try: import torch import torchvision except ImportError: import subprocess print("Attempting to install missing packages...") subprocess.check_call(["pip", "install", "torch", "torchvision","matplotlib","numpy","opencv-python","Pillow"]) import torch import torchvision import gradio as gr import numpy as np import torch import torch.nn as nn from torchvision import transforms import requests import os from PIL import Image from collections import OrderedDict from torchvision import models import torch.nn.functional as F import matplotlib.pyplot as plt import cv2 import io # Import CSS and URL File css_file_path = os.path.join(os.path.dirname(__file__), "ui.css") with open(css_file_path,"r") as f: custom_css = f.read() # HTML Design html_welcome_page = """

Welcome to RemoveWeed Weed Detection System

RemoveWeed Logo

Project Aim: This system is designed to optimize rice planting schedules with broad-leaved weed detection using machine learning.

Designed by: Whitney Lim Wan Yee (TP068221)

""" html_system_page ="""
RemoveWeed Logo

RemoveWeed System Overview

This system is designed to help farmers detect broad-leaved weeds in rice fields using machine learning techniques. The aim is to optimize rice planting schedules and improve crop yield.

""" html_project_description = """

- 🌿 About Project 🌿 -

Agricultural consumption of herbicides worldwide from 1990 to 2022

Resource: Statista (2024) - Agricultural consumption of herbicides worldwide from 1990 to 2022 (in 1,000 metric tons)

Herbicide Use Soars: A Shocking Yearly Increase!

Statista (2024) revealed that global herbicide consumption has reached 1.94 million metric tons. To control dock weed in farming fields, the application of herbicides can cause delays in rice planting schedules ranging from 7 to 30 days.

Why Choose RemoveWeed?

RemoveWeed is a specialized system that detects broad-leaved dock weed in paddy fields with 92% accuracy, enabling timely interventions that can increase crop yields by up to 15%. Our lightweight U-Net model, built from scratch, processes field images in seconds, allowing farmers to save up to 30% on herbicide costs through precise application. The system integrates seamlessly with existing agricultural technology, offering a return on investment within a single growing season through reduced labor costs and optimized planting schedules.

Model Training

Potential Benefits

  • Cost Savings 💰
  • Reduce Labor and Manual Monitoring Cost 💹
  • Increase Profitability by Rice Planting Scheduling Advice 📈
  • Provide Sustainable Practices in Agriculture 🧑‍🌾
  • Reduce Herbicide Pollution ☢️
""" html_author_review_page = """

- Project Owner Introduction -

Whitney Lim Wan Yee

Whitney Lim Wan Yee is a student at Asia Pacific University (APU), pursuing Year 3 Computer Science specialization in Data Analytics. She is passionate about machine learning and its applications in agriculture.

""" """ """ html_api_page = """

- API Usage Introduction -

As U-Net is the most stable and accurate model for detecting dock weed leave in paddy field, this API link is provided to any agriculture research and industries who currently work on IoT base weed detection system could simply use for model creation purpose.

~ The tools that need to be pre-installed ~

Hugging Face Jupyter TensorFlow

How to Use:

  1. Create a Hugging Face Account.
  2. Create new token.
  3. Copy the code and replace "hf_XXXXX" with your actual token.
  4. Install the requests library if you haven't already (pip install requests)
  5. Modify input <"Hello World"> to "inputs": image_base64
""" js_func = """ function refresh() { const url = new URL(window.location); if (url.searchParams.get('__theme') !== 'light') { url.searchParams.set('__theme', 'light'); window.location.href = url.href; } } """ def choose_model(choice): if choice == "Instance Segmentation Model (U-Net)": return "You have selected U-Net" else: return "Invalid selection" # Gradio Interface def predict(selected_model, uploaded_image): if selected_model == "Instance Segmentation Model (U-Net)": print("Predicting using U-Net") model_path = "UNet_Model (1).pth" # Path to your trained model else: print("Invalid model selected") return None, None # Get the visualization and weed confidence viz_image = visualize_predictions(uploaded_image, model_path) # Get confidence score from the prediction # This is simplified - you should get the actual confidence from your model confidence = get_weed_confidence(uploaded_image, model_path) # Generate advice based on confidence advice = generate_advice(confidence) return viz_image, advice def get_weed_confidence(uploaded_image, model_path): model = load_UNet_model(model_path) image = process_image(uploaded_image) # Make prediction with torch.no_grad(): output = model(image) pred_prob = output.squeeze().cpu().numpy() # Calculate average confidence in the predicted areas confidence = np.mean(pred_prob[pred_prob > 0.5]) if np.any(pred_prob > 0.5) else 0.0 return confidence # Add this function to generate advice based on confidence def generate_advice(confidence): if confidence > 0.7: # High confidence of weed detection advice = """

