171 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
@@ -208,13 +195,11 @@ class CLIPSliderXL(CLIPSlider):
|
|
208 |
only_pooler = False,
|
209 |
normalize_scales = False,
|
210 |
correlation_weight_factor = 1.0,
|
211 |
-
avg_diff = None,
|
212 |
-
avg_diff_2nd = None,
|
213 |
**pipeline_kwargs
|
214 |
):
|
215 |
# if doing full sequence, [-0.3,0.3] work well, higher if correlation weighted is true
|
216 |
# if pooler token only [-4,4] work well
|
217 |
-
|
218 |
text_encoders = [self.pipe.text_encoder, self.pipe.text_encoder_2]
|
219 |
tokenizers = [self.pipe.tokenizer, self.pipe.tokenizer_2]
|
220 |
with torch.no_grad():
|
@@ -239,21 +224,20 @@ class CLIPSliderXL(CLIPSlider):
|
|
239 |
toks.to(text_encoder.device),
|
240 |
output_hidden_states=True,
|
241 |
)
|
242 |
-
|
243 |
# We are only ALWAYS interested in the pooled output of the final text encoder
|
244 |
-
pooled_prompt_embeds = prompt_embeds[0]
|
245 |
prompt_embeds = prompt_embeds.hidden_states[-2]
|
246 |
-
|
247 |
-
if avg_diff_2nd and normalize_scales:
|
248 |
denominator = abs(scale) + abs(scale_2nd)
|
249 |
scale = scale / denominator
|
250 |
scale_2nd = scale_2nd / denominator
|
251 |
if only_pooler:
|
252 |
-
prompt_embeds[:, toks.argmax()] = prompt_embeds[:, toks.argmax()] + avg_diff[0] * scale
|
253 |
-
if avg_diff_2nd:
|
254 |
-
prompt_embeds[:, toks.argmax()] += avg_diff_2nd[0] * scale_2nd
|
255 |
else:
|
256 |
-
|
257 |
normed_prompt_embeds = prompt_embeds / prompt_embeds.norm(dim=-1, keepdim=True)
|
258 |
sims = normed_prompt_embeds[0] @ normed_prompt_embeds[0].T
|
259 |
|
@@ -263,58 +247,49 @@ class CLIPSliderXL(CLIPSlider):
|
|
263 |
standard_weights = torch.ones_like(weights)
|
264 |
|
265 |
weights = standard_weights + (weights - standard_weights) * correlation_weight_factor
|
266 |
-
prompt_embeds = prompt_embeds + (weights * avg_diff[0][None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale)
|
267 |
-
if avg_diff_2nd:
|
268 |
-
prompt_embeds += (weights * avg_diff_2nd[0][None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale_2nd)
|
269 |
else:
|
270 |
weights = sims[toks.argmax(), :][None, :, None].repeat(1, 1, 1280)
|
271 |
|
272 |
standard_weights = torch.ones_like(weights)
|
273 |
|
274 |
weights = standard_weights + (weights - standard_weights) * correlation_weight_factor
|
275 |
-
prompt_embeds = prompt_embeds + (weights * avg_diff[1][None, :].repeat(1, self.pipe.tokenizer_2.model_max_length, 1) * scale)
|
276 |
-
if avg_diff_2nd:
|
277 |
-
prompt_embeds += (weights * avg_diff_2nd[1][None, :].repeat(1, self.pipe.tokenizer_2.model_max_length, 1) * scale_2nd)
|
278 |
|
279 |
bs_embed, seq_len, _ = prompt_embeds.shape
|
280 |
prompt_embeds = prompt_embeds.view(bs_embed, seq_len, -1)
|
281 |
prompt_embeds_list.append(prompt_embeds)
|
282 |
|
283 |
-
prompt_embeds = torch.concat(prompt_embeds_list, dim=-1)
