ImageRatio(imageRatio)

Description

The ImageRatio node extracts geometric properties from an input image. It returns the image width and height in pixels, followed by two floating-point aspect ratio values. It does not modify or transform the image, making it useful for passing dimensions and ratios to other nodes in a workflow.

Inputs

image

• Type: IMAGE
• Required: Yes

A standard ComfyUI image tensor. The node reads its spatial dimensions from the tensor shape.

Outputs

The node returns four values in a fixed order:

1. INT — Width of the image in pixels.
2. INT — Height of the image in pixels.
3. FLOAT — Width-to-height aspect ratio (width / height).
4. FLOAT — Height-to-width aspect ratio (height / width).

The first integer represents the horizontal pixel dimension, and the second represents the vertical pixel dimension. The floating-point outputs express the same relationship in both directions, so either ratio can be used depending on the downstream node's convention.

Usage Notes

• The node is purely read-only: it only inspects the image tensor and returns numbers.
• All images in a batch are expected to share the same spatial dimensions, so the returned values describe the whole batch.
• The node is useful for sizing latents, conditioning, or other nodes that require explicit width and height values rather than an image tensor.