ComfyUI WanVideo Auto Resize

A high-performance ComfyUI custom node for intelligent image resizing with industry-standard presets and smart orientation detection. Optimized for video workflows and batch processing.

Features

• Industry Standard Presets: 480p, 576p, 720p, 1080p resolutions
• Smart Orientation Detection: Automatic portrait/landscape/square detection with improved ranges
• Multiple Resize Modes: Keep Proportion, Pad, Crop, Stretch
• Quality Options: Multiple interpolation methods for different use cases
• GPU Accelerated: CUDA optimized with automatic mixed precision
• Flexible Padding: Black, White, Gray, or Blur edge options

Installation

1. Clone into your ComfyUI custom_nodes directory:

   cd ComfyUI/custom_nodes
   git clone https://github.com/your-username/ComfyUI-WanVideoAutoResize
   

2. Restart ComfyUI

Usage

Input Parameters

• Preset Resolution: Choose from standard resolutions or Custom
• Resize Mode: How to handle aspect ratio differences
• Orientation Priority: Auto-detect or force specific orientation
• Interpolation: Choose quality vs speed
  • Bilinear: Good balance of speed and quality (default)
  • Bicubic: Higher quality, slower processing
  • Nearest: Maximum speed, good for pixel art
  • Lanczos: High-quality downscaling

Outputs

• image: Processed image tensor
• width/height: Final dimensions
• orientation: Detected orientation
• aspect_ratio: Final aspect ratio
• resize_info: Processing details

Orientation Detection

Improved range detection handles near-square images better:

• Square: Aspect ratio 0.85-1.18 (e.g., 410×390 = 1.05)
• Landscape: Aspect ratio > 1.18
• Portrait: Aspect ratio < 0.85

Performance

• GPU Optimization: Automatic CUDA acceleration when available
• Memory Efficient: Smart memory management for large images
• Fast Interpolation: Nearest neighbor for maximum speed
• Quality Interpolation: Bicubic and Lanczos for best results

Example Workflows

Fast Video Processing

Preset: 720p
Mode: Keep Proportion
Interpolation: Nearest
Orientation: Auto Detect

High-Quality Output

Preset: 1080p
Mode: Pad
Interpolation: Bicubic
Orientation: Auto Detect

License

MIT License - see LICENSE file for details.