Get Images From Link

Get Images From Link

Prerequisites

Before using this node, ensure you have:

• Basic understanding of workflow creation in Agentic WorkFlow
• Appropriate browser permissions configured (if applicable)
• Required dependencies installed and configured

Overview

The Get Images From Link node discovers and extracts all images from web pages, providing comprehensive image metadata, URLs, and properties for content analysis and media processing workflows. This node is essential for media collection, content auditing, and automated image processing pipelines.

Purpose and Functionality

This node performs comprehensive image discovery by:

• Scanning web pages for all image elements (img, picture, svg)
• Extracting image URLs, alt text, dimensions, and metadata
• Handling responsive images and different image formats
• Providing structured data for image analysis and processing
• Supporting both static and dynamically loaded images

Key Features

• Complete Image Discovery: Finds all image elements including responsive images and lazy-loaded content
• Metadata Extraction: Captures alt text, dimensions, file sizes, and image attributes
• Format Support: Handles JPG, PNG, GIF, SVG, WebP, and other modern image formats
• Responsive Image Handling: Processes srcset attributes and picture elements for different screen sizes

Primary Use Cases

• Content Auditing: Analyze image usage, alt text compliance, and accessibility standards
• Media Collection: Gather images from websites for analysis, backup, or processing
• SEO Analysis: Evaluate image optimization, file sizes, and metadata for search engine optimization
• Competitive Research: Monitor competitor image content and visual strategies

Parameters & Configuration

Required Parameters

Parameter	Type	Description	Example
url	string	The target URL from which to extract image information	"https://example.com/gallery"

Optional Parameters

Parameter	Type	Default	Description	Example
includeDataUrls	boolean	false	Include base64 encoded data URLs in results	true
minWidth	number	0	Minimum image width to include in results	100
minHeight	number	0	Minimum image height to include in results	100
maxImages	number	100	Maximum number of images to return	50
includeMetadata	boolean	true	Extract detailed metadata for each image	false
waitForLoad	boolean	true	Wait for lazy-loaded images to appear	true

Advanced Configuration

{
  "url": "https://example.com/gallery",
  "includeDataUrls": false,
  "minWidth": 200,
  "minHeight": 200,
  "maxImages": 50,
  "includeMetadata": true,
  "waitForLoad": true,
  "filterOptions": {
    "excludeFormats": ["gif"],
    "requireAltText": false,
    "minFileSize": 1024
  }
}

Browser API Integration

Required Permissions

Permission	Purpose	Security Impact
activeTab	Access content of the current active tab	Can read all image content and metadata from the active webpage
scripting	Execute content scripts for image discovery	Can run JavaScript to analyze DOM and extract image information

Browser APIs Used

• chrome.tabs API: For navigating to target URLs and accessing page content
• chrome.scripting API: For executing content scripts that scan DOM for image elements
• Image API: For loading images and extracting dimensions and metadata
• Intersection Observer API: For detecting lazy-loaded images that appear on scroll

Cross-Browser Compatibility

Feature	Chrome	Firefox	Safari	Edge
Basic Image Extraction	✅ Full	✅ Full	✅ Full	✅ Full
Lazy Loading Detection	✅ Full	✅ Full	⚠️ Limited	✅ Full
Responsive Images	✅ Full	✅ Full	✅ Full	✅ Full
Metadata Extraction	✅ Full	✅ Full	⚠️ Limited	✅ Full

Security Considerations

• Cross-Origin Images: Some images may be blocked by CORS policies when accessing metadata
• Privacy Protection: Image URLs may contain tracking parameters or personal identifiers
• Content Filtering: Implement filtering to avoid processing inappropriate or copyrighted content
• Rate Limiting: Respect website rate limits when processing multiple images
• Data Usage: Large image collections can consume significant bandwidth and storage

Input/Output Specifications

Input Data Structure

{
  "url": "string",
  "options": {
    "includeDataUrls": "boolean",
    "minWidth": "number",
    "minHeight": "number",
    "maxImages": "number",
    "includeMetadata": "boolean",
    "waitForLoad": "boolean"
  }
}