|
284 |
-
pooled_prompt_embeds = pooled_prompt_embeds.view(bs_embed, -1)
|
285 |
-
|
286 |
-
print("prompt_embeds", prompt_embeds.dtype)
|
287 |
-
print(f"generation time - before pipe: {end_time - start_time:.2f} ms")
|
288 |
torch.manual_seed(seed)
|
289 |
-
|
290 |
-
|
291 |
-
**pipeline_kwargs).images[0]
|
292 |
-
end_time = time.time()
|
293 |
-
print(f"generation time - pipe: {end_time - start_time:.2f} ms")
|
294 |
|
295 |
-
return
|
296 |
|
297 |
class CLIPSliderXL_inv(CLIPSlider):
|
298 |
|
299 |
def find_latent_direction(self,
|
300 |
target_word:str,
|
301 |
-
opposite:str
|
302 |
-
num_iterations: int = None):
|
303 |
|
304 |
# lets identify a latent direction by taking differences between opposites
|
305 |
# target_word = "happy"
|
306 |
# opposite = "sad"
|
307 |
-
|
308 |
-
iterations = num_iterations
|
309 |
-
else:
|
310 |
-
iterations = self.iterations
|
311 |
|
312 |
with torch.no_grad():
|
313 |
positives = []
|
314 |
negatives = []
|
315 |
positives2 = []
|
316 |
negatives2 = []
|
317 |
-
for i in tqdm(range(iterations)):
|
318 |
medium = random.choice(MEDIUMS)
|
319 |
subject = random.choice(SUBJECTS)
|
320 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
@@ -357,18 +332,139 @@ class CLIPSliderXL_inv(CLIPSlider):
|
|
357 |
only_pooler = False,
|
358 |
normalize_scales = False,
|
359 |
correlation_weight_factor = 1.0,
|
360 |
-
avg_diff=None,
|
361 |
-
avg_diff_2nd=None,
|
362 |
-
init_latents=None,
|
363 |
-
zs=None,
|
364 |
**pipeline_kwargs
|
365 |
):
|
366 |
|
367 |
with torch.no_grad():
|
368 |
torch.manual_seed(seed)
|
369 |
-
images = self.pipe(editing_prompt=prompt,
|
370 |
-
avg_diff=avg_diff
|
371 |
-
scale=scale,
|
372 |
**pipeline_kwargs).images
|
373 |
|
374 |
return images
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4 |
from tqdm import tqdm
|
5 |
from constants import SUBJECTS, MEDIUMS
|
6 |
from PIL import Image
|
7 |
+
|
8 |
class CLIPSlider:
|
9 |
def __init__(
|
10 |
self,
|
11 |
sd_pipe,
|
12 |
device: torch.device,
|
13 |
+
target_word: str,
|
14 |
+
opposite: str,
|
15 |
target_word_2nd: str = "",
|
16 |
opposite_2nd: str = "",
|
17 |
iterations: int = 300,
|
18 |
):
|
19 |
|
20 |
self.device = device
|
21 |
+
self.pipe = sd_pipe.to(self.device)
|
22 |
self.iterations = iterations
|
23 |
+
self.avg_diff = self.find_latent_direction(target_word, opposite)
|
|
|
|
|
|
|
24 |
if target_word_2nd != "" or opposite_2nd != "":
|
25 |
self.avg_diff_2nd = self.find_latent_direction(target_word_2nd, opposite_2nd)
|
26 |
else:
|
|
|
29 |
|
30 |
def find_latent_direction(self,
|
31 |
target_word:str,
|
32 |
+
opposite:str):
|
|
|
33 |
|
34 |
# lets identify a latent direction by taking differences between opposites
|
35 |
# target_word = "happy"
|
36 |
# opposite = "sad"
|
37 |
|
38 |
+
|
|
|
|
|
|
|
39 |
with torch.no_grad():
|
40 |
positives = []
