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This DL project aims at creating a deep learning (DL) model that acts as a personal stylist—recognizing clothes in images, assessing color harmony, and suggesting color-based improvements.

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AI Color Stylist: Deep Learning-Based Fashion Color Harmony Analysis

A state-of-the-art deep learning pipeline that automatically detects clothing items, extracts dominant colors, and provides intelligent color harmony recommendations based on established fashion theory principles.

cub3D Demo Language Graphics

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Table of Contents


Project Overview

This project presents a comprehensive deep learning pipeline for automated fashion color harmony analysis, combining computer vision and color theory to democratize fashion expertise. Our system integrates YOLOv8 segmentation for clothing detection, K-means clustering for color extraction, and rule-based harmony analysis to provide real-time fashion guidance.

Research Paper: AI Color Stylist: Deep Learning-Based Fashion Color Harmony Analysis (Introduction to Deep Learning, May 2025)

The system addresses three core challenges:

  1. Accurate Detection: Precise clothing item detection and segmentation across diverse imagery
  2. Color Extraction: Robust extraction of meaningful color palettes from segmented clothing items
  3. Harmony Assessment: Principled color harmony evaluation based on established fashion theory

Key Features

  • 🎯 Advanced Object Detection: YOLOv8-medium model achieving 79.5% mAP50 for detection and 64.7% mAP50 for segmentation
  • 🎨 Intelligent Color Analysis: K-means clustering in LAB color space with 88% accuracy in dominant color identification
  • 📊 Realistic Harmony Scoring: Produces realistic assessments (20-70% range) avoiding grade inflation common in other systems
  • ⚡ Real-time Performance: 250ms inference time per image on consumer hardware
  • 🔧 Modular Architecture: Easily extensible for texture, style, or occasion-based recommendations
  • 📱 Actionable Recommendations: Specific suggestions for color improvements with fashion-theory backing

Performance Metrics

Metric Detection (Box) Segmentation (Mask)
Precision 78.4% 71.9%
Recall 73.9% 66.1%
mAP50 79.5% 66.8%
mAP50-95 64.7% 45.5%

Processing Speed: 250ms per image (detection + segmentation + color analysis)
Color Extraction Accuracy: 88% in LAB color space
Expert Agreement: 73% agreement on harmony classifications, 81% on recommendations


Installation

Prerequisites

  • Python 3.8+
  • CUDA-compatible GPU (recommended: RTX 3080 or better)
  • 8GB+ VRAM for optimal performance

Setup Instructions

  1. Clone the repository:
git clone https://github.com/voloshynm/Deep_Fashion_Color.git
cd Deep_Fashion_Color
  1. Create and activate virtual environment:
python -m venv venv
source venv/bin/activate  # Linux/macOS
# or
venv\Scripts\activate     # Windows
  1. Install dependencies:
pip install -r requirements.txt
  1. Download pre-trained weights:
# YOLOv8 weights will be downloaded automatically on first run
# Or manually download from: https://github.com/ultralytics/ultralytics
  1. Verify installation:
python -c "import torch; print(f'PyTorch: {torch.__version__}')"
python -c "import ultralytics; print('YOLOv8 ready')"

Step-by-Step Usage Guide

Method 1: Command Line Interface

  1. Prepare your image:

    • Ensure the image contains clearly visible clothing items
    • Supported formats: .jpg, .jpeg, .png
    • Recommended resolution: 256x256 to 2048x2048 pixels
  2. Run the analysis:

python run_analysis.py --image path/to/your/outfit.jpg --output results/
  1. View results:
    • Detection visualization: results/detected_items.jpg
    • Color analysis: results/color_palette.png
    • Harmony report: results/harmony_analysis.json
    • Recommendations: results/recommendations.txt

Method 2: Python Script

  1. Create analysis script:
from src.color_stylist import ColorStylist
from src.utils import load_image, save_results

# Initialize the stylist
stylist = ColorStylist(model_path='models/yolov8m-seg.pt')

# Load and analyze image
image = load_image('path/to/outfit.jpg')
results = stylist.analyze_outfit(image)

# Extract results
detected_items = results['detected_items']
color_harmony = results['harmony_score']
recommendations = results['recommendations']

print(f"Harmony Score: {color_harmony:.1f}%")
print(f"Recommendations: {recommendations}")
  1. Run your script:
python your_analysis_script.py

Method 3: Interactive Jupyter Notebook

  1. Launch notebook:
jupyter notebook examples/interactive_analysis.ipynb
  1. Follow the step-by-step cells:
    • Upload image
    • Run detection
    • Analyze colors
    • View recommendations

Understanding the Output

Detection Results:

  • Bounding boxes around detected clothing items
  • Segmentation masks for precise color extraction
  • Confidence scores for each detection
  • Item categories (shirt, trousers, dress, etc.)

