Image Compare

Action ID: image_compare

Description

Compare two images side by side.

Input Parameters

Name	Type	Required	Default	Description
first_image	string	✓	-	First image URL. Supported formats: PNG, JPEG, JPG, WEBP
second_image	string	✓	-	Second image URL. Supported formats: PNG, JPEG, JPG, WEBP

View JSON Schema

Input Schema

{
  "description": "Image compare action input.",
  "properties": {
    "first_image": {
      "title": "First image url",
      "type": "string"
    },
    "second_image": {
      "title": "Second image url",
      "type": "string"
    }
  },
  "required": [
    "first_image",
    "second_image"
  ],
  "title": "ImageCompareActionInput",
  "type": "object"
}

Output Parameters

Name	Type	Description
before	string	The first image URL (before)
after	string	The second image URL (after)

View JSON Schema

Output Schema

{
  "description": "Image compare action output.",
  "properties": {
    "before": {
      "title": "Before",
      "type": "string"
    },
    "after": {
      "title": "After",
      "type": "string"
    }
  },
  "required": [
    "before",
    "after"
  ],
  "title": "ImageCompareActionOutput",
  "type": "object"
}

How It Works

This node takes two image URLs as input and creates a side-by-side comparison visualization. The images are processed and arranged to allow easy visual comparison between the before (first) and after (second) states. The output provides both images in a structured format that can be displayed or further processed in your workflow.

Usage Examples

Example 1: Product Photo Comparison

Input:

first_image: "https://example.com/product-before.jpg"
second_image: "https://example.com/product-after.jpg"

Output:

before: "https://example.com/product-before.jpg"
after: "https://example.com/product-after.jpg"

Example 2: Image Enhancement Comparison

Input:

first_image: "https://storage.example.com/original-photo.png"
second_image: "https://storage.example.com/enhanced-photo.png"

Output:

before: "https://storage.example.com/original-photo.png"
after: "https://storage.example.com/enhanced-photo.png"

Example 3: Design Iteration Review

Input:

first_image: "https://cdn.example.com/design-v1.webp"
second_image: "https://cdn.example.com/design-v2.webp"

Output:

before: "https://cdn.example.com/design-v1.webp"
after: "https://cdn.example.com/design-v2.webp"

Common Use Cases

• Product Development: Compare product photos before and after modifications or improvements

• Image Processing Validation: Verify the effects of image filters, enhancements, or transformations

• Design Reviews: Present design iterations side by side for stakeholder review

• Quality Assurance: Compare original and processed images to ensure quality standards

• A/B Testing: Create visual comparisons for marketing materials or user interface designs

• Photo Editing Workflows: Show before and after results of photo editing operations

• Documentation: Create comparison visuals for tutorials, documentation, or training materials

Error Handling

Error Type	Cause	Solution
Invalid Image URL	URL is malformed or inaccessible	Verify the image URL is valid and publicly accessible
Unsupported Format	Image format is not PNG, JPEG, JPG, or WEBP	Convert the image to a supported format before comparison
Image Not Found	The URL returns a 404 error	Check that the image exists at the specified URL
Network Error	Cannot download the image from the URL	Verify network connectivity and that the image host is reachable
File Size Too Large	Image file exceeds maximum size limit	Reduce the image file size or resolution
Empty URL	Required image URL parameter is missing	Provide valid URLs for both first_image and second_image

Notes

• Supported Formats: Ensure both images are in PNG, JPEG, JPG, or WEBP format for best compatibility.

• Image Accessibility: Both image URLs must be publicly accessible or within your workflow's accessible storage.

• Resolution Matching: For best comparison results, use images with similar aspect ratios and resolutions.

• Use Cases: This node is ideal for before/after comparisons, A/B testing, and quality assurance workflows.

• Output Format: The output preserves the original image URLs, allowing them to be passed to display nodes or further processing.

• Performance: Image comparison is a lightweight operation that primarily organizes the image references rather than processing the images themselves.