When you do a url_download, the returned type is a binary which is why it shows as a base64 string.

The error looks like your jpeg has an unsupported encoding 'Rgba8' but we do support this with "rgba". Could you try url_download(url).image.decode('RGBA')

@chuanlei-coding please let me know if the suggestion works for you, thank you!

@chuanlei-coding please let me know if the suggestion works for you, thank you!

import daft
df = daft.from_pydict(
        {
            "urls": [
                "https://www.getdaft.io/_static/stairs.png",
            ]
        }
    )
df2 = df.with_column("image", df["urls"].url.download().image.decode())
df2.show()

daft cannot deal with png image currently.

Took a quick look, this bug only happens when we preview images in a notebook. In these cases we were incorrectly encoding images that have an alpha channel as JPEG.

Fix is here #4255