Constrain Image for Video Node Documentation

Overview

The Constrain Image for Video node is designed to resize images while maintaining their aspect ratio. This node allows you to specify maximum and minimum dimensions for the resizing operation. Additionally, it can optionally crop the images to fit within the specified bounds. This capability is particularly useful when preparing images for video applications where consistent dimensions are often required.

Inputs

This node accepts the following inputs:

• Images: Input images that you want to resize. The node processes these images and adjusts their sizes based on the provided parameters.
• Maximum Width: The maximum allowable width for the resized image.
• Maximum Height: The maximum allowable height for the resized image.
• Minimum Width: The minimum width constraint for the resized image.
• Minimum Height: The minimum height constraint for the resized image.
• Crop if Required: A choice input to decide whether the image should be cropped if its dimensions exceed the maximum allowable size. Options are "yes" or "no", with "no" being the default.

Outputs

The node produces the following outputs:

• Resized Images: The resultant images that have been resized according to the specified constraints. These images are adjusted to maintain their aspect ratio within the set limits.

Usage in ComfyUI Workflows

The Constrain Image for Video node can be integrated into workflows where image size consistency is crucial. Some potential use cases include:

• Video Editing: Preparing images for video timelines, where consistent image dimensions lead to smooth transitions and visuals.
• Batch Processing: Applying uniform constraints to a batch of images, ensuring consistency across all outputs.
• Pre-processing: Reducing the size of images for online or cloud-based applications to optimize performance and reduce storage requirements.

Special Features and Considerations

• Aspect Ratio Maintenance: This node ensures that images retain their original aspect ratio, preventing distortion.
• Optional Cropping: If cropping is enabled, images can be cropped to fit within the specified maximum dimensions. This feature allows for flexibility depending on the specific requirements for image dimensions.
• Versatile Resizing: The capability to set both minimum and maximum constraints makes this node adaptable for various use cases.

In summary, the Constrain Image for Video node is a versatile tool for resizing images to meet specific size requirements while maintaining quality and aspect ratio. It provides flexibility in how images are resized and cropped, allowing for both manual and automated integration into workflows.