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import os
import hashlib
import datasets
root_path = './Datasets/'
data = datasets.load_dataset("allenai/pixmo-points", split="train", cache_dir=root_path)
len_data = len(data)
image_folder = os.path.join(root_path,"pixmo_images")
for i,example in enumerate(data):
print(i,len_data,f"{(i / len_data) * 100:.3f}%")
# break
image_hash = example["image_sha256"]
image_path = os.path.join(image_folder, f"{image_hash}.jpg")
if not os.path.exists(image_path):
print('image does not exist, skip')
continue # 图片不存在，跳过
with open(image_path, "rb") as img_file:
image_bytes = img_file.read()
file_hash = hashlib.sha256(image_bytes).hexdigest()
print('hash matches')
if file_hash != image_hash:
os.remove(image_path) # 哈希不匹配，删除图片
print('hash mismatch, delete')
# break
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