如何让我的插件与 BIMP 一起工作？

Question

这个插件在我单独运行时工作正常，但是当我将它作为一个过程添加到 Batch Image Manipulation Plugin (BIMP) 时，它只输出 412x316 的图像，没有我想要的 640x360 的边框。

from gimpfu import *

def resize_canvas(image, drawable):
    # Resize the image
    pdb.gimp_image_scale(image, 412, 316)

    # Get the new width and height of the image
    width, height = pdb.gimp_image_width(image), pdb.gimp_image_height(image)
    
    # Change the canvas size
    pdb.gimp_image_resize(image, 640, 360, 0, 0)

    # Calculate the x and y coordinates to center the image
    x = (640 - width) / 2
    y = (360 - height) / 2

    # Center the image on the canvas
    pdb.gimp_layer_set_offsets(drawable, x, y)

register(
    "python_fu_resize_canvas",
    "Resize and center an image",
    "Resize an image and center it on a canvas",
    "Name",
    "Name",
    "2023",
    "Resize and Center",
    "",
    [
        (PF_IMAGE, "image", "Input image", None),
        (PF_DRAWABLE, "drawable", "Input drawable", None)
    ],
    [],
    resize_canvas,
    menu="<Image>/Filters/Misc"
)

main()

我正在努力使 412x316 图像周围有一个透明边框，使图像成为 640x360.