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The Technology Behind Virtual Try-On

Looksy uses state-of-the-art artificial intelligence to create realistic virtual try-on experiences. Here’s how the technology works.

AI Try-On Technology

Looksy is powered by cutting-edge artificial intelligence and machine learning that transforms how customers shop for apparel online. Our AI models deliver photorealistic virtual try-on results in 15-20 seconds.

How AI Powers Virtual Try-On

Core AI Technologies:

Convolutional Neural Networks (CNNs)

Deep learning models that analyze images, detect features, and understand garment structure

Generative Adversarial Networks (GANs)

AI systems that generate realistic garment renderings adapted to each customer’s body

Computer Vision & Pose Estimation

Advanced algorithms that map body structure, detect poses, and understand spatial relationships

Style Transfer Algorithms

Machine learning techniques that maintain garment patterns, colors, and textures during rendering

AI Model Training

What makes Looksy’s AI accurate:
  • 100+ million parameters: Sophisticated neural networks capable of understanding complex garment-body relationships
  • Millions of training examples: Models trained on diverse datasets of garments, body types, skin tones, and poses
  • Continuous learning: AI improves over time as it processes more try-ons
  • Apparel-specific training: Unlike generic AI, Looksy’s models are trained exclusively on fashion products
Looksy’s AI is continuously updated with new training data to improve accuracy, support more product types, and adapt to fashion trends.

AI vs. Traditional Virtual Try-On

Why AI-powered try-on is superior:
ApproachTraditional (AR Overlay)AI-Powered (Looksy)
RealismBasic overlay, looks fakePhotorealistic rendering
AdaptationNo body-specific fittingAdapts to each body type
SpeedReal-time but low quality15-20 seconds, high quality
Accuracy60-70%90-95%
Garment DetailLimitedPreserves patterns, logos, textures
AI-powered virtual try-on produces realistic previews that help customers make confident purchase decisions, not just basic overlays.

High-Level Overview

1. Image Analysis

AI analyzes the product image and customer selfie

2. Body Mapping

Computer vision identifies body structure and positioning

3. Garment Adaptation

AI adapts the garment to match body shape and pose

4. Realistic Rendering

Advanced rendering creates a photorealistic composite
Total time: 15-20 seconds from upload to result

Step-by-Step Process

Step 1: Customer Uploads Selfie

What happens:
  • Customer clicks “Try On”
  • Takes photo or uploads from library
  • Image is sent securely to Looksy servers
Technical details:
  • Image is compressed for fast upload
  • HTTPS encryption ensures security
  • Original image is not stored after processing

Step 2: Face and Body Detection

What the AI does:
  • Identifies facial landmarks (eyes, nose, mouth)
  • Detects body pose and positioning
  • Measures proportions and dimensions
  • Identifies skin tone and lighting conditions
Technologies used:
  • Convolutional neural networks (CNNs)
  • Facial landmark detection algorithms
  • Pose estimation models
  • Color analysis and tone mapping
Output: Body map with key points and measurements

Step 3: Product Image Analysis

What the AI does:
  • Isolates the garment from background
  • Identifies garment type and structure
  • Detects patterns, colors, and textures
  • Maps neckline, sleeves, and hemline
Technologies used:
  • Semantic segmentation
  • Object detection
  • Texture analysis
  • Edge detection
Output: Garment mask and feature map

Step 4: Garment Adaptation

What the AI does:
  • Adapts garment to match body shape
  • Adjusts proportions for realistic fit
  • Maintains garment characteristics (patterns, logos)
  • Applies perspective and depth
Technologies used:
  • Generative adversarial networks (GANs)
  • Style transfer algorithms
  • 3D pose estimation
  • Geometric transformations
Output: Adapted garment ready for compositing

Step 5: Realistic Rendering

What the AI does:
  • Blends garment with selfie
  • Matches lighting conditions
  • Applies shadows and highlights
  • Ensures natural edges and transitions
Technologies used:
  • Image synthesis
  • Lighting estimation
  • Shadow rendering
  • Color matching
Output: Final photorealistic try-on result
The entire pipeline processes in 15-20 seconds on Looksy’s servers, with no strain on your store or customer devices.

AI Models and Training

Deep Learning Architecture

Model types:
  • Encoder-decoder networks: For image segmentation
  • GANs (Generative Adversarial Networks): For realistic garment rendering
  • CNNs (Convolutional Neural Networks): For feature detection
  • Transformer models: For attention mechanisms
Model size: 100+ million parameters Training data:
  • Millions of garment images
  • Diverse body types and skin tones
  • Various lighting conditions
  • Multiple garment categories
Looksy’s models are continuously updated with new data to improve accuracy and support more product types.

