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import argparse
import json
from PIL import Image, PngImagePlugin
from rich.console import Console
from rich import print
from rich_argparse import RichHelpFormatter
import os
from pathlib import Path
console = Console()
# BNK_CutoffSetRegions
# BNK_CutoffRegionsToConditioning
# BNK_CutoffBasePrompt
# Extracts metadata from a PNG image and returns it as a dictionary
def extract_metadata(image_path):
image = Image.open(image_path)
prompt = image.info.get("prompt", "")
workflow = image.info.get("workflow", "")
if workflow:
workflow = json.loads(workflow)
if prompt:
prompt = json.loads(prompt)
console.print(f"Metadata extracted from [cyan]{image_path}[/cyan].")
return {
"prompt": prompt,
"workflow": workflow,
}
# Embeds metadata into a PNG image
def embed_metadata(image_path, metadata):
image = Image.open(image_path)
o_metadata = image.info
pnginfo = PngImagePlugin.PngInfo()
if prompt := metadata.get("prompt"):
pnginfo.add_text("prompt", json.dumps(prompt))
elif "prompt" in o_metadata:
pnginfo.add_text("prompt", o_metadata["prompt"])
if workflow := metadata.get("workflow"):
pnginfo.add_text("workflow", json.dumps(workflow))
elif "workflow" in o_metadata:
pnginfo.add_text("workflow", o_metadata["workflow"])
imgp = Path(image_path)
output = imgp.with_stem(f"{imgp.stem}_comfy_embed")
index = 1
while output.exists():
output = imgp.with_stem(f"{imgp.stem}_{index}_comfy_embed").with_suffix(".png")
index += 1
image.save(output, pnginfo=pnginfo)
console.print(f"Metadata embedded into [cyan]{output}[/cyan].")
# CLI subcommand: extract
def extract(args):
input_files = []
for input_path in args.input:
if os.path.isdir(input_path):
folder_path = input_path
input_files.extend(
[
os.path.join(folder_path, file_name)
for file_name in os.listdir(folder_path)
if file_name.lower().endswith((".png", ".jpg", ".jpeg"))
]
)
else:
input_files.append(input_path)
if len(input_files) == 1:
metadata = extract_metadata(input_files[0])
if args.print_output:
print(json.dumps(metadata, indent=4))
else:
if not args.output:
output = Path(input_files[0]).with_suffix(".json")
index = 1
while output.exists():
output = (
Path(input_files[0])
.with_stem(f"{Path(input_files[0]).stem}_{index}")
.with_suffix(".json")
)
index += 1
else:
output = args.output
with open(output, "w") as file:
json.dump(metadata, file, indent=4)
console.print(f"Metadata extracted and saved to [cyan]{output}[/cyan].")
else:
metadata_dict = {}
for input_file in input_files:
metadata = extract_metadata(input_file)
filename = os.path.basename(input_file)
output = (
Path(args.output) / f"{filename}.json"
if args.output
else Path(input_file).with_suffix(".json")
)
index = 1
while output.exists():
output = Path(args.output).parent / f"{filename}_{index}.json"
index += 1
with open(output, "w") as file:
json.dump(metadata, file, indent=4)
metadata_dict[filename] = metadata
if args.output:
with open(args.output, "w") as file:
json.dump(metadata_dict, file, indent=4)
console.print(
f"Metadata extracted and saved to [cyan]{args.output}[/cyan]."
)
else:
console.print("Multiple metadata files created.")
# CLI subcommand: embed
def embed(args):
input_files = []
for input_path in args.input:
if os.path.isdir(input_path):
folder_path = input_path
input_files.extend(
[
os.path.join(folder_path, file_name)
for file_name in os.listdir(folder_path)
if file_name.lower().endswith(".json")
]
)
else:
input_files.append(input_path)
for input_file in input_files:
with open(input_file) as file:
metadata = json.load(file)
image_path = input_file.replace(".json", ".png")
if args.output:
output_dir = args.output
if os.path.isdir(output_dir):
output_path = os.path.join(output_dir, os.path.basename(image_path))
index = 1
while os.path.exists(output_path):
output_path = os.path.join(
output_dir,
f"{os.path.basename(image_path)}_{index}.png",
)
index += 1
else:
output_path = output_dir
else:
output_path = image_path.replace(".png", "_comfy_embed.png")
embed_metadata(image_path, metadata)
# os.rename(image_path, output_path)
console.print(f"Metadata embedded into [cyan]{output_path}[/cyan].")
if __name__ == "__main__":
# Create the main CLI parser
parser = argparse.ArgumentParser(
prog="image-metadata-cli", formatter_class=RichHelpFormatter
)
subparsers = parser.add_subparsers(title="subcommands")
# Parser for the "extract" subcommand
extract_parser = subparsers.add_parser(
"extract",
help="Extract metadata from PNG image(s) or folder",
formatter_class=RichHelpFormatter,
)
extract_parser.add_argument(
"input", nargs="+", help="Input PNG image file(s) or folder path"
)
extract_parser.add_argument(
"--print",
dest="print_output",
action="store_true",
help="Print the output to stdout",
)
extract_parser.add_argument("--output", help="Output JSON file(s) or directory")
extract_parser.set_defaults(func=extract)
# Parser for the "embed" subcommand
embed_parser = subparsers.add_parser(
"embed",
help="Embed metadata into PNG image(s) or folder",
formatter_class=RichHelpFormatter,
)
embed_parser.add_argument(
"input", nargs="+", help="Input JSON file(s) or folder path"
)
embed_parser.add_argument("--output", help="Output PNG image file(s) or directory")
embed_parser.set_defaults(func=embed)
# Parse the command-line arguments and execute the appropriate subcommand
args = parser.parse_args()
if hasattr(args, "func"):
try:
args.func(args)
except ValueError as e:
console.print(f"[bold red]Error:[/bold red] {str(e)}")
else:
parser.print_help()
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