透明背景图像

curl https://api.venice.ai/api/v1/image/generate \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -o sticker.png \
  -d '{
    "model": "gpt-image-2-5-flare",
    "prompt": "A die-cut sticker of a cartoon rocket ship, bold outlines, flat colors, no background",
    "format": "png",
    "transparent_background": true,
    "quality": "low",
    "return_binary": true
  }'

from PIL import Image

im = Image.open("sticker.png")
print(im.format, im.mode, im.size)  # PNG RGBA (1024, 1024)

alpha = im.getchannel("A")
hist = alpha.histogram()
total = sum(hist)
print(f"fully transparent: {100 * hist[0] / total:.1f}%")
print(f"partially transparent: {100 * sum(hist[1:255]) / total:.1f}%")
print("subject bbox:", alpha.getbbox())

import base64
from openai import OpenAI

client = OpenAI(
    base_url="https://api.venice.ai/api/v1",
    api_key=VENICE_API_KEY,
)

result = client.images.generate(
    model="gpt-image-2-5-flare",
    prompt="A flat vector icon of a paper airplane, isolated, no background",
    output_format="webp",
    background="transparent",
    quality="low",
)

with open("icon.webp", "wb") as f:
    f.write(base64.b64decode(result.data[0].b64_json))

curl https://api.venice.ai/api/v1/image/edit \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -F "model=gpt-image-2-5-flare-edit" \
  -F "prompt=Make the apple green and remove the background" \
  -F "[email protected]" \
  -F "transparent_background=true" \
  -o apple-green.png

curl -s "https://api.venice.ai/api/v1/models?type=image" \
  | jq -r '.data[] | select(.model_spec.constraints.supportsTransparentBackground == true) | .id'