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Cherry Picking Drake53's Negative Prompt Support Commit #135

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Cherry Picking Drake53's Negative Prompt Support Commit #135

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17 changes: 10 additions & 7 deletions demo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,13 +39,14 @@ def main(args):
device=args.device
)
image = engine(
prompt=args.prompt,
init_image=None if args.init_image is None else cv2.imread(args.init_image),
mask=None if args.mask is None else cv2.imread(args.mask, 0),
strength=args.strength,
num_inference_steps=args.num_inference_steps,
guidance_scale=args.guidance_scale,
eta=args.eta
prompt = args.prompt,
init_image = None if args.init_image is None else cv2.imread(args.init_image),
mask = None if args.mask is None else cv2.imread(args.mask, 0),
strength = args.strength,
num_inference_steps = args.num_inference_steps,
guidance_scale = args.guidance_scale,
eta = args.eta,
unprompt = args.unprompt
)
cv2.imwrite(args.output, image)

Expand Down Expand Up @@ -79,5 +80,7 @@ def main(args):
parser.add_argument("--mask", type=str, default=None, help="mask of the region to inpaint on the initial image")
# output name
parser.add_argument("--output", type=str, default="output.png", help="output image name")
# unprompt
parser.add_argument("--unprompt", type=str, default="", help="negative prompt")
args = parser.parse_args()
main(args)
5 changes: 3 additions & 2 deletions stable_diffusion_engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,8 @@ def __call__(
strength = 0.5,
num_inference_steps = 32,
guidance_scale = 7.5,
eta = 0.0
eta = 0.0,
unprompt = ""
):
# extract condition
tokens = self.tokenizer(
Expand All @@ -122,7 +123,7 @@ def __call__(
# do classifier free guidance
if guidance_scale > 1.0:
tokens_uncond = self.tokenizer(
"",
unprompt,
padding="max_length",
max_length=self.tokenizer.model_max_length,
truncation=True
Expand Down