Stable Diffusion Techniques for Image Enhancement

Oct 29, 2024

Notes on AI Video - Stable Diffusion Techniques

Introduction

  • Focus on enhancing images using Stable Diffusion
  • Tips for editing elements like people in motion, water, and other image components
  • Aim to create high-quality images with minimal effort

Enhancing Water and Beach Waves

  • Example Image: Created in 3ds Max and rendered in Corona
  • Goal: Improve look of water and waves to make the beach realistic
  • Steps:
    • Select the area to improve (beach waves)
    • Use prompt: "super realistic beach waves from the top"
    • Choose the model (e.g. Photon or original Stable Diffusion model)
    • Result: More realistic waves and natural shore appearance
    • Experiment with different iterations and noise strength for better results.

Improving Boat Waves

  • Select the area around the motorboat for enhancement
  • Use prompt: "wave tail from the moving yacht"
  • Add negative prompt: "big waves" to avoid over-exaggeration
  • Results show more depth and shadows, enhancing the image compared to 3D results
  • AI saves time compared to searching for images for photo bashing.

Applying Motion Blur to 3D People

  • Difficulty in achieving realistic motion blur manually in Photoshop
  • AI offers more realistic motion blur, mimicking real-life photo effects
  • Steps:
    • Use prompt: "super realistic Arabic lady walking in motion blur"
    • Select the person to improve and adjust parameters
    • Model choice: "Realistic Vision" for better results with people
    • Results may include AI hallucinations (e.g., extra limb) which can be regenerated
    • Experiment with denoising strength to find optimal balance (0.3 recommended).

Background and Landscape Generation

  • AI can be used to swap out backgrounds or landscapes to save modeling time
  • Example: Adding a pool to an image
    • Rough sketch of the pool created
    • Prompt: "super realistic water in the pool"
    • Use inpainting feature for improvements on generated images
    • Cropping and adding reflections can enhance results further.

Creating a Background Cityscape

  • Generate realistic cityscapes based on rough sketches
  • Use aerial perspective and reflections in prompts
  • Experiment with different prompts to see variations in output
    • Examples: Adding fog to the scene
    • Check for lighting direction and other details for realism.

Conclusion

  • Importance of experimentation with prompts and settings in Stable Diffusion
  • AI tools can significantly speed up workflow while maintaining image quality
  • Encouragement for feedback and sharing improvements in skills.