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gradio_pww.py
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gradio_pww.py
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from PIL import Image, ImageDraw
import numpy as np
import math
import torch
import ast
import gradio as gr
import dotenv
from paint_with_words import paint_with_words
dotenv.load_dotenv()
MAX_NUM_COLORS = 8
def run_pww(color_map_image, init_image, color_context, input_prompt, a_prompt, n_prompt, num_samples, ddim_steps, scale, seed, eta, device, width, height):
color_map_image = color_map_image.resize((width, height), Image.Resampling.NEAREST)
if init_image is not None:
init_image = init_image.resize((width, height), Image.Resampling.BILINEAR)
color_context = ast.literal_eval(color_context)
if device == 'cuda':
device += ':0'
gen_seed = [seed]
if num_samples > 1:
gen = torch.Generator()
gen.manual_seed(seed)
gen_seed.extend([int(i) for i in torch.randint(0, 2147483647, (1, num_samples-1), generator=gen).ravel()])
images = []
for _seed in gen_seed:
img = paint_with_words(
color_context=color_context,
color_map_image=color_map_image,
init_image=init_image,
input_prompt='%s,%s'%(input_prompt,a_prompt),
unconditional_input_prompt=n_prompt,
num_inference_steps=ddim_steps,
guidance_scale=scale,
device=device,
seed=_seed,
weight_function=lambda w, sigma, qk: 0.4 * w * math.log(1 + sigma) * qk.max(),
strength=eta
)
images.append(img)
return images
def create_canvas(h, w):
return np.zeros(shape=(h, w, 3), dtype=np.uint8) + 255
def extract_color_textboxes(color_map_image):
# Get unique colors in color_map_image
colors = unique_colors(color_map_image)
color_masks = [get_color_mask(color, color_map_image) for color in colors]
# Append white blocks to color_masks to fill up to MAX_NUM_COLORS
num_missing_masks = MAX_NUM_COLORS - len(color_masks)
white_mask = Image.new("RGB", color_map_image.size, color=(32, 32, 32))
color_masks += [white_mask] * num_missing_masks
default_prompt = ["obj" for _ in range(len(colors))] + ["" for _ in range(len(colors), MAX_NUM_COLORS)]
default_strength = ["0.5" for _ in range(len(colors))] + ["" for _ in range(len(colors), MAX_NUM_COLORS)]
default_seeds = ["-1" for _ in range(len(colors))] + ["" for _ in range(len(colors), MAX_NUM_COLORS)]
colors.extend([None] * num_missing_masks)
return (*color_masks, *default_prompt, *default_strength, *default_seeds, *colors)
def get_color_mask(color, image, threshold=30):
"""
Returns a color mask for the given color in the given image.
"""
img_array = np.array(image, dtype=np.uint8)
color_diff = np.sum((img_array - color) ** 2, axis=-1)
img_array[color_diff > threshold] = img_array[color_diff > threshold] * 0
return Image.fromarray(img_array)
def unique_colors(image, threshold=0.01):
colors = image.getcolors(image.size[0] * image.size[1])
total_pixels = image.size[0] * image.size[1]
unique_colors = []
for count, color in colors:
if count / total_pixels > threshold:
unique_colors.append(color)
return unique_colors
def collect_color_content(*args):
n = len(args)
chunk_size = n // 4
colors, prompts, strengths, seeds = [args[i:i+chunk_size] for i in range(0, n, chunk_size)]
content_collection = []
for color, prompt, strength, seed in zip(colors, prompts, strengths, seeds):
if color is not None:
input_str = f'{color}:"{prompt},{strength},{seed}"'
content_collection.append(input_str)
if len(content_collection) > 0:
return "{" + ",".join(content_collection) + "}"
else:
return ""
if __name__ == '__main__':
block = gr.Blocks().queue()
with block:
with gr.Row():
gr.Markdown("## Paint-with-word")
with gr.Row():
with gr.Column():
with gr.Row():
color_map_image = gr.Image(label='Segmentation map', source='upload', type='pil', tool='color-sketch', id='segmentation-map')
init_image = gr.Image(label='Initial image', source='upload', type='pil')
prompt = gr.Textbox(label="Prompt")
color_context = gr.Textbox(label="Color context", value='')
run_button = gr.Button(value="Run Paint-with-Word")
with gr.Column():
with gr.Accordion("Color content options", open=False):
with gr.Row():
extract_color_boxes_button = gr.Button(value="Extract color content")
generate_color_boxes_button = gr.Button(value="Generate color content")
prompts = []
strengths = []
seeds = []
color_maps = []
colors = [gr.Textbox(value="", visible=False) for i in range(MAX_NUM_COLORS)]
for n in range(MAX_NUM_COLORS):
with gr.Accordion('item%d'%n):
with gr.Row():
color_maps.append(gr.Image(image=create_canvas(15,3), interactive=False, type='numpy'))
with gr.Column():
prompts.append(gr.Textbox(label="Prompt", interactive=True))
with gr.Row():
strengths.append(gr.Textbox(label="Strength", interactive=True))
seeds.append(gr.Textbox(label="Random Seed", interactive=True))
with gr.Accordion("Advanced options", open=False):
width = gr.Slider(label="Width", minimum=256, maximum=1024, value=512, step=1)
height = gr.Slider(label="Height", minimum=256, maximum=1024, value=512, step=1)
num_samples = gr.Slider(label="Images", minimum=1, maximum=12, value=1, step=1)
ddim_steps = gr.Slider(label="Steps", minimum=1, maximum=100, value=30, step=1)
scale = gr.Slider(label="Guidance Scale", minimum=0.1, maximum=30.0, value=7.5, step=0.1)
seed = gr.Slider(label="Seed", minimum=-1, maximum=2147483647, step=1, value=0)
eta = gr.Number(label="eta (DDIM)", value=0.5)
a_prompt = gr.Textbox(label="Added Prompt", value='')
n_prompt = gr.Textbox(label="Negative Prompt", value='')
device = gr.inputs.Dropdown(label='Device', default='cuda', choices=['cuda', 'mps'])
with gr.Row():
gr.Markdown("### Results")
result_gallery = gr.Gallery(label='Output', show_label=False, elem_id="gallery").style(grid=2, height='auto')
extract_color_boxes_button.click(fn=extract_color_textboxes, inputs=[color_map_image], outputs=[*color_maps, *prompts, *strengths, *seeds, *colors])
generate_color_boxes_button.click(fn=collect_color_content, inputs=[*colors, *prompts, *strengths, *seeds], outputs=[color_context])
ips = [color_map_image, init_image, color_context, prompt, a_prompt, n_prompt, num_samples, ddim_steps, scale, seed, eta, device, width, height]
run_button.click(fn=run_pww, inputs=ips, outputs=[result_gallery])
block.launch(server_name='0.0.0.0')