Output Data Structure

{
  "images": [
    {
      "url": "string",
      "alt": "string",
      "width": "number",
      "height": "number",
      "format": "string",
      "fileSize": "number",
      "isLazyLoaded": "boolean",
      "srcset": "array",
      "metadata": {
        "title": "string",
        "className": "string",
        "id": "string",
        "loading": "string"
      }
    }
  ],
  "totalImages": "number",
  "processedImages": "number",
  "metadata": {
    "url": "string",
    "timestamp": "ISO_8601_string",
    "extractionTime": "number_ms",
    "pageLoadTime": "number_ms"
  }
}
```## Prac

tical Examples

### Example 1: E-commerce Product Image Collection

**Scenario**: Extract all product images from an e-commerce page for inventory analysis and competitive research

**Configuration**:
```json
{
  "url": "https://shop.example.com/category/laptops",
  "minWidth": 300,
  "minHeight": 300,
  "maxImages": 25,
  "includeMetadata": true,
  "waitForLoad": true
}

Input Data:

{
  "url": "https://shop.example.com/category/laptops"
}

Expected Output:

{
  "images": [
    {
      "url": "https://shop.example.com/images/laptop-pro-2024.jpg",
      "alt": "Laptop Pro 2024 - High Performance Computing",
      "width": 800,
      "height": 600,
      "format": "jpeg",
      "fileSize": 125000,
      "isLazyLoaded": true,
      "srcset": [
        "laptop-pro-2024-400w.jpg 400w",
        "laptop-pro-2024-800w.jpg 800w"
      ],
      "metadata": {
        "title": "Laptop Pro 2024",
        "className": "product-image",
        "id": "img-laptop-pro",
        "loading": "lazy"
      }
    }
  ],
  "totalImages": 18,
  "processedImages": 18,
  "metadata": {
    "url": "https://shop.example.com/category/laptops",
    "timestamp": "2024-01-15T10:30:00Z",
    "extractionTime": 450,
    "pageLoadTime": 2800
  }
}

Step-by-Step Process:

1. Navigate to the product category page
2. Wait for lazy-loaded product images to appear
3. Scan DOM for all image elements meeting size criteria
4. Extract metadata including alt text and responsive image sources
5. Return structured image data with comprehensive metadata

Example 2: Website Accessibility Audit

Scenario: Analyze website images for accessibility compliance, checking alt text and image optimization

Configuration:

{
  "url": "https://company.example.com/about",
  "includeDataUrls": false,
  "includeMetadata": true,
  "filterOptions": {
    "requireAltText": true,
    "minFileSize": 0
  }
}

Workflow Integration:

URL Input → Get Images From Link → Accessibility Checker → Compliance Report
     ↓              ↓                      ↓                    ↓
  target_url    image_data          accessibility_data    audit_report

Complete Example: This configuration extracts all images and their accessibility metadata, enabling automated compliance checking for alt text presence, appropriate file sizes, and proper image optimization for web accessibility standards.

Examples

Basic Usage

This example demonstrates the fundamental usage of the GetImagesFromLink node in a typical workflow scenario.

Configuration:

{
  "url": "example_value",
  "followRedirects": true
}

Input Data:

{
  "data": "sample input data"
}

Expected Output:

{
  "result": "processed output data"
}

Advanced Usage

This example shows more complex configuration options and integration patterns.

Configuration:

{
  "parameter1": "advanced_value",
  "parameter2": false,
  "advancedOptions": {
    "option1": "value1",
    "option2": 100
  }
}

Integration Example

Example showing how this node integrates with other workflow nodes:

1. Previous Node → GetImagesFromLink → Next Node
2. Data flows through the workflow with appropriate transformations
3. Error handling and validation at each step

Integration Patterns

Common Node Combinations

Pattern 1: Media Analysis Pipeline

• Nodes: Get Images From Link → Image Analyzer → Content Classifier → Report Generator
• Use Case: Automated analysis of website visual content and media optimization
• Configuration Tips: Set appropriate size filters to focus on significant images, enable metadata for detailed analysis

Pattern 2: Content Migration Workflow

• Nodes: URL List → Get Images From Link → Image Downloader → Asset Organizer
• Use Case: Migrating website images to new platforms or backup systems
• Data Flow: Multiple pages processed, images extracted and downloaded, organized by source and metadata

Best Practices

• Performance: Use size filters to avoid processing decorative icons and small images
• Resource Management: Limit maxImages to prevent overwhelming downstream processing
• Error Handling: Implement fallbacks for images that fail to load or are blocked by CORS
• Accessibility: Always check for alt text presence and quality in accessibility workflows

