gradio_test.py

import torch
import numpy as np
from PIL import Image
import cv2
import os
import sys
import time
import logging
from pathlib import Path
from typing import Tuple, Dict, List, Optional, Union
import gradio as gr
from huggingface_hub import hf_hub_download
import warnings

warnings.filterwarnings("ignore")

# Detectron2 imports
from detectron2.config import get_cfg
from detectron2.projects.deeplab import add_deeplab_config
from detectron2.data import MetadataCatalog
from detectron2.engine import DefaultPredictor as DetectronPredictor
from detectron2 import model_zoo
from detectron2.utils.visualizer import Visualizer, ColorMode

# OneFormer imports
try:
    from oneformer import (
        add_oneformer_config,
        add_common_config,
        add_swin_config,
        add_dinat_config,
    )
    from demo.defaults import DefaultPredictor as OneFormerPredictor
    ONEFORMER_AVAILABLE = True
except ImportError as e:
    print(f"OneFormer not available: {e}")
    ONEFORMER_AVAILABLE = False

# Setup logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)

########################################
# GLOBAL CONFIGURATIONS
########################################

# Device configuration
DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
CPU_DEVICE = torch.device("cpu")
torch.set_num_threads(4)

# ADE20K class mappings for floor detection
FLOOR_CLASSES = {
    'floor': [3, 4, 13],  # floor, wood floor, rug
    'carpet': [28],       # carpet
    'mat': [78],          # mat
}

# OneFormer configurations
ONEFORMER_CONFIG = {
    "ADE20K": {
        "key": "ade20k",
        "swin_cfg": "configs/ade20k/oneformer_swin_large_IN21k_384_bs16_160k.yaml",
        "swin_model": "shi-labs/oneformer_ade20k_swin_large",
        "swin_file": "250_16_swin_l_oneformer_ade20k_160k.pth",
        "width": 640
    }
}

# Blackspot model configuration for HF Spaces
BLACKSPOT_MODEL_REPO = "sww35/neuronest-blackspot"  # Update with your HF repo
BLACKSPOT_MODEL_FILE = "model_0004999.pth"

########################################
# IMPORT UNIVERSAL CONTRAST ANALYZER
########################################

from universal_contrast_analyzer import UniversalContrastAnalyzer

########################################
# ONEFORMER INTEGRATION
########################################

class OneFormerManager:
    """Manages OneFormer model loading and inference"""

    def __init__(self):
        self.predictor = None
        self.metadata = None
        self.initialized = False

    def initialize(self, backbone: str = "swin"):
        """Initialize OneFormer model"""
        if not ONEFORMER_AVAILABLE:
            logger.error("OneFormer not available")
            return False

        try:
            cfg = get_cfg()
            add_deeplab_config(cfg)
            add_common_config(cfg)
            add_swin_config(cfg)
            add_oneformer_config(cfg)
            add_dinat_config(cfg)

            config = ONEFORMER_CONFIG["ADE20K"]
            cfg.merge_from_file(config["swin_cfg"])
            cfg.MODEL.DEVICE = DEVICE

            # Download model if not exists
            model_path = hf_hub_download(
                repo_id=config["swin_model"],
                filename=config["swin_file"]
            )
            cfg.MODEL.WEIGHTS = model_path
            cfg.freeze()

            self.predictor = OneFormerPredictor(cfg)
            self.metadata = MetadataCatalog.get(
                cfg.DATASETS.TEST_PANOPTIC[0] if len(cfg.DATASETS.TEST_PANOPTIC) else "__unused"
            )
            self.initialized = True
            logger.info("OneFormer initialized successfully")
            return True

        except Exception as e:
            logger.error(f"Failed to initialize OneFormer: {e}")
            return False

    def semantic_segmentation(self, image: np.ndarray) -> Tuple[np.ndarray, np.ndarray]:
        """Perform semantic segmentation"""
        if not self.initialized:
            raise RuntimeError("OneFormer not initialized")

        # Resize image to expected width
        width = ONEFORMER_CONFIG["ADE20K"]["width"]
        h, w = image.shape[:2]
        if w != width:
            scale = width / w
            new_h = int(h * scale)
            image_resized = cv2.resize(image, (width, new_h))
        else:
            image_resized = image

        # Run prediction
        predictions = self.predictor(image_resized, "semantic")
        seg_mask = predictions["sem_seg"].argmax(dim=0).cpu().numpy()