|
41 |
negatives = []
|
42 |
+
for i in tqdm(range(self.iterations)):
|
43 |
medium = random.choice(MEDIUMS)
|
44 |
subject = random.choice(SUBJECTS)
|
45 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
|
|
70 |
only_pooler = False,
|
71 |
normalize_scales = False, # whether to normalize the scales when avg_diff_2nd is not None
|
72 |
correlation_weight_factor = 1.0,
|
|
|
|
|
73 |
**pipeline_kwargs
|
74 |
):
|
75 |
# if doing full sequence, [-0.3,0.3] work well, higher if correlation weighted is true
|
|
|
80 |
max_length=self.pipe.tokenizer.model_max_length).input_ids.cuda()
|
81 |
prompt_embeds = self.pipe.text_encoder(toks).last_hidden_state
|
82 |
|
83 |
+
if self.avg_diff_2nd and normalize_scales:
|
84 |
denominator = abs(scale) + abs(scale_2nd)
|
85 |
scale = scale / denominator
|
86 |
scale_2nd = scale_2nd / denominator
|
87 |
if only_pooler:
|
88 |
+
prompt_embeds[:, toks.argmax()] = prompt_embeds[:, toks.argmax()] + self.avg_diff * scale
|
89 |
+
if self.avg_diff_2nd:
|
90 |
+
prompt_embeds[:, toks.argmax()] += self.avg_diff_2nd * scale_2nd
|
91 |
else:
|
92 |
normed_prompt_embeds = prompt_embeds / prompt_embeds.norm(dim=-1, keepdim=True)
|
93 |
sims = normed_prompt_embeds[0] @ normed_prompt_embeds[0].T
|
|
|
99 |
|
100 |
# weights = torch.sigmoid((weights-0.5)*7)
|
101 |
prompt_embeds = prompt_embeds + (
|
102 |
+
weights * self.avg_diff[None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale)
|
103 |
+
if self.avg_diff_2nd:
|
104 |
+
prompt_embeds += weights * self.avg_diff_2nd[None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale_2nd
|
105 |
|
106 |
|
107 |
torch.manual_seed(seed)
|
108 |
+
images = self.pipe(prompt_embeds=prompt_embeds, **pipeline_kwargs).images
|
109 |
|
110 |
+
return images
|
111 |
|
112 |
def spectrum(self,
|
113 |
prompt="a photo of a house",
|
|
|
140 |
|
141 |
def find_latent_direction(self,
|
142 |
target_word:str,
|
143 |
+
opposite:str):
|
|
|
144 |
|
145 |
# lets identify a latent direction by taking differences between opposites
|
146 |
# target_word = "happy"
|
147 |
# opposite = "sad"
|
148 |
+
|
|
|
|
|
|
|
149 |
|
150 |
with torch.no_grad():
|
151 |
positives = []
|
152 |
negatives = []
|
153 |
positives2 = []
|
154 |
negatives2 = []
|
155 |
+
for i in tqdm(range(self.iterations)):
|
156 |
medium = random.choice(MEDIUMS)
|
157 |
subject = random.choice(SUBJECTS)
|
158 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
|
|
195 |
only_pooler = False,
|
196 |
normalize_scales = False,
|
197 |
correlation_weight_factor = 1.0,
|
|
|
|
|
198 |
**pipeline_kwargs
|
199 |
):
|
200 |
# if doing full sequence, [-0.3,0.3] work well, higher if correlation weighted is true
|
201 |
# if pooler token only [-4,4] work well
|
202 |
+
|
203 |
text_encoders = [self.pipe.text_encoder, self.pipe.text_encoder_2]
|
204 |