Troubleshooting

Common Issues

Issue: Missing Lazy-Loaded Images

• Symptoms: Fewer images returned than visible on the page
• Causes: Lazy-loaded images not triggered, insufficient wait time for dynamic loading
• Solutions:
  1. Enable waitForLoad and increase timeout
  2. Implement scroll simulation to trigger lazy loading
  3. Check if images require user interaction to load
• Prevention: Test with pages that have known lazy-loading behavior

Issue: CORS Errors When Accessing Image Metadata

• Symptoms: Images found but metadata extraction fails
• Causes: Cross-origin restrictions preventing access to image properties
• Solutions:
  1. Disable detailed metadata extraction for cross-origin images
  2. Use proxy or server-side processing for metadata extraction
  3. Focus on DOM-available metadata instead of image file properties
• Prevention: Test with same-origin images first, implement graceful degradation

Browser-Specific Issues

Chrome

• Strict CORS policies may prevent access to cross-origin image metadata
• Use appropriate error handling for blocked image resources

Firefox

• Similar CORS restrictions with slightly different error messages
• May require additional permissions for some image processing features

Performance Issues

• Large Image Collections: Pages with hundreds of images may cause memory issues
• High-Resolution Images: Loading metadata for very large images can be slow
• Network Bandwidth: Processing many images simultaneously can consume significant bandwidth

Limitations & Constraints

Technical Limitations

• Cross-Origin Access: Cannot access detailed metadata for images from different domains
• Dynamic Loading: Some images may only load after specific user interactions
• Format Support: Newer image formats may not be fully supported in all browsers

Browser Limitations

• Memory Constraints: Processing very large numbers of images may exceed browser memory limits
• CORS Restrictions: Cross-origin image access limited by browser security policies
• File Size Detection: Accurate file size detection may not be available for all images

Data Limitations

• Metadata Accuracy: Image dimensions and file sizes may be estimates for some formats
• Alt Text Quality: Alt text presence doesn’t guarantee accessibility compliance
• Responsive Images: Complex srcset configurations may not be fully captured

Key Terminology

DOM: Document Object Model - Programming interface for web documents

CORS: Cross-Origin Resource Sharing - Security feature controlling cross-domain requests

CSP: Content Security Policy - Security standard preventing code injection attacks

Browser API: Programming interfaces provided by web browsers for extension functionality

Content Script: JavaScript code that runs in the context of web pages

Web Extraction: Automated extraction of data from websites

Search & Discovery

Keywords

• web extraction
• browser automation
• HTTP requests
• DOM manipulation
• content extraction
• web interaction

Common Search Terms

• “scrape”
• “extract”
• “fetch”
• “get”
• “browser”
• “web”
• “html”
• “text”
• “links”
• “images”
• “api”

Primary Use Cases

• data collection
• web automation
• content extraction
• API integration
• browser interaction
• web extraction

Learning Path

Skill Level: Intermediate

Enhanced Cross-References

Workflow Patterns

• Web Extraction Patterns
• Browser Automation Workflows
• API Integration Patterns

Related Tutorials

• Web Automation Basics
• Advanced Web Extraction

Practical Examples

• Real-World Use Cases
• Integration Examples
• Best Practice Examples

Related Nodes

Similar Functionality

• GetAllTextFromLink: Use when you need different approach to similar functionality
• GetLinksFromLink: Use when you need different approach to similar functionality

Complementary Nodes

• DownloadAsFile: Works well together in workflows
• EditFields: Works well together in workflows
• Filter: Works well together in workflows

Common Workflow Patterns

• GetImagesFromLink → Filter → DownloadAsFile: Common integration pattern
• GetImagesFromLink → EditFields → Http-Request: Common integration pattern

See Also

• Browser Content Extraction
• Web Automation Patterns
• Multi-Node Automation
• Integration Patterns
• Browser Security Guide

Decision Guides:

• Text Extraction Decision Guide

General Resources:

• Workflow Patterns
• Integration Examples
• Node Types Overview

Version History

Current Version: 1.2.0

• Added support for responsive image srcset extraction
• Improved lazy-loading detection with Intersection Observer API
• Enhanced metadata collection including loading attributes

Previous Versions

• 1.1.0: Added file size estimation and format detection
• 1.0.0: Initial release with basic image URL extraction

Additional Resources

• Web Accessibility Guidelines
• Media Processing Workflows
• Image Analysis with AI
• Web Extraction Best Practices

---

Last Updated: October 18, 2024 Tested With: Browser Extension v2.1.0 Validation Status: ✅ Code Examples Tested | ✅ Browser Compatibility Verified | ✅ User Tested