        # Create visualization
        visualizer = Visualizer(
            image_resized[:, :, ::-1],
            metadata=self.metadata,
            instance_mode=ColorMode.IMAGE
        )
        vis_output = visualizer.draw_sem_seg(seg_mask, alpha=0.5)
        vis_image = vis_output.get_image()[:, :, ::-1]  # BGR to RGB

        return seg_mask, vis_image

    def extract_floor_areas(self, segmentation: np.ndarray) -> np.ndarray:
        """Extract floor areas from segmentation"""
        floor_mask = np.zeros_like(segmentation, dtype=bool)
        for class_ids in FLOOR_CLASSES.values():
            for class_id in class_ids:
                floor_mask |= (segmentation == class_id)
        return floor_mask

########################################
# IMPROVED BLACKSPOT DETECTION
########################################

class ImprovedBlackspotDetector:
    """Enhanced blackspot detector that only detects on floor surfaces"""

    def __init__(self, model_path: str = None):
        self.model_path = model_path
        self.predictor = None
        # Expanded floor-related classes in ADE20K
        self.floor_classes = [3, 4, 13, 28, 78]  # floor, wood floor, rug, carpet, mat

    def download_model(self) -> str:
        """Download blackspot model from HuggingFace"""
        try:
            # Try to download from HF repo
            model_path = hf_hub_download(
                repo_id=BLACKSPOT_MODEL_REPO,
                filename=BLACKSPOT_MODEL_FILE
            )
            logger.info(f"Downloaded blackspot model to: {model_path}")
            return model_path
        except Exception as e:
            logger.warning(f"Could not download blackspot model from HF: {e}")
            
            # Fallback to local path
            local_path = f"./output_floor_blackspot/{BLACKSPOT_MODEL_FILE}"
            if os.path.exists(local_path):
                logger.info(f"Using local blackspot model: {local_path}")
                return local_path
            
            return None

    def initialize(self, threshold: float = 0.5) -> bool:
        """Initialize MaskRCNN model"""
        try:
            # Get model path
            if self.model_path is None:
                self.model_path = self.download_model()
                
            if self.model_path is None:
                logger.error("No blackspot model available")
                return False
            
            cfg = get_cfg()
            cfg.merge_from_file(
                model_zoo.get_config_file("COCO-InstanceSegmentation/mask_rcnn_R_50_FPN_3x.yaml")
            )
            cfg.MODEL.ROI_HEADS.NUM_CLASSES = 2  # [floors, blackspot]
            cfg.MODEL.ROI_HEADS.SCORE_THRESH_TEST = threshold
            cfg.MODEL.WEIGHTS = self.model_path
            cfg.MODEL.DEVICE = DEVICE

            self.predictor = DetectronPredictor(cfg)
            logger.info("MaskRCNN blackspot detector initialized")
            return True

        except Exception as e:
            logger.error(f"Failed to initialize blackspot detector: {e}")
            return False

    def is_on_floor_surface(
        self,
        blackspot_mask: np.ndarray,
        segmentation: np.ndarray,
        floor_mask: np.ndarray,
        overlap_threshold: float = 0.8
    ) -> bool:
        """Check if a blackspot is actually on a floor surface"""
        if np.sum(blackspot_mask) == 0:
            return False

        # Check overlap with floor mask
        overlap = blackspot_mask & floor_mask
        overlap_ratio = np.sum(overlap) / np.sum(blackspot_mask)
        if overlap_ratio < overlap_threshold:
            return False

        # Additional check: verify the underlying segmentation class
        blackspot_pixels = segmentation[blackspot_mask]
        if len(blackspot_pixels) == 0:
            return False

        unique_classes, counts = np.unique(blackspot_pixels, return_counts=True)
        floor_pixel_count = sum(
            counts[unique_classes == cls] for cls in self.floor_classes if cls in unique_classes
        )
        floor_ratio = floor_pixel_count / len(blackspot_pixels)
        return floor_ratio > 0.7  # At least 70% on floor classes

    def filter_non_floor_blackspots(
        self,
        blackspot_masks: List[np.ndarray],
        segmentation: np.ndarray,
        floor_mask: np.ndarray
    ) -> List[np.ndarray]:
        """Filter out blackspots that are not on floor surfaces"""
        filtered_masks = []
        for mask in blackspot_masks:
            if self.is_on_floor_surface(mask, segmentation, floor_mask):
                filtered_masks.append(mask)
            else:
                logger.debug(f"Filtered out non-floor blackspot with area {np.sum(mask)}")
        return filtered_masks

