From Photos to Masterpieces: Automating Line Art Conversion with AI

🛠️ Workflow Overview

Purpose and Function: This workflow automatically converts images to line art style using ControlNet, LoRA models, and image refinement techniques. It processes images into a clean line art output and enhances facial details.

Core Features:

1. Line Art Extraction: Uses ControlNet + line art models to convert the image.

2. Facial Refinement: Enhances facial details using FaceDetailer.

3. Image Preview & Save: Displays and saves the final line art image.

🔥 Core Models

1. Lineart_v1.1

   • Function: Main model responsible for line art transformation.

   • Installation:

     • Download the .safetensors model and place it in models/Stable-diffusion.

2. ControlNet

   • Model: control_v11p_sd15_lineart

   • Function: Guides the line art generation.

   • Installation:

     • Place models in models/ControlNet.

3. LoRA model: lineart_1.0

   • Function: Enhances line art quality.

   • Installation:

     • Place the model in models/Lora.

⚙️ Nodes Explanation

• LoadImage: Upload image.

• ImageResize+: Resize the image.

• LineArtPreprocessor: Extract line art.

• FaceDetailer: Enhance facial details.

• PreviewImage & SaveImage: Display and save the output.

🔥 Inputs & Outputs

✅ Inputs:

• Uploaded image.

• ControlNet and LoRA models.

• Face refinement settings.

✅ Outputs:

• Final line art image.

• Enhanced facial details.

⚠️ Considerations

• Hardware Requirements: Use GPU with ≥8GB VRAM.

• Compatibility: Ensure model and ComfyUI versions match.

• Resolution: Keep image size at 1024x1024 or lower for efficiency.