tokenizers = [self.pipe.tokenizer, self.pipe.tokenizer_2]
|
205 |
with torch.no_grad():
|
|
|
224 |
toks.to(text_encoder.device),
|
225 |
output_hidden_states=True,
|
226 |
)
|
227 |
+
|
228 |
# We are only ALWAYS interested in the pooled output of the final text encoder
|
229 |
+
pooled_prompt_embeds = prompt_embeds[0]
|
230 |
prompt_embeds = prompt_embeds.hidden_states[-2]
|
231 |
+
|
232 |
+
if self.avg_diff_2nd and normalize_scales:
|
233 |
denominator = abs(scale) + abs(scale_2nd)
|
234 |
scale = scale / denominator
|
235 |
scale_2nd = scale_2nd / denominator
|
236 |
if only_pooler:
|
237 |
+
prompt_embeds[:, toks.argmax()] = prompt_embeds[:, toks.argmax()] + self.avg_diff[0] * scale
|
238 |
+
if self.avg_diff_2nd:
|
239 |
+
prompt_embeds[:, toks.argmax()] += self.avg_diff_2nd[0] * scale_2nd
|
240 |
else:
|
|
|
241 |
normed_prompt_embeds = prompt_embeds / prompt_embeds.norm(dim=-1, keepdim=True)
|
242 |
sims = normed_prompt_embeds[0] @ normed_prompt_embeds[0].T
|
243 |
|
|
|
247 |
standard_weights = torch.ones_like(weights)
|
248 |
|
249 |
weights = standard_weights + (weights - standard_weights) * correlation_weight_factor
|
250 |
+
prompt_embeds = prompt_embeds + (weights * self.avg_diff[0][None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale)
|
251 |
+
if self.avg_diff_2nd:
|
252 |
+
prompt_embeds += (weights * self.avg_diff_2nd[0][None, :].repeat(1, self.pipe.tokenizer.model_max_length, 1) * scale_2nd)
|
253 |
else:
|
254 |
weights = sims[toks.argmax(), :][None, :, None].repeat(1, 1, 1280)
|
255 |
|
256 |
standard_weights = torch.ones_like(weights)
|
257 |
|
258 |
weights = standard_weights + (weights - standard_weights) * correlation_weight_factor
|
259 |
+
prompt_embeds = prompt_embeds + (weights * self.avg_diff[1][None, :].repeat(1, self.pipe.tokenizer_2.model_max_length, 1) * scale)
|
260 |
+
if self.avg_diff_2nd:
|
261 |
+
prompt_embeds += (weights * self.avg_diff_2nd[1][None, :].repeat(1, self.pipe.tokenizer_2.model_max_length, 1) * scale_2nd)
|
262 |
|
263 |
bs_embed, seq_len, _ = prompt_embeds.shape
|
264 |
prompt_embeds = prompt_embeds.view(bs_embed, seq_len, -1)
|
265 |
prompt_embeds_list.append(prompt_embeds)
|
266 |
|
267 |
+
prompt_embeds = torch.concat(prompt_embeds_list, dim=-1)
|
268 |
+
pooled_prompt_embeds = pooled_prompt_embeds.view(bs_embed, -1)
|
269 |
+
|
|
|
|
|
270 |
torch.manual_seed(seed)
|
271 |
+
images = self.pipe(prompt_embeds=prompt_embeds, pooled_prompt_embeds=pooled_prompt_embeds,
|
272 |
+
**pipeline_kwargs).images
|
|
|
|
|
|
|
273 |
|
274 |
+
return images
|
275 |
|
276 |
class CLIPSliderXL_inv(CLIPSlider):
|
277 |
|
278 |
def find_latent_direction(self,
|
279 |
target_word:str,
|
280 |
+
opposite:str):
|
|
|
281 |
|
282 |
# lets identify a latent direction by taking differences between opposites
|
283 |
# target_word = "happy"
|
284 |
# opposite = "sad"
|
285 |
+
|
|
|