    def detect_blackspots(
        self,
        image: np.ndarray,
        segmentation: np.ndarray,
        floor_prior: Optional[np.ndarray] = None
    ) -> Dict:
        """Detect blackspots only on floor surfaces"""
        if self.predictor is None:
            raise RuntimeError("Blackspot detector not initialized")

        original_h, original_w = image.shape[:2]

        if floor_prior is not None and floor_prior.shape != (original_h, original_w):
            floor_prior = cv2.resize(
                floor_prior.astype(np.uint8),
                (original_w, original_h),
                interpolation=cv2.INTER_NEAREST
            ).astype(bool)

        if segmentation.shape != (original_h, original_w):
            segmentation = cv2.resize(
                segmentation.astype(np.uint8),
                (original_w, original_h),
                interpolation=cv2.INTER_NEAREST
            )

        try:
            outputs = self.predictor(image)
            instances = outputs["instances"].to("cpu")
        except Exception as e:
            logger.error(f"Error in MaskRCNN prediction: {e}")
            return self._empty_results(image)

        if len(instances) == 0:
            return self._empty_results(image)

        pred_classes = instances.pred_classes.numpy()
        pred_masks = instances.pred_masks.numpy()
        scores = instances.scores.numpy()

        blackspot_indices = pred_classes == 1
        blackspot_masks = pred_masks[blackspot_indices] if np.any(blackspot_indices) else []
        blackspot_scores = scores[blackspot_indices] if np.any(blackspot_indices) else []

        if floor_prior is not None:
            floor_mask = floor_prior
        else:
            floor_mask = np.zeros(segmentation.shape, dtype=bool)
            for cls in self.floor_classes:
                floor_mask |= (segmentation == cls)

        filtered_blackspot_masks = self.filter_non_floor_blackspots(
            blackspot_masks, segmentation, floor_mask
        )

        combined_blackspot = np.zeros(image.shape[:2], dtype=bool)
        for mask in filtered_blackspot_masks:
            combined_blackspot |= mask

        visualization = self.create_visualization(image, floor_mask, combined_blackspot)

        floor_area = int(np.sum(floor_mask))
        blackspot_area = int(np.sum(combined_blackspot))
        coverage_percentage = (blackspot_area / floor_area * 100) if floor_area > 0 else 0

        return {
            'visualization': visualization,
            'floor_mask': floor_mask,
            'blackspot_mask': combined_blackspot,
            'floor_area': floor_area,
            'blackspot_area': blackspot_area,
            'coverage_percentage': coverage_percentage,
            'num_detections': len(filtered_blackspot_masks),
            'avg_confidence': float(np.mean(blackspot_scores)) if len(blackspot_scores) > 0 else 0.0
        }

    def create_visualization(
        self,
        image: np.ndarray,
        floor_mask: np.ndarray,
        blackspot_mask: np.ndarray
    ) -> np.ndarray:
        """Create clear visualization of blackspots on floors only"""
        vis = image.copy()

        floor_overlay = vis.copy()
        floor_overlay[floor_mask] = [0, 255, 0]
        vis = cv2.addWeighted(vis, 0.7, floor_overlay, 0.3, 0)

        vis[blackspot_mask] = [255, 0, 0]

        blackspot_contours, _ = cv2.findContours(
            blackspot_mask.astype(np.uint8), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE
        )
        cv2.drawContours(vis, blackspot_contours, -1, (255, 255, 0), 2)

        return vis

    def _empty_results(self, image: np.ndarray) -> Dict:
        """Return empty results structure"""
        empty_mask = np.zeros(image.shape[:2], dtype=bool)
        return {
            'visualization': image,
            'floor_mask': empty_mask,
            'blackspot_mask': empty_mask,
            'floor_area': 0,
            'blackspot_area': 0,
            'coverage_percentage': 0,
            'num_detections': 0,
            'avg_confidence': 0.0
        }

########################################
# MAIN APPLICATION CLASS
########################################

class NeuroNestApp:
    """Main application class integrating all components"""

    def __init__(self):
        self.oneformer = OneFormerManager()
        self.blackspot_detector = None
        self.contrast_analyzer = UniversalContrastAnalyzer(wcag_threshold=4.5)
        self.initialized = False

    def initialize(self):
        """Initialize all components"""
        logger.info("Initializing NeuroNest application...")

