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import cv2
import einops
import gradio as gr
import numpy as np
import torch
from pytorch_lightning import seed_everything
from util import resize_image, HWC3, apply_canny
from ldm.models.diffusion.ddim import DDIMSampler
from annotator.openpose import apply_openpose
from cldm.model import create_model, load_state_dict
from huggingface_hub import hf_hub_url, cached_download
REPO_ID = "lllyasviel/ControlNet"
canny_checkpoint = "models/control_sd15_canny.pth"
scribble_checkpoint = "models/control_sd15_scribble.pth"
pose_checkpoint = "models/control_sd15_openpose.pth"
canny_model = create_model('./models/cldm_v15.yaml').cpu()
canny_model.load_state_dict(load_state_dict(cached_download(
hf_hub_url(REPO_ID, canny_checkpoint)
), location='cuda'))
canny_model = canny_model.cuda()
ddim_sampler = DDIMSampler(canny_model)
pose_model = create_model('./models/cldm_v15.yaml').cpu()
pose_model.load_state_dict(load_state_dict(cached_download(
hf_hub_url(REPO_ID, pose_checkpoint)
), location='cuda'))
pose_model = pose_model.cuda()
ddim_sampler_pose = DDIMSampler(pose_model)
scribble_model = create_model('./models/cldm_v15.yaml')
scribble_model.load_state_dict(load_state_dict(cached_download(
hf_hub_url(REPO_ID, scribble_checkpoint)
), location='cpu'))
scribble_model = canny_model.cuda()
ddim_sampler_scribble = DDIMSampler(scribble_model)
def process(input_image, prompt, input_control, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta, low_threshold, high_threshold):
# TODO: Add other control tasks
if input_control == "Scribble":
return process_scribble(input_image, prompt, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta)
return process_canny(input_image, prompt, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta, low_threshold, high_threshold)
def process_canny(input_image, prompt, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta, low_threshold, high_threshold):
with torch.no_grad():
img = resize_image(HWC3(input_image), image_resolution)
H, W, C = img.shape
detected_map = apply_canny(img, low_threshold, high_threshold)
detected_map = HWC3(detected_map)
control = torch.from_numpy(detected_map.copy()).float().cuda() / 255.0
control = torch.stack([control for _ in range(num_samples)], dim=0)
control = einops.rearrange(control, 'b h w c -> b c h w').clone()
seed_everything(seed)
cond = {"c_concat": [control], "c_crossattn": [canny_model.get_learned_conditioning([prompt + ', ' + a_prompt] * num_samples)]}
un_cond = {"c_concat": [control], "c_crossattn": [canny_model.get_learned_conditioning([n_prompt] * num_samples)]}
shape = (4, H // 8, W // 8)
samples, intermediates = ddim_sampler.sample(ddim_steps, num_samples,
shape, cond, verbose=False, eta=eta,
unconditional_guidance_scale=scale,
unconditional_conditioning=un_cond)
x_samples = canny_model.decode_first_stage(samples)
x_samples = (einops.rearrange(x_samples, 'b c h w -> b h w c') * 127.5 + 127.5).cpu().numpy().clip(0, 255).astype(np.uint8)
results = [x_samples[i] for i in range(num_samples)]
return [255 - detected_map] + results
def process_scribble(input_image, prompt, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta):
with torch.no_grad():
img = resize_image(HWC3(input_image), image_resolution)
H, W, C = img.shape
detected_map = np.zeros_like(img, dtype=np.uint8)
detected_map[np.min(img, axis=2) < 127] = 255
control = torch.from_numpy(detected_map.copy()).float().cuda() / 255.0
control = torch.stack([control for _ in range(num_samples)], dim=0)
control = einops.rearrange(control, 'b h w c -> b c h w').clone()
seed_everything(seed)
cond = {"c_concat": [control], "c_crossattn": [scribble_model.get_learned_conditioning([prompt + ', ' + a_prompt] * num_samples)]}
un_cond = {"c_concat": [control], "c_crossattn": [scribble_model.get_learned_conditioning([n_prompt] * num_samples)]}
shape = (4, H // 8, W // 8)
samples, intermediates = ddim_sampler_scribble.sample(ddim_steps, num_samples,
shape, cond, verbose=False, eta=eta,
unconditional_guidance_scale=scale,
unconditional_conditioning=un_cond)
x_samples = scribble_model.decode_first_stage(samples)
x_samples = (einops.rearrange(x_samples, 'b c h w -> b h w c') * 127.5 + 127.5).cpu().numpy().clip(0, 255).astype(np.uint8)
results = [x_samples[i] for i in range(num_samples)]
return [255 - detected_map] + results
def create_canvas(w, h):
new_control_options = ["Interactive Scribble"]
return np.zeros(shape=(h, w, 3), dtype=np.uint8) + 255
block = gr.Blocks().queue()
control_task_list = [
"Canny Edge Map",
"Scribble"
]
with block:
gr.Markdown("## Adding Conditional Control to Text-to-Image Diffusion Models")
gr.HTML('''
<p style="margin-bottom: 10px; font-size: 94%">
This is an unofficial demo for ControlNet, which is a neural network structure to control diffusion models by adding extra conditions such as canny edge detection. The demo is based on the <a href="https://github.com/lllyasviel/ControlNet" style="text-decoration: underline;" target="_blank"> Github </a> implementation.
