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62 lines
2.5 KiB
Python
62 lines
2.5 KiB
Python
from PIL import Image
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import piexif
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from PIL.PngImagePlugin import PngInfo
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import json
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from pathlib import Path
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def write_image_metadata(image_path, metadata):
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img = Image.open(image_path)
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image_path_str = str(image_path)
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if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff")):
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exif_dict = piexif.load(image_path)
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updated_description = json.dumps(metadata).encode("utf-8")
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exif_dict["0th"][piexif.ImageIFD.ImageDescription] = updated_description
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exif_bytes = piexif.dump(exif_dict)
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img.save(image_path, exif=exif_bytes)
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elif image_path_str.lower().endswith(".png"):
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metadata_info = PngInfo()
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metadata_info.add_text("Description", json.dumps(metadata))
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img.save(image_path, "PNG", pnginfo=metadata_info)
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elif image_path_str.lower().endswith(".webp"):
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# Convert metadata to bytes
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metadata_bytes = json.dumps(metadata).encode('utf-8')
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# Use exif parameter to save metadata
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img.save(image_path, "WebP", exif=metadata_bytes, quality=85)
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else:
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print(f"Skipping unsupported file format: {image_path_str}")
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def get_image_metadata(image_path):
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img = Image.open(image_path)
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image_path_str = str(image_path)
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if image_path_str.lower().endswith((".jpg", ".jpeg", ".tiff")):
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exif_dict = piexif.load(str(image_path)) # Convert Path object to string
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existing_description = exif_dict["0th"].get(
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piexif.ImageIFD.ImageDescription, b"{}"
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)
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try:
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return json.loads(existing_description.decode("utf-8"))
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except json.JSONDecodeError as e:
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print(f"Error decoding JSON metadata for {image_path_str}: {e}")
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return {}
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elif image_path_str.lower().endswith(".png"):
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existing_description = img.info.get("Description", "{}")
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try:
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return json.loads(existing_description)
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except json.JSONDecodeError as e:
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print(f"Error decoding JSON metadata for {image_path_str}: {e}")
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return {}
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elif image_path_str.lower().endswith(".webp"):
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existing_metadata = img.info.get("exif", b"{}")
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try:
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if isinstance(existing_metadata, bytes):
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existing_metadata = existing_metadata.decode('utf-8')
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return json.loads(existing_metadata)
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except json.JSONDecodeError as e:
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print(f"Error decoding JSON metadata for {image_path_str}: {e}")
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return {}
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else:
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print(f"Unsupported file format: {image_path_str}")
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return None |