Upscaler Nodes

Upscaler Nodes are powerful tools within the Dal Nulla editor designed to improve the quality, resolution, and visual fidelity of your assets, including both images and videos. Whether you have a low-resolution generated image, a blurry video frame, or an old damaged photograph, the Upscaler Node can help revitalize it using advanced AI models.

Functionality

An Upscaler Node takes an input (an Image Node, another Upscaler Node, or a Scene Node’s video frame) and processes it to produce a higher-quality version.

Key Features

• Upscaling: Increase resolution by 2x or 4x (e.g., turn a 1K image into 4K, or upscale video frames).
• Face Recovery: Automatically detect and reconstruct facial details that are blurry or distorted in images or video frames.
• Denoising: Remove grain and visual noise from low-light or low-quality source material (for both images and videos).
• Restoration: Specialized modes for fixing damaged, scratched, or faded vintage photos or video footage.
• Lighting Adjustment: Correct exposure and color balance for images and videos.

Modes & Parameters

The Upscaler Node offers several sub-modes tailored to specific needs. You can configure these in the Inspector Panel when the node is selected.

1. Enhance Mode (Standard)

The default mode for general-purpose upscaling. It focuses on sharpness and fidelity.

• Scale: 2x or 4x.
• Face Recovery: Toggle to enhance faces specifically.
• Denoise Strength: (0.0 - 1.0) Slider to control noise reduction.
• Sharpen Strength: (0.0 - 1.0) Slider to control edge sharpening.
• Model: Standard or High Fidelity (Pro).

2. Restore Mode

Designed for old, damaged, or heavily compressed images and videos.

• Model: Dust-Scratch (Removes physical defects) or Old Photo (General restoration).
• Use Case: Bringing family archives back to life.

3. Lighting Mode

Adjusts the lighting conditions of the image or video.

• Model: Adjust (Auto-exposure), White Balance, or Colorize (B&W to Color).

4. Matting Mode (Object)

Isolates the subject by removing the background.

• Use Case: Creating sprites or assets for compositing.

Use Case: Restoring Old Family Photos

One of the most powerful applications of the Upscaler Node is restoring vintage photography. Old photos often suffer from low resolution, blurriness, and physical damage like scratches.

The Workflow

For the best results with severely damaged photos, we recommend a two-step process:

1. Step 1 (Restore): Connect your original image to an Upscaler Node set to Restore mode (using the Dust-Scratch or Old Photo model). This fixes the physical damage and heavy artifacts.
2. Step 2 (Enhance): Connect the output of the first node to a second Upscaler Node. Set this one to Enhance mode (2x or 4x scale), and enable Face Recovery and Sharpen to bring back crisp details.

Example

Here is a real-world example of restoring a vintage group photo.

The Editor Setup: Notice how the original uploaded image (left) is connected to a chain of Upscaler nodes to progressively improve quality.

Before & After:

Original

Restored Result

The result is a crisp, high-resolution image with recovered facial details, ready for printing or use in your video projects.

Use Case: Adjusting Lighting

Sometimes a generated image or a photo is perfect in composition but poor in lighting. The Upscaler Node’s Lighting mode can correct exposure, white balance, or even colorize black and white images.

The Workflow

1. Connect: Connect your dark or washed-out image to an Upscaler Node.
2. Configure: Select the Lighting mode in the Inspector.
3. Model Selection: Choose Adjust for general exposure correction or White Balance if the colors are off.
4. Generate: Process the image to reveal hidden details.

Example

Correcting a low-light indoor shot.

The Editor Setup:

Before & After:

Original (Underexposed)

Lighting Adjusted