Blocks ReferenceComputer vision
Image Classifier
Classify images into predefined categories using deep learning models.
Image Classifier Block
A block that can be used for Image Classification using deep learning.
Overview
The Image Classifier block leverages deep learning models to automatically classify images into predefined categories. It's designed to handle various image types and provides accurate classification results with confidence scores.
Configuration Options
Model Configuration
Choose the classification model to use:
- Pre-trained Models: Use existing trained models for common classification tasks
- Custom Models: Upload and use your own trained models
- Model Categories: Select from available model categories (objects, scenes, faces, etc.)
Classification Settings
- Confidence Threshold: Minimum confidence score for classification results
- Top-K Results: Number of top classification results to return
- Batch Processing: Process multiple images simultaneously
- Output Format: Choose output format (JSON, CSV, etc.)
Image Processing
- Image Preprocessing: Apply preprocessing steps (resize, normalize, etc.)
- Input Format: Supported image formats (JPEG, PNG, TIFF, etc.)
- Color Space: Handle different color spaces (RGB, grayscale, etc.)
- Image Quality: Optimize for different image qualities
How It Works
The Image Classifier block:
- Receives Image: Gets image data from input message
- Preprocesses Image: Applies necessary preprocessing steps
- Runs Classification: Uses deep learning model to classify the image
- Returns Results: Sends classification results with confidence scores
Classification Flow
Image Input → Preprocessing → Model Inference → Classification ResultsUse Cases
Content Moderation
Classify images for content moderation:
image input → Image Classifier → classification → moderation decisionMedical Imaging
Classify medical images for diagnosis:
medical image → Image Classifier → diagnosis category → medical analysisQuality Control
Classify products for quality control:
product image → Image Classifier → quality category → quality decisionDocument Classification
Classify document types:
document image → Image Classifier → document type → routingCommon Patterns
Basic Image Classification
// Configuration
Model: Pre-trained Object Classification
Confidence Threshold: 0.8
Top-K Results: 3
Output Format: JSON
// Input: Image data
// Output: {
// classifications: [
// { label: "cat", confidence: 0.95 },
// { label: "dog", confidence: 0.03 },
// { label: "bird", confidence: 0.02 }
// ]
// }Batch Image Processing
// Configuration
Model: Custom Product Classification
Batch Processing: true
Batch Size: 10
Confidence Threshold: 0.7
// Input: Array of images
// Output: Array of classification resultsMulti-Class Classification
// Configuration
Model: Scene Classification
Categories: ["indoor", "outdoor", "urban", "natural"]
Confidence Threshold: 0.6
Output Format: Structured
// Input: Scene image
// Output: {
// primary_class: "outdoor",
// confidence: 0.89,
// all_classes: {
// "outdoor": 0.89,
// "natural": 0.78,
// "urban": 0.12,
// "indoor": 0.01
// }
// }Advanced Features
Custom Model Support
Upload and use custom trained models:
- Model Upload: Upload your own trained models
- Model Validation: Validate model compatibility and performance
- Model Management: Manage multiple models for different tasks
- Model Versioning: Track and manage model versions
Real-time Processing
Handle real-time image classification:
- Streaming Support: Process image streams in real-time
- Low Latency: Optimize for minimal processing delay
- Scalability: Handle high-volume image processing
- Resource Management: Efficient resource utilization
Advanced Analytics
Comprehensive classification analytics:
- Confidence Analysis: Detailed confidence score analysis
- Error Analysis: Identify and analyze classification errors
- Performance Metrics: Track model performance over time
- Bias Detection: Detect and report potential model bias
Configuration Examples
Object Detection and Classification
// Configuration
Model: YOLO Object Detection
Confidence Threshold: 0.7
Output Format: JSON with bounding boxes
Batch Processing: false
// Use case: Detect and classify objects in imagesMedical Image Analysis
// Configuration
Model: Medical Image Classification
Categories: ["normal", "abnormal", "critical"]
Confidence Threshold: 0.9
Output Format: Medical report format
// Use case: Classify medical images for diagnosisContent Moderation
// Configuration
Model: Content Moderation
Categories: ["safe", "unsafe", "review_required"]
Confidence Threshold: 0.8
Batch Processing: true
// Use case: Automatically moderate image contentTips
- Choose Appropriate Models: Select models that match your specific use case
- Set Confidence Thresholds: Adjust thresholds based on your accuracy requirements
- Preprocess Images: Ensure images are properly preprocessed for optimal results
- Monitor Performance: Track classification accuracy and model performance
- Handle Edge Cases: Consider how to handle unusual or problematic images
- Optimize for Scale: Use batch processing for high-volume scenarios
Common Issues
Low Classification Accuracy
Issue: Poor classification results
Solution: Check image quality, preprocessing, and model selectionSlow Processing
Issue: Classification takes too long
Solution: Optimize image preprocessing and use batch processingMemory Issues
Issue: Out of memory errors with large images
Solution: Implement image resizing and batch processingModel Compatibility
Issue: Model not working with certain image formats
Solution: Check model requirements and image preprocessingPerformance Considerations
Model Selection
- Accuracy vs Speed: Balance between classification accuracy and processing speed
- Resource Requirements: Consider CPU/GPU memory and processing requirements
- Model Size: Larger models may provide better accuracy but require more resources
Optimization Strategies
- Image Resizing: Resize images to optimal dimensions for the model
- Batch Processing: Process multiple images together for better efficiency
- Caching: Cache model results for repeated classifications
- Parallel Processing: Use multiple processing threads for better performance
Related Blocks
- Image Processor - For image preprocessing and enhancement
- Object Detector - For detecting objects in images
- OCR - For extracting text from images
- debug - For monitoring classification results