        oneformer_success = self.oneformer.initialize()

        # Initialize blackspot detector with HF model
        blackspot_success = False
        try:
            self.blackspot_detector = ImprovedBlackspotDetector()
            blackspot_success = self.blackspot_detector.initialize()
        except Exception as e:
            logger.warning(f"Could not initialize blackspot detector: {e}")

        self.initialized = oneformer_success
        return oneformer_success, blackspot_success

    def analyze_image(
        self,
        image_path: str,
        blackspot_threshold: float = 0.5,
        contrast_threshold: float = 4.5,
        enable_blackspot: bool = True,
        enable_contrast: bool = True
    ) -> Dict:
        """Perform complete image analysis"""

        if not self.initialized:
            return {"error": "Application not properly initialized"}

        try:
            image = cv2.imread(image_path)
            if image is None:
                return {"error": "Could not load image"}

            image_rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
            logger.info(f"Loaded image with shape: {image_rgb.shape}")

            results = {
                'original_image': image_rgb,
                'segmentation': None,
                'blackspot': None,
                'contrast': None,
                'statistics': {}
            }

            logger.info("Running semantic segmentation...")
            seg_mask, seg_visualization = self.oneformer.semantic_segmentation(image_rgb)
            results['segmentation'] = {
                'visualization': seg_visualization,
                'mask': seg_mask
            }

            floor_prior = self.oneformer.extract_floor_areas(seg_mask)

            if enable_blackspot and self.blackspot_detector is not None:
                logger.info("Running blackspot detection...")
                try:
                    h_orig, w_orig = image_rgb.shape[:2]
                    h_seg, w_seg = seg_mask.shape
                    if (h_seg, w_seg) != (h_orig, w_orig):
                        seg_mask_resized = cv2.resize(
                            seg_mask.astype(np.uint8),
                            (w_orig, h_orig),
                            interpolation=cv2.INTER_NEAREST
                        )
                    else:
                        seg_mask_resized = seg_mask

                    blackspot_results = self.blackspot_detector.detect_blackspots(
                        image_rgb, seg_mask_resized, floor_prior
                    )
                    results['blackspot'] = blackspot_results
                    logger.info("Blackspot detection completed")
                except Exception as e:
                    logger.error(f"Error in blackspot detection: {e}")
                    results['blackspot'] = None

            if enable_contrast:
                logger.info("Running universal contrast analysis...")
                try:
                    h_seg, w_seg = seg_mask.shape
                    image_for_contrast = cv2.resize(image_rgb, (w_seg, h_seg))
                    contrast_results = self.contrast_analyzer.analyze_contrast(
                        image_for_contrast, seg_mask
                    )
                    results['contrast'] = contrast_results
                    logger.info("Contrast analysis completed")
                except Exception as e:
                    logger.error(f"Error in contrast analysis: {e}")
                    results['contrast'] = None

            stats = self._generate_statistics(results)
            results['statistics'] = stats

            logger.info("Image analysis completed successfully")
            return results

        except Exception as e:
            logger.error(f"Error in image analysis: {e}")
            import traceback
            traceback.print_exc()
            return {"error": f"Analysis failed: {str(e)}"}

    def _generate_statistics(self, results: Dict) -> Dict:
        """Generate comprehensive statistics"""
        stats = {}

        if results['segmentation']:
            unique_classes = np.unique(results['segmentation']['mask'])
            stats['segmentation'] = {
                'num_classes': len(unique_classes),
                'image_size': results['segmentation']['mask'].shape
            }

        if results['blackspot']:
            bs = results['blackspot']
            stats['blackspot'] = {
                'floor_area_pixels': bs['floor_area'],
                'blackspot_area_pixels': bs['blackspot_area'],
                'coverage_percentage': bs['coverage_percentage'],
                'num_detections': bs['num_detections'],
                'avg_confidence': bs['avg_confidence']
            }

        if results['contrast']:
            cs = results['contrast']['statistics']
            stats['contrast'] = {
                'total_segments': cs.get('total_segments', 0),
                'analyzed_pairs': cs.get('analyzed_pairs', 0),
                'low_contrast_pairs': cs.get('low_contrast_pairs', 0),
                'critical_issues': cs.get('critical_issues', 0),
                'high_priority_issues': cs.get('high_priority_issues', 0),
                'medium_priority_issues': cs.get('medium_priority_issues', 0),
                'floor_object_issues': cs.get('floor_object_issues', 0)
            }