What Makes Looksy’s AI Different

Advantages over competitors:
  1. Apparel-specific training: Models trained exclusively on clothing (not generalized)
  2. Diverse datasets: Inclusive training data across body types and skin tones
  3. Shopify-optimized: Fine-tuned for e-commerce product images
  4. Fast inference: Optimized for 15-20 second rendering
  5. Continuous learning: Models improve over time with usage

Technical Infrastructure

Server Architecture

Where processing happens:
  • All AI processing occurs on Looksy’s cloud servers
  • Not on your Shopify store
  • Not on customer devices
Benefits:
  • No performance impact on your store
  • Consistent experience across devices
  • Access to powerful GPU servers
  • Regular model updates without customer action

Cloud Infrastructure

Stack:
  • GPU-accelerated servers for AI inference
  • Content delivery network (CDN) for fast global access
  • Auto-scaling to handle traffic spikes
  • Multi-region deployment for low latency
Uptime: 99.9% SLA (Pro plan)

Data Flow

1. Customer device → Looksy API (HTTPS)
2. Looksy API → AI processing servers (internal)
3. AI servers → Result generation
4. Result → Customer device (HTTPS)
5. Image deleted (not stored)
Privacy: Customer photos are processed and immediately discarded. Not stored.

Performance Optimization

Speed Optimizations

How we achieve 15-20 second rendering:
  1. Model quantization: Reduced model size without accuracy loss
  2. Batch processing: Efficient GPU utilization
  3. Caching: Product images cached after first use
  4. Edge computing: Processing near user for low latency
  5. Asynchronous operations: Parallel processing where possible

Accuracy vs. Speed Trade-Offs

Our approach:
  • Prioritize speed without sacrificing quality
  • 95%+ accuracy maintained
  • Real-time rendering over perfect detail
  • Good enough to help purchase decisions
If perfect photorealism were required, rendering would take 30+ seconds. Looksy balances accuracy and speed for optimal e-commerce experience.

Handling Edge Cases

Challenging Scenarios

Challenge: Dark, blurry, or angled selfiesHow we handle it:
  • Image enhancement algorithms
  • Brightness and contrast adjustment
  • Noise reduction
  • Pose correction (to extent possible)
Limitation: Very poor selfies may still produce suboptimal results
Challenge: Heavy textures, sheerness, embellishmentsHow we handle it:
  • Texture approximation
  • Pattern preservation
  • Structural understanding
Limitation: Fine details may be simplified
Challenge: Profile views, angled selfiesHow we handle it:
  • 3D pose estimation
  • Perspective adjustment
  • Best-effort garment placement
Note: Works with any angle - the AI adapts to different poses
Challenge: Busy backgrounds, bad lighting, low resolutionHow we handle it:
  • Background removal algorithms
  • Garment isolation
  • Edge refinement
Limitation: Cannot fix fundamentally poor images

Privacy and Security

Data Handling

Customer images:
  • Processed in memory only
  • Never stored to disk
  • Deleted immediately after rendering
  • No usage for training (without explicit consent)
Product images:
  • Cached temporarily for performance
  • Public images (already on your store)
  • Standard retention policies
Compliance:
  • GDPR compliant
  • CCPA compliant
  • SOC 2 Type II certified (Pro plan)

Encryption

In transit:
  • TLS 1.3 encryption
  • HTTPS for all communications
  • Secure API endpoints
At rest:
  • No customer data stored
  • Product images encrypted
  • Database encryption
Looksy is privacy-first. Customer photos are never stored, shared, or used for training without explicit consent.

Future Technology Roadmap

Upcoming Enhancements

Coming Soon:
  • Multi-item try-on (outfit combinations)
  • Enhanced fabric texture rendering
  • AR try-on (live camera mode)
  • 3D garment rotation
  • Custom fit recommendations
  • Virtual fitting room (full outfit try-on)
  • Social try-on features
Roadmap subject to change based on technical feasibility and merchant feedback.

Technical Specifications

API Specifications

Request format:
POST /api/v1/try-on
Content-Type: multipart/form-data

{
  "product_id": "12345",
  "selfie": <image_file>,
  "options": {
    "quality": "high",
    "fast_mode": false
  }
}
Response format:
{
  "success": true,
  "result_url": "https://cdn.looksy.ai/results/abc123.jpg",
  "processing_time_ms": 3421,
  "confidence_score": 0.94
}
Rate limits:
  • Standard: 100 requests/minute
  • Pro: 1,000 requests/minute

Supported Formats

Input images:
  • JPEG, PNG
  • Minimum resolution: 800px
  • Maximum file size: 5MB
  • Color space: RGB
Output images:
  • JPEG (optimized for web)
  • Resolution: matches input (max 2048px)
  • Compression: 85% quality

For Developers

Webhooks

Available events:
  • try_on.started
  • try_on.completed
  • try_on.failed
Webhook payload:
{
  "event": "try_on.completed",
  "timestamp": "2026-01-23T10:30:00Z",
  "data": {
    "try_on_id": "abc123",
    "product_id": "12345",
    "result_url": "https://cdn.looksy.ai/results/abc123.jpg",
    "processing_time_ms": 3421
  }
}

Custom Integrations

Pro plan features:
  • API access for custom implementations
  • Webhook integrations
  • White-label rendering
  • Custom branding
Contact sales@looksy.ai for details.

Common Technical Questions

No. All AI processing happens on Looksy’s cloud servers. Your store only handles displaying the button and result.
Button gracefully degrades. If servers are unreachable, button won’t appear or will show “Try-on temporarily unavailable.” Your store continues working normally.
No. Virtual try-on requires internet connection for processing. The AI runs on cloud servers, not locally.
Auto-scaling infrastructure handles surges automatically. Tested up to 10,000 simultaneous try-ons. No manual intervention needed.

Next Steps