Color Analysis:

  • Dominant colors for each clothing item (up to 5 colors per item)
  • Color names using fashion-specific terminology
  • Color temperature classification (warm/cool/neutral)
  • Percentage coverage of each color

Harmony Assessment:

  • Overall harmony score (0-100%)
  • Detailed breakdown by color theory principles
  • Identification of harmony issues (monotone, clashing, etc.)
  • Specific recommendations for improvement

Sample Output:

=== AI Color Stylist Analysis ===
Detected Items: 3 (shirt, trousers, shoes)
Overall Harmony Score: 42.3%

Issues Identified:
- Monotone palette (too many neutrals)
- Lack of focal point color
- Insufficient contrast

Recommendations:
- Replace gray shirt with coral or teal for better contrast
- Add accent color through accessories
- Consider navy instead of black trousers for softer look

Model Architecture

YOLOv8 Segmentation Model

  • Backbone: CSPDarknet53 feature extractor
  • Architecture: Feature Pyramid Network for multi-scale detection
  • Parameters: 71M parameters (YOLOv8-medium)
  • Specialized heads: Simultaneous bounding box regression, classification, and mask prediction
  • Activation: SiLU activation functions throughout
  • Modern techniques: Attention mechanisms and path aggregation networks

Training Configuration

  • Dataset: DeepFashion2 (491K images, 801K items, 13 categories)
  • Hardware: Optimized for RTX 3080 (8GB VRAM)
  • Batch size: 64, Image resolution: 256×256
  • Optimizer: SGD with momentum 0.937
  • Learning rate: 0.01 with step decay
  • Data augmentation: Mosaic, mixup, color jittering
  • Training time: 38 epochs over 17 hours

Color Extraction Pipeline

  • Algorithm: K-means clustering (k=5) in LAB color space
  • Preprocessing: Shadow/highlight removal, minimum region constraints
  • Color naming: Extended database of 50+ fashion-specific colors
  • Filtering: Brightness thresholds (30-225), minimum 100 pixels, >5% coverage

Color Theory Implementation

Harmony Analysis Principles

Temperature Mixing Assessment:

  • Penalizes excessive mixing of warm and cool colors
  • Identifies temperature conflicts that create visual discord

Monotone/Neutral Detection:

  • Flags outfits composed entirely of neutral colors
  • Encourages visual interest through color variety

Contrast and Saturation Analysis:

  • Ensures sufficient contrast between clothing items
  • Discourages all-dark or all-washed-out combinations

Focal Point Identification:

  • Checks for at least one saturated or bright color
  • Ensures visual anchor points in the outfit

Recommendation Engine

The FixedColorHarmonyAnalyzer class implements:

  • Color classification: Warm, cool, neutral categorization using HSV thresholds
  • Rule-based evaluation: Fashion theory principles application
  • Contextual suggestions: Curated color recommendations (accent colors, versatile neutrals)
  • Actionable feedback: Specific item identification and color alternatives

Technical Implementation

Key Components

# Core classes and modules
src/
├── models/
│   ├── yolo_detector.py      # YOLOv8 clothing detection
│   └── color_extractor.py    # K-means color analysis
├── analysis/
│   ├── harmony_analyzer.py   # Color theory implementation
│   └── recommendation.py     # Styling suggestions
├── utils/
│   ├── preprocessing.py      # Image preprocessing
│   ├── color_utils.py        # Color space conversions
│   └── visualization.py      # Results visualization
└── color_stylist.py          # Main pipeline orchestrator

Color Space Optimization

LAB vs RGB vs HSV Performance:

  • LAB clustering: 88% accuracy (perceptually uniform)
  • RGB clustering: 76% accuracy
  • HSV clustering: 82% accuracy

LAB color space provides superior perceptual uniformity, enabling more meaningful color distances for fashion applications.