        return stats

########################################
# GRADIO INTERFACE
########################################

def create_gradio_interface():
    """Create the Gradio interface"""

    app = NeuroNestApp()
    oneformer_ok, blackspot_ok = app.initialize()

    if not oneformer_ok:
        raise RuntimeError("Failed to initialize OneFormer")

    def analyze_wrapper(
        image_path,
        blackspot_threshold,
        contrast_threshold,
        enable_blackspot,
        enable_contrast
    ):
        """Wrapper function for Gradio interface"""
        if image_path is None:
            return None, None, None, "Please upload an image"

        results = app.analyze_image(
            image_path=image_path,
            blackspot_threshold=blackspot_threshold,
            contrast_threshold=contrast_threshold,
            enable_blackspot=enable_blackspot,
            enable_contrast=enable_contrast
        )

        if "error" in results:
            return None, None, None, f"Error: {results['error']}"

        seg_output = results['segmentation']['visualization'] if results['segmentation'] else None
        blackspot_output = results['blackspot']['visualization'] if results['blackspot'] else None
        contrast_output = results['contrast']['visualization'] if results['contrast'] else None

        if results['contrast']:
            contrast_report = app.contrast_analyzer.generate_report(results['contrast'])
        else:
            contrast_report = "Contrast analysis not performed."

        if results['blackspot']:
            bs = results['blackspot']
            blackspot_report = (
                f"**Floor Area:** {bs['floor_area']:,} pixels  \n"
                f"**Blackspot Area:** {bs['blackspot_area']:,} pixels  \n"
                f"**Coverage:** {bs['coverage_percentage']:.2f}%  \n"
                f"**Detections:** {bs['num_detections']}  \n"
                f"**Average Confidence:** {bs['avg_confidence']:.2f}"
            )
        else:
            blackspot_report = "Blackspot analysis not performed."

        report = generate_comprehensive_report(results, contrast_report, blackspot_report)
        return seg_output, blackspot_output, contrast_output, report

    def generate_comprehensive_report(results: Dict, contrast_report: str, blackspot_report: str) -> str:
        """Generate comprehensive analysis report"""
        report = ["# 🧠 NeuroNest Analysis Report\n"]
        report.append(f"*Generated: {time.strftime('%Y-%m-%d %H:%M:%S')}*\n")

        if results['segmentation']:
            stats = results['statistics'].get('segmentation', {})
            report.append("## 🎯 Object Segmentation")
            report.append(f"- **Classes detected:** {stats.get('num_classes', 'N/A')}")
            report.append(f"- **Resolution:** {stats.get('image_size', 'N/A')}")
            report.append("")

        report.append("## ⚫ Blackspot Analysis")
        report.append(blackspot_report)
        report.append("")

        report.append("## 🎨 Universal Contrast Analysis")
        report.append(contrast_report)
        report.append("")

        report.append("## 📋 Recommendations for Alzheimer's Care")

        has_issues = False

        if results['blackspot'] and results['statistics']['blackspot']['coverage_percentage'] > 0:
            has_issues = True
            report.append("\n### Blackspot Mitigation:")
            report.append("- Replace dark flooring materials with lighter alternatives")
            report.append("- Install additional lighting in affected areas")
            report.append("- Use light-colored rugs or runners to cover dark spots")
            report.append("- Add contrasting tape or markers around blackspot perimeters")

        if results['contrast'] and results['statistics']['contrast']['low_contrast_pairs'] > 0:
            has_issues = True
            report.append("\n### Contrast Improvements:")
            
            # Get specific recommendations based on issue types
            contrast_issues = results['contrast']['issues']
            critical_issues = [i for i in contrast_issues if i['severity'] == 'critical']
            high_issues = [i for i in contrast_issues if i['severity'] == 'high']
            
            if critical_issues:
                report.append("\n**CRITICAL - Immediate attention required:**")
                for issue in critical_issues[:3]:
                    cat1, cat2 = issue['categories']
                    report.append(f"- {cat1.title()} ↔ {cat2.title()}: Increase contrast to 7:1 minimum")
            
            if high_issues:
                report.append("\n**HIGH PRIORITY:**")
                for issue in high_issues[:3]:
                    cat1, cat2 = issue['categories']
                    report.append(f"- {cat1.title()} ↔ {cat2.title()}: Increase contrast to 4.5:1 minimum")
            
            report.append("\n**General recommendations:**")
            report.append("- Paint furniture in colors that contrast with floors/walls")
            report.append("- Add colored tape or markers to furniture edges")
            report.append("- Install LED strip lighting under furniture edges")
            report.append("- Use contrasting placemats, cushions, or covers")

        if not has_issues:
            report.append("\n✅ **Excellent!** This environment appears well-optimized for individuals with Alzheimer's.")
            report.append("No significant visual hazards detected.")