|
|
|
|
286 |
|
287 |
with torch.no_grad():
|
288 |
positives = []
|
289 |
negatives = []
|
290 |
positives2 = []
|
291 |
negatives2 = []
|
292 |
+
for i in tqdm(range(self.iterations)):
|
293 |
medium = random.choice(MEDIUMS)
|
294 |
subject = random.choice(SUBJECTS)
|
295 |
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
|
|
332 |
only_pooler = False,
|
333 |
normalize_scales = False,
|
334 |
correlation_weight_factor = 1.0,
|
|
|
|
|
|
|
|
|
335 |
**pipeline_kwargs
|
336 |
):
|
337 |
|
338 |
with torch.no_grad():
|
339 |
torch.manual_seed(seed)
|
340 |
+
images = self.pipe(editing_prompt=prompt,
|
341 |
+
avg_diff=self.avg_diff, avg_diff_2nd=self.avg_diff_2nd,
|
342 |
+
scale=scale, scale_2nd=scale_2nd,
|
343 |
**pipeline_kwargs).images
|
344 |
|
345 |
return images
|
346 |
+
|
347 |
+
|
348 |
+
class T5SliderFlux(CLIPSlider):
|
349 |
+
|
350 |
+
def find_latent_direction(self,
|
351 |
+
target_word:str,
|
352 |
+
opposite:str):
|
353 |
+
|
354 |
+
# lets identify a latent direction by taking differences between opposites
|
355 |
+
# target_word = "happy"
|
356 |
+
# opposite = "sad"
|
357 |
+
|
358 |
+
|
359 |
+
with torch.no_grad():
|
360 |
+
positives = []
|
361 |
+
negatives = []
|
362 |
+
for i in tqdm(range(self.iterations)):
|
363 |
+
medium = random.choice(MEDIUMS)
|
364 |
+
subject = random.choice(SUBJECTS)
|
365 |
+
pos_prompt = f"a {medium} of a {target_word} {subject}"
|
366 |
+
neg_prompt = f"a {medium} of a {opposite} {subject}"
|
367 |
+
|
368 |
+
pos_toks = self.pipe.tokenizer_2(pos_prompt,
|
369 |
+
return_tensors="pt",
|
370 |
+
padding="max_length",
|
371 |
+
truncation=True,
|
372 |
+
return_length=False,
|
373 |
+
return_overflowing_tokens=False,
|
374 |
+
max_length=self.pipe.tokenizer_2.model_max_length).input_ids.cuda()
|
375 |
+
neg_toks = self.pipe.tokenizer_2(neg_prompt,
|
376 |
+
return_tensors="pt",
|
377 |
+
padding="max_length",
|
378 |
+
truncation=True,
|
379 |
+
return_length=False,
|
380 |
+
return_overflowing_tokens=False,
|
381 |
+
max_length=self.pipe.tokenizer_2.model_max_length).input_ids.cuda()
|
382 |
+
pos = self.pipe.text_encoder_2(pos_toks, output_hidden_states=False)[0]
|
383 |
+
neg = self.pipe.text_encoder_2(neg_toks, output_hidden_states=False)[0]
|
384 |
+
positives.append(pos)
|
385 |
+
negatives.append(neg)
|
386 |
+
|
387 |
+
positives = torch.cat(positives, dim=0)
|
388 |
+
negatives = torch.cat(negatives, dim=0)
|
389 |
+
diffs = positives - negatives
|
390 |
+
avg_diff = diffs.mean(0, keepdim=True)
|
391 |
+
|
392 |
+
return avg_diff
|
393 |
+
|
394 |
+
def generate(self,
|
395 |
+
prompt = "a photo of a house",
|
396 |
+
scale = 2,
|
397 |
+
scale_2nd = 2,
|
398 |
+
seed = 15,
|
399 |
+
only_pooler = False,
|
400 |
+
normalize_scales = False,
|
401 |
+
correlation_weight_factor = 1.0,
|
402 |
+
**pipeline_kwargs
|
403 |
+
):
|
404 |
