not working img to img

[shakapakalo]

curl -X POST "http://localhost:8000/v1/chat/completions"
-H "Authorization: Bearer han1234"
-H "Content-Type: application/json"
-d '{
"model": "gpt-image",
"messages": [
{
"role": "user",
"content": [
{
"type": "text",
"text": "将这张图片变成油画风格"
},
{
"type": "image_url",
"image_url": {
"url": "data:image/png;base64,<base64_encoded_image_data>"
}
}
]
}
],
"stream": true
}'