        return "\n".join(report)

    title = "🧠 NeuroNest: AI-Powered Environment Safety Analysis"
    description = """
    **Advanced visual analysis for Alzheimer's and dementia care environments. Texas State CS && Interior Design Dept. - Abheek Pradhan, Dr. Nadim Adi, Dr. Greg Lakomski**

    This system provides:
    - **Object Segmentation**: Identifies all room elements (floors, walls, furniture)
    - **Floor-Only Blackspot Detection**: Locates dangerous dark areas on walking surfaces
    - **Universal Contrast Analysis**: Evaluates visibility between ALL adjacent objects

    *Following WCAG 2.1 guidelines for visual accessibility*
    """

    with gr.Blocks() as interface:
        gr.Markdown(f"# {title}")
        gr.Markdown(description)

        # Information about model availability
        if not blackspot_ok:
            gr.Markdown("""
            ⚠️ **Note:** Blackspot detection model not available. 
            To enable blackspot detection, upload the model to HuggingFace or ensure it's in the local directory.
            """)

        # Top row: toggles and sliders
        with gr.Row():
            enable_blackspot = gr.Checkbox(
                value=blackspot_ok,
                label="Enable Floor Blackspot Detection",
                interactive=blackspot_ok
            )
            blackspot_threshold = gr.Slider(
                minimum=0.1,
                maximum=0.9,
                value=0.5,
                step=0.05,
                label="Blackspot Sensitivity",
                visible=blackspot_ok
            )
            enable_contrast = gr.Checkbox(
                value=True,
                label="Enable Universal Contrast Analysis"
            )
            contrast_threshold = gr.Slider(
                minimum=3.0,
                maximum=7.0,
                value=4.5,
                step=0.1,
                label="WCAG Contrast Threshold"
            )

        # Next row: image upload and analyze button
        with gr.Row():
            with gr.Column():
                image_input = gr.Image(
                    label="📸 Upload Room Image",
                    type="filepath",
                    height=300
                )
            with gr.Column():
                analyze_button = gr.Button(
                    "🔍 Analyze Environment",
                    variant="primary"
                )

        # Next row: segmented, blackspot, and contrast images side by side
        with gr.Row():
            seg_display = gr.Image(
                label="🎯 Segmented Objects",
                height=250,
                interactive=False
            )
            blackspot_display = gr.Image(
                label="⚫ Blackspot Detection",
                height=250,
                interactive=False,
                visible=blackspot_ok
            )
            contrast_display = gr.Image(
                label="🎨 Contrast Analysis",
                height=250,
                interactive=False
            )

        # Bottom: analysis report always visible
        analysis_report = gr.Markdown(
            value="Upload an image and click 'Analyze Environment' to begin."
        )

        analyze_button.click(
            fn=analyze_wrapper,
            inputs=[
                image_input,
                blackspot_threshold,
                contrast_threshold,
                enable_blackspot,
                enable_contrast
            ],
            outputs=[
                seg_display,
                blackspot_display,
                contrast_display,
                analysis_report
            ]
        )

        gr.Markdown("""
            ---
            **NeuroNest** v2.0 - Enhanced with floor-only blackspot detection and universal contrast analysis  
            *Creating safer environments for cognitive health through AI*
            """)

    return interface

########################################
# MAIN EXECUTION
########################################

if __name__ == "__main__":
    print(f"🚀 Starting NeuroNest on {DEVICE}")
    print(f"OneFormer available: {ONEFORMER_AVAILABLE}")

    try:
        interface = create_gradio_interface()
        interface.queue(max_size=10).launch(
            server_name="0.0.0.0",
            server_port=7860,
            share=True
        )
    except Exception as e:
        logger.error(f"Failed to launch application: {e}")
        raise