Dataset Information

DeepFashion2 Statistics

  • Total images: 491K diverse fashion images
  • Clothing items: 801K annotated items
  • Categories: 13 popular clothing categories
  • Annotations: Bounding boxes, segmentation masks, landmarks, style attributes
  • Split: 80% training (391K images), 20% validation (100K images)
  • Resolution diversity: 128×128 to 2048×2048 pixels
  • Average items per image: 1.6

Class Distribution

Category Instances Performance (mAP50)
Short-sleeved shirt 152K 81%
Trousers 100K+ 79%
Long-sleeved shirt 80K+ 80%
Sling dress 8K 67%

Results and Validation

Detection Performance by Category

  • Short-sleeved shirts: 81% accuracy
  • Trousers: 79% accuracy
  • Long-sleeved shirts: 80% accuracy
  • Dresses: 95% precision, 96% recall
  • Lower performance on rare classes (sling dresses: 67%) due to limited training examples

Color Harmony Validation

  • Expert agreement: 73% on harmony classifications
  • Recommendation agreement: 81% with fashion experts
  • Realistic scoring: Mean score 42.3% (σ=18.7%) addresses grade inflation
  • Processing speed: Consistent 250ms per image across diverse inputs

Comparison with Existing Systems

  • Detection improvement: 79.5% mAP50 vs 36.9% mAP (Mask R-CNN)
  • Real-time performance: 250ms vs >1000ms (two-stage detectors)
  • Realistic scoring: 20-70% range vs 90-100% (grade inflation in competitors)

Future Improvements

Technical Enhancements

  • Texture Analysis: Pattern recognition for richer styling advice
  • 3D Pose Integration: Body-shape-aware recommendations
  • Video Analysis: Real-time styling feedback for virtual try-on
  • Online Learning: Temporal trend adaptation

User Experience

  • Personalization: User preference history integration
  • Cultural Adaptation: Region-specific color preferences
  • Mobile Application: On-the-go styling assistance
  • Virtual Try-on: Integration with AR/VR technologies

Domain Expansion

  • Interior Design: Color harmony for home decoration
  • Graphic Design: Brand color palette optimization
  • Accessibility: Enhanced support for color vision deficiencies

Contributing

We welcome contributions from the community! Here's how you can help:

Ways to Contribute

  • 🐛 Bug Reports: Report issues with detailed reproduction steps
  • 💡 Feature Requests: Suggest new functionality or improvements
  • 🔧 Code Contributions: Submit pull requests for bug fixes or features
  • 📚 Documentation: Improve documentation and examples
  • 🧪 Testing: Add test cases and improve coverage

Development Setup

# Clone and setup development environment
git clone https://github.com/voloshynm/Deep_Fashion_Color.git
cd Deep_Fashion_Color
pip install -e .
pip install -r requirements-dev.txt

# Run tests
python -m pytest tests/

# Code formatting
black src/
flake8 src/

Contribution Guidelines

  1. Fork the repository
  2. Create a feature branch (git checkout -b feature/amazing-feature)
  3. Commit your changes (git commit -m 'Add amazing feature')
  4. Push to the branch (git push origin feature/amazing-feature)
  5. Open a Pull Request

Citation

If you use this work in your research, please cite our paper:

@article{voloshyn2025aicolorstylist,
  title={AI Color Stylist: Deep Learning-Based Fashion Color Harmony Analysis},
  author={Voloshyn, Maksym},
  journal={Introduction to Deep Learning},
  year={2025},
  month={May},
  institution={University of Luxembourg}
}

Related Work Citations

@inproceedings{ge2019deepfashion2,
  title={DeepFashion2: A versatile benchmark for detection, pose estimation, segmentation and re-identification of clothing images},
  author={Ge, Yuying and Zhang, Ruimao and Wu, Lingyun and Wang, Xiaogang and Tang, Xiaoou and Luo, Ping},
  booktitle={CVPR},
  year={2019}
}

@article{ultralytics2023yolov8,
  title={YOLOv8: A new state-of-the-art computer vision model},
  author={Ultralytics},
  year={2023}
}

License

This project is licensed under the University of Luxembourg License. See the LICENSE file for details.

Academic Use

  • ✅ Research and educational purposes
  • ✅ Non-commercial applications
  • ✅ Citation required for publications

Commercial Use

  • 📧 Contact for commercial licensing
  • 💼 Enterprise solutions available
  • 🤝 Collaboration opportunities welcome

Acknowledgments

  • University of Luxembourg - Academic support and resources
  • DeepFashion2 Team - Comprehensive fashion dataset
  • Ultralytics - YOLOv8 implementation and support
  • Fashion Theory Researchers - Color harmony principles and validation

Contact

Author: Maksym Voloshyn
Email: maksym.voloshyn.002@student.uni.lu
Institution: University of Luxembourg
Course: Introduction to Deep Learning (May 2025)

Project Links:


Created with ❤️ for fashion and AI enthusiasts. Democratizing fashion expertise through deep learning.

Keywords: deep-learning computer-vision fashion-ai color-theory yolov8 segmentation style-recommendation pytorch fashion-technology

About

This DL project aims at creating a deep learning (DL) model that acts as a personal stylist—recognizing clothes in images, assessing color harmony, and suggesting color-based improvements.

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