When generating portraits with Stable Diffusion, using carefully crafted negative prompts is crucial for getting high-quality results free of defects. As an avid Stable Diffusion user focusing on portrait art, I’ve compiled some of my most effective negative prompt examples over time.
In this article, I’ll provide detailed insights and prompt examples to help you make the most out of negative prompts for portraits. Whether you’re just starting out or looking to take your portraits to the next level, you’ll find plenty of practical tips here.
Common Portrait Issues Solved by Negative Prompts
Before we dive into prompt examples, let’s look at some common portrait issues that negative prompts can help avoid:
Strange distortions and bad anatomy
Without proper guidance, AI can warp and distort facial features in unrealistic ways. Negative prompts like “bad anatomy” instruct Stable Diffusion to avoid anatomical mistakes.
Extra or missing body parts
Stray limbs, extra eyes, missing hands – negative prompts easily fix these creepy glitches. For example, add “extra fingers” or “missing hands” to remove unwanted extras.
Low image quality and artifacts
Tell Stable Diffusion to avoid low-res, blurry, and glitchy results with prompts like “low quality”, “jpeg artifacts”, “blurry”.
Unwanted text, watermarks, logos
Specify you don’t want text overlays, watermarks, or logos using negative prompts like “text”, “watermark”, “logo”.
Crafting Effective Negative Portrait Prompts
When building negative prompts, start general and get more specific if needed. You can combine multiple prompts with commas for precise control.
Here are some examples of effective negative prompts for portraits:
General Negative Prompts
bad anatomy, errors, missing fingers, mutated hands, extra limbs, distorted proportions, disfigured face, ugly, blurry, low quality, text, watermark, logoThis covers all common portrait issues in one concise prompt. Feel free to remove terms not relevant to your needs.
Preventing Facial Distortions
bad anatomy, errors, ugly, deformed face, distorted face, unrealistic face, mutated face, fused face Focus specifically on avoiding facial distortions. Adjust intensity of prompts as needed – for example, boost “ugly” or “deformed face” effects with a colon plus number like “:1.5”.
Fixing Body Proportions
bad anatomy, missing limbs, extra limbs, distorted proportions, unrealistic body, disproportionate bodyTarget incorrect body proportions and stray limbs with this prompt.
Removing Image Artifacts
low quality, lowres, jpeg artifacts, grainy, blurry, glitchy, corruptedEliminate technical image issues for clean, high-quality portraits.
Example Portraits Using Negative Prompts
Below are some examples of portraits I created using carefully crafted negative prompts:
Woman portrait with red hair
Prompt: A beautiful young woman with long red hair, portrait photo
Negative prompt: bad anatomy, errors, missing fingers, mutated hands, extra limbs, distorted proportions, disfigured face, ugly, blurry, low quality, text, watermark, logo
Man with beard portrait
Prompt: Portrait of a middle aged man with a beard, neutral expression
Negative prompt: bad anatomy, errors, deformed face, distorted face, unrealistic face, mutated face, fused face, missing fingers, extra fingers, ugly fingers, long fingers, extra limbs, distorted proportions
Useful Websites for Negative Prompts
Here are some great sites to find additional negative prompt examples for portraits:
- Negative Prompt Guide – In-depth explanations and examples
- 100+ Negative Prompts List – Helpful premade prompt list
- Best Negative Prompts – Great genre-specific prompts
- Prompt Hero – Search millions of community prompts
Final Thoughts
Crafting the perfect negative prompts can feel overwhelming at first, but gets easier with experimentation. Start simple, and slowly refine your prompts based on the quality of generated images.
The key is specificity. Identify exact unwanted elements and describe them accurately to steer the AI away during image generation. Portraits have common defects like weird anatomy, missing hands, and distorted faces – target these areas explicitly in prompts.
I hope these detailed prompt examples and tips help you create stunning AI portraits free of defects using Stable Diffusion. Feel free to reference this guide whenever you need some negative prompt inspiration!