如何将本地图像(svg / png)添加到plotly布局？

import plotly.graph_objects as go
from PIL import Image
import io

# 读取本地图像文件
with open('path_to_your_image.png', 'rb') as f:
    image_bytes = f.read()

# 将图像字节转换为PIL图像对象
image = Image.open(io.BytesIO(image_bytes))

# 获取图像的尺寸
width, height = image.size

# 创建Plotly图表
fig = go.Figure()

# 添加图像到布局中
fig.add_layout_image(
    dict(
        source="data:image/png;base64," + image_bytes.encode('base64').decode(),
        xref="x",
        yref="y",
        x=0,
        y=100,  # 根据图像尺寸和图表布局调整坐标
        sizex=width,
        sizey=height,
        sizing="stretch",
        opacity=0.5,
        layer="below"
    )
)

# 更新图表布局
fig.update_layout(
    title='Plotly 图表与本地图像',
    xaxis=dict(visible=False),
    yaxis=dict(visible=False)
)

# 显示图表
fig.show()