92 lines
2.6 KiB
Python
92 lines
2.6 KiB
Python
#!/usr/bin/env python3
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"""Generate images from text prompts using Gemini API.
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Usage:
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python generate_image.py "prompt" output.jpg [--model MODEL] [--aspect RATIO] [--size SIZE]
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Environment:
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GEMINI_API_KEY - Required API key
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"""
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import argparse
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import os
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import sys
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from google import genai
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from google.genai import types
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def generate_image(
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prompt: str,
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output_path: str,
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model: str = "gemini-2.5-flash-image",
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aspect_ratio: str | None = None,
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image_size: str | None = None,
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) -> str | None:
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api_key = os.environ.get("GEMINI_API_KEY")
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if not api_key:
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raise EnvironmentError("GEMINI_API_KEY environment variable not set")
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client = genai.Client(api_key=api_key)
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config_kwargs = {"response_modalities": ["TEXT", "IMAGE"]}
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image_config_kwargs = {}
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if aspect_ratio:
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image_config_kwargs["aspect_ratio"] = aspect_ratio
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if image_size:
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image_config_kwargs["image_size"] = image_size
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if image_config_kwargs:
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config_kwargs["image_config"] = types.ImageConfig(**image_config_kwargs)
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config = types.GenerateContentConfig(**config_kwargs)
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response = client.models.generate_content(
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model=model,
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contents=[prompt],
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config=config,
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)
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text_response = None
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image_saved = False
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for part in response.parts:
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if part.text is not None:
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text_response = part.text
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elif part.inline_data is not None:
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image = part.as_image()
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image.save(output_path)
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image_saved = True
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if not image_saved:
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raise RuntimeError("No image was generated.")
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return text_response
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def main():
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parser = argparse.ArgumentParser(description="Generate images using Gemini API")
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parser.add_argument("prompt", help="Text prompt")
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parser.add_argument("output", help="Output file path (.jpg recommended)")
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parser.add_argument("--model", "-m", default="gemini-2.5-flash-image",
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choices=["gemini-2.5-flash-image", "gemini-3-pro-image-preview"])
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parser.add_argument("--aspect", "-a",
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choices=["1:1", "2:3", "3:2", "3:4", "4:3", "4:5", "5:4", "9:16", "16:9", "21:9"])
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parser.add_argument("--size", "-s", choices=["1K", "2K", "4K"])
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args = parser.parse_args()
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try:
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text = generate_image(args.prompt, args.output, args.model, args.aspect, args.size)
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print(f"Image saved to: {args.output}")
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if text:
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print(f"Model response: {text}")
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except Exception as e:
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print(f"Error: {e}", file=sys.stderr)
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sys.exit(1)
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if __name__ == "__main__":
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main()
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