在Python中将灰度图像转换为SVG

import numpy as np
import matplotlib.pyplot as plt
import svgwrite

image = plt.imread('gray_image.png')

def image_to_svg(image):
    height, width = image.shape
    dwg = svgwrite.Drawing('output.svg', profile='tiny')
    path_data = ''
    for y in range(height):
        for x in range(width):
            intensity = image[y, x]
            path_data += f'M{x},{y} L{x+1},{y} ' if intensity > 0 else f'M{x},{y} L{x+1},{y} M{x},{y+1} L{x+1},{y+1} '
    dwg.add(dwg.path(d=path_data, fill='none', stroke='black'))
    dwg.save()

image_to_svg(image)