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AI General Online Image Generation Tool Tutorial
Choosing the Right Online AI Image Generation Tool
Currently mainstream online AI image generation tools include:
- **Stable Diffusion WebUI (online hosted version)**: such as DreamStudio, Playground AI, offering rich parameter adjustments.
- **Midjourney**: used via Discord, known for artistic style and high quality.
- **DALL·E 3**: integrated into ChatGPT, strong natural language understanding.
- **Domestic platforms**: such as Wenxin Yige (Baidu), Tongyi Wanxiang (Alibaba), Jimeng (ByteDance), support Chinese and are easily accessible.
For beginners, it is recommended to start with **Jimeng** or **LiblibAI**, which have friendly interfaces and abundant tutorials.
Writing Efficient Prompts
The prompt is the core of AI image generation. Basic formula: **Subject + Scene + Style + Lighting + Quality**.
Example:
`A cute orange cat sitting on a windowsill, sunlight filtering through curtains, warm atmosphere, photographic style, shallow depth of field, high definition, rich details`
Tips:
- Describe specifically to avoid ambiguity.
- Add style words such as "cyberpunk", "watercolor painting", "3D rendering".
- Use negative prompts to exclude unwanted elements, e.g., "blurry, low quality, extra fingers".
- Appropriately reference prompts from excellent works in the community for modification.
Adjusting Generation Parameters
Parameters vary by tool, common ones include:
- **Image size**: affects composition and detail; commonly 512x512, 768x512, 1024x1024.
- **Sampling steps**: generally 20-30 steps balance speed and quality.
- **CFG Scale**: controls prompt adherence; 5-15 is commonly used, 7-10 is safer.
- **Seed**: fixing it reproduces the same result, facilitating fine-tuning.
- **Model**: choose a base model or fine-tuned model that excels in a particular style.
Steps for Online Text-to-Image
- Open the selected online AI image generation website and register/login.
- Go to the "Text to Image" page.
- Fill in the description in the prompt input box and add negative prompts.
- Set parameters such as size, quantity, and style.
- Click "Generate" and wait for processing.
- Preview the generated results; you can zoom in to inspect details.
- Download satisfactory images, or continue adjusting prompts to regenerate.
- **Iterative optimization**: Generate drafts with low steps to establish composition, then increase steps and resolution.
- **Use reference images**: Upload an image as a style or content reference, combined with prompts for image-to-image.
- **Inpainting**: Redraw unsatisfactory areas of the image to enhance controllability.
- **Batch generation**: Generate 4-8 images at once and pick the best.
- **Learn from community**: Browse platform communities and copy others' prompts for experimentation.
Advanced Tips
FAQ
Can AI-generated images be used commercially?
It depends on the platform's terms. Some platforms allow free commercial use, some require a paid membership or prohibit commercial use. It is recommended to check the specific platform's usage agreement; open-source models like Stable Diffusion generally allow commercial use.
Why do generated images have deformities or extra limbs?
This is a common issue in AI image generation. You can add "deformities, extra limbs, anatomical errors" to the negative prompt, or use models and LoRAs specifically optimized for hands.
How can I make generated images clearer?
Increase image size, increase sampling steps, use high-quality models, and consider using AI upscaling tools for super-resolution processing.
Is it better to use Chinese or English for prompts?
Most international tools support English better, but domestic platforms work well with Chinese. It is recommended to use English prompts primarily, and you can use translation tools to optimize expression.
Are free online tools sufficient?
Free tools often have usage limits, slower speeds, or watermarks. Paid tools offer higher resolution, faster generation, and more advanced features. Choose according to your needs.