Replace/add 使用 Pillow 从一个文件到另一个文件的 Tiff 图像标签

Question

我是 python 的新手。我有两个 tiff 图像。一个标签正确 (source.tif) 而另一个标签不正确 (target.tif)。

我可以使用以下 python 脚本读取正确图像的标签。

from PIL import Image
from PIL.TiffTags import TAGS
Image.MAX_IMAGE_PIXELS = None

# open image
sourceimg = Image.open('images/source.tif')

# extract exif data
exifdata = sourceimg.getexif()

# get dictionary of tags
for tag_id in exifdata:
    # get the tag name, instead of human unreadable tag id
    tag = TAGS.get(tag_id, tag_id)
    data = exifdata.get(tag_id)
    # decode bytes 
    if isinstance(data, bytes):
        data = data.decode()
    print(f"{tag:25}: {data}")

如何从源代码中获取这些标签并且 overwrite/add 仅 target.tif 中的某些参数？

Answer 1

TiffImageFile.tag_v2 dict can be modified and used as the tiffinfo argument when saving目标图片：

from PIL import Image

sourceimg = Image.open("source.tif")
targetimg = Image.open("target.tif")

# Get the TIFF tags from the source image
tiffinfo = sourceimg.tag_v2

# Add or modify any tags you want (using the tag number as key)
# Tag number 270 is the ImageDescription tag
tiffinfo[270] = "Example image"

# Save the target image with the correct tags
targetimg.save("target.tif", tiffinfo=tiffinfo)

print(targetimg.tag_v2[270])
>>> Example image

Replace/add 使用 Pillow 从一个文件到另一个文件的 Tiff 图像标签

Replace/add Tiff image tags using Pillow from one file to another

python-imaging-library

python-3.x