+
# if doing full sequence, [-0.3,0.3] work well, higher if correlation weighted is true
|
405 |
+
# if pooler token only [-4,4] work well
|
406 |
+
|
407 |
+
with torch.no_grad():
|
408 |
+
text_inputs = self.pipe.tokenizer(
|
409 |
+
prompt,
|
410 |
+
padding="max_length",
|
411 |
+
max_length=77,
|
412 |
+
truncation=True,
|
413 |
+
return_overflowing_tokens=False,
|
414 |
+
return_length=False,
|
415 |
+
return_tensors="pt",
|
416 |
+
)
|
417 |
+
|
418 |
+
text_input_ids = text_inputs.input_ids
|
419 |
+
prompt_embeds = self.pipe.text_encoder(text_input_ids.to(self.device), output_hidden_states=False)
|
420 |
+
|
421 |
+
# Use pooled output of CLIPTextModel
|
422 |
+
prompt_embeds = prompt_embeds.pooler_output
|
423 |
+
pooled_prompt_embeds = prompt_embeds.to(dtype=self.pipe.text_encoder.dtype, device=self.device)
|
424 |
+
|
425 |
+
# Use pooled output of CLIPTextModel
|
426 |
+
|
427 |
+
text_inputs = self.pipe.tokenizer_2(
|
428 |
+
prompt,
|
429 |
+
padding="max_length",
|
430 |
+
max_length=512,
|
431 |
+
truncation=True,
|
432 |
+
return_length=False,
|
433 |
+
return_overflowing_tokens=False,
|
434 |
+
return_tensors="pt",
|
435 |
+
)
|
436 |
+
toks = text_inputs.input_ids
|
437 |
+
prompt_embeds = self.pipe.text_encoder_2(toks.to(self.device), output_hidden_states=False)[0]
|
438 |
+
dtype = self.pipe.text_encoder_2.dtype
|
439 |
+
prompt_embeds = prompt_embeds.to(dtype=dtype, device=self.device)
|
440 |
+
print("1", prompt_embeds.shape)
|
441 |
+
if self.avg_diff_2nd and normalize_scales:
|
442 |
+
denominator = abs(scale) + abs(scale_2nd)
|
443 |
+
scale = scale / denominator
|
444 |
+
scale_2nd = scale_2nd / denominator
|
445 |
+
if only_pooler:
|
446 |
+
prompt_embeds[:, toks.argmax()] = prompt_embeds[:, toks.argmax()] + self.avg_diff * scale
|
447 |
+
if self.avg_diff_2nd:
|
448 |
+
prompt_embeds[:, toks.argmax()] += self.avg_diff_2nd * scale_2nd
|
449 |
+
else:
|
450 |
+
normed_prompt_embeds = prompt_embeds / prompt_embeds.norm(dim=-1, keepdim=True)
|
451 |
+
sims = normed_prompt_embeds[0] @ normed_prompt_embeds[0].T
|
452 |
+
|
453 |
+
weights = sims[toks.argmax(), :][None, :, None].repeat(1, 1, prompt_embeds.shape[2])
|
454 |
+
print("weights", weights.shape)
|
455 |
+
|
456 |
+
standard_weights = torch.ones_like(weights)
|
457 |
+
|
458 |
+
weights = standard_weights + (weights - standard_weights) * correlation_weight_factor
|
459 |
+
prompt_embeds = prompt_embeds + (
|
460 |
+
weights * self.avg_diff * scale)
|
461 |
+
print("2", prompt_embeds.shape)
|
462 |
+
if self.avg_diff_2nd:
|
463 |
+
prompt_embeds += (
|
464 |
+
weights * self.avg_diff_2nd * scale_2nd)
|
465 |
+
|
466 |
+
torch.manual_seed(seed)
|
467 |
+
images = self.pipe(prompt_embeds=prompt_embeds, pooled_prompt_embeds=pooled_prompt_embeds,
|
468 |
+
**pipeline_kwargs).images
|
469 |
+
|
470 |
+
return images
|