</p>
''')
gr.HTML("<p>You can duplicate this Space to run it privately without a queue and load additional checkpoints. : <a style='display:inline-block' href='https://huggingface.co/spaces/RamAnanth1/ControlNet?duplicate=true'><img src='https://img.shields.io/badge/-Duplicate%20Space-blue?labelColor=white&style=flat&logo=data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAP5JREFUOE+lk7FqAkEURY+ltunEgFXS2sZGIbXfEPdLlnxJyDdYB62sbbUKpLbVNhyYFzbrrA74YJlh9r079973psed0cvUD4A+4HoCjsA85X0Dfn/RBLBgBDxnQPfAEJgBY+A9gALA4tcbamSzS4xq4FOQAJgCDwV2CPKV8tZAJcAjMMkUe1vX+U+SMhfAJEHasQIWmXNN3abzDwHUrgcRGmYcgKe0bxrblHEB4E/pndMazNpSZGcsZdBlYJcEL9Afo75molJyM2FxmPgmgPqlWNLGfwZGG6UiyEvLzHYDmoPkDDiNm9JR9uboiONcBXrpY1qmgs21x1QwyZcpvxt9NS09PlsPAAAAAElFTkSuQmCC&logoWidth=14' alt='Duplicate Space'></a> <a style='display:inline-block' href='https://colab.research.google.com/github/camenduru/controlnet-colab/blob/main/controlnet-colab.ipynb'><img src = 'https://colab.research.google.com/assets/colab-badge.svg' alt='Open in Colab'></a></p>")
with gr.Row():
with gr.Column():
input_image = gr.Image(source='upload', type="numpy")
input_control = gr.Dropdown(control_task_list, value="Scribble", label="Control Task")
prompt = gr.Textbox(label="Prompt")
run_button = gr.Button(label="Run")
with gr.Accordion("Advanced options", open=False):
num_samples = gr.Slider(label="Images", minimum=1, maximum=12, value=1, step=1)
image_resolution = gr.Slider(label="Image Resolution", minimum=256, maximum=768, value=512, step=256)
low_threshold = gr.Slider(label="Canny low threshold", minimum=1, maximum=255, value=100, step=1)
high_threshold = gr.Slider(label="Canny high threshold", minimum=1, maximum=255, value=200, step=1)
ddim_steps = gr.Slider(label="Steps", minimum=1, maximum=100, value=20, step=1)
scale = gr.Slider(label="Guidance Scale", minimum=0.1, maximum=30.0, value=9.0, step=0.1)
seed = gr.Slider(label="Seed", minimum=0, maximum=2147483647, step=1, randomize=True)
eta = gr.Number(label="eta (DDIM)", value=0.0)
a_prompt = gr.Textbox(label="Added Prompt", value='best quality, extremely detailed')
n_prompt = gr.Textbox(label="Negative Prompt",
value='longbody, lowres, bad anatomy, bad hands, missing fingers, pubic hair,extra digit, fewer digits, cropped, worst quality, low quality')
with gr.Column():
result_gallery = gr.Gallery(label='Output', show_label=False, elem_id="gallery").style(grid=2, height='auto')
ips = [input_image, prompt, input_control, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta, low_threshold, high_threshold]
run_button.click(fn=process, inputs=ips, outputs=[result_gallery])
examples_list = [
[
"bird.png",
"bird",
"Canny Edge Map",
"best quality, extremely detailed",
'longbody, lowres, bad anatomy, bad hands, missing fingers, pubic hair,extra digit, fewer digits, cropped, worst quality, low quality',
1,
512,
20,
9.0,
123490213,
0.0,
100,
200
],
[
"turtle.png",
"turtle",
"Scribble",
"best quality, extremely detailed",
'longbody, lowres, bad anatomy, bad hands, missing fingers, pubic hair,extra digit, fewer digits, cropped, worst quality, low quality',
1,
512,
20,
9.0,
123490213,
0.0,
100,
200
]
]
examples = gr.Examples(examples=examples_list,inputs = [input_image, prompt, input_control, a_prompt, n_prompt, num_samples, image_resolution, ddim_steps, scale, seed, eta, low_threshold, high_threshold], outputs = [result_gallery], cache_examples = True, fn = process)
block.launch(debug = True)