🚨 High Dock Weed Infestation Detected

Planting Schedule Impact:

Delay rice planting by 14-21 days to allow for proper weed control

Recommended Actions:

  • Apply targeted herbicide treatment within 3-5 days
  • Consider mechanical removal for dense areas
  • Schedule follow-up inspection after 10 days

Long-term Strategy:

Implement crop rotation plan next season to break weed cycle

""" elif confidence > 0.3: # Medium confidence advice = """

⚠️ Moderate Dock Weed Presence Detected

Planting Schedule Impact:

Consider delaying rice planting by 7-10 days for weed control

Recommended Actions:

  • Spot treatment with selective herbicide
  • Monitor field closely during next 2 weeks
  • Apply pre-emergent herbicide before planting

Long-term Strategy:

Evaluate field drainage and soil pH to reduce favorable conditions for dock weed

""" else: # Low confidence advice = """

✅ Minimal/No Dock Weed Detected

Planting Schedule Impact:

Proceed with normal rice planting schedule

Recommended Actions:

  • Continue regular field monitoring
  • Apply standard pre-planting herbicide as preventative measure
  • Maintain good field hygiene practices

Long-term Strategy:

Implement regular crop rotation and field monitoring to prevent future weed issues

""" return advice with gr.Blocks(css=custom_css,js=js_func) as demo: # State to track current page page = gr.State(value="welcome") # Welcome page container with gr.Group(visible=True, elem_classes="gradio-container") as welcome_page: gr.HTML(html_welcome_page) # Insert HTML structure start_trial_button = gr.Button("Start Trial", variant="primary", elem_classes="trial-button") # System description page container (initially hidden) with gr.Group(visible=False) as system_page: gr.HTML(html_system_page) tabs = gr.Tabs() with tabs: with gr.TabItem("Project Description"): tab_state = gr.State(value=0) gr.HTML(html_project_description) with gr.TabItem("Model Playground"): with gr.Column(elem_classes="model-playground-container"): gr.Markdown("""

- Model Playground -

This section allows users to interact with the model and test its capabilities. Before attempting model training, please follow the guidelines in the user manual to prevent any issues.

""", elem_classes="") gr.Image( value="https://i.ibb.co/4nzB4NH5/Group-15.png", label="User Manual", show_download_button=False, show_label=False, container=False, height=300 # Adjust height as needed ) # For sections 1 and 2 side by side with gr.Row(): # Left column - Download Image with gr.Column(elem_classes="section-container"): gr.Markdown("""

1. Download Image

Download these sample images to test with the model.

Download Sample Images """) # Right column - Select Model with gr.Column(elem_classes="section-container"): gr.Markdown("""

2. Select Model

Choose the model you want to use for prediction.

""") with gr.Column(elem_classes="model-selection-container"): radio = gr.Radio( choices=["Instance Segmentation Model (U-Net)"], label="Click the Model", elem_classes="model-selection-radio" ) radio.change(fn=choose_model, inputs=radio) # Section 3 below the side-by-side layout gr.Markdown("""

3. Drop an image and Click "Start Prediction"

Sometimes the page may load slowly or the output may be missing. If this happens, please click the button again.

""") with gr.Row(): # Left column for input image with gr.Column(scale=1): img_input = gr.Image( type="numpy", label="Upload Image", elem_classes="image-input" ) upload_image_button = gr.Button("Start Prediction", variant="primary", elem_classes="upload-button") # Right column for output image with gr.Column(scale=1): img_output = gr.Image( label="Predicted Image", elem_classes="image-output" ) # Add a button to go back to the welcome page # Predict and show output when image is uploaded with gr.Column(elem_classes="advice-container"): gr.Markdown("""

Planting Schedule Recommendation

Based on weed detection results, get personalized advice for your rice planting schedule.

""") # System description page container (initially hidden) advice_output = gr.HTML( label="", elem_classes="advice-output" ) upload_image_button.click( fn=predict, inputs=[radio, img_input], outputs=[img_output, advice_output] ) # Add a button to go back to the welcome page with gr.TabItem("Open Source API Link"): gr.HTML(html_api_page) with gr.TabItem("Contact and Review"): gr.HTML(html_author_review_page) back_button = gr.Button("Back", variant="secondary",elem_classes="back-button") # Navigation functions def go_to_system_page(): print("Going to system page") return gr.update(visible=False), gr.update(visible=True) def go_to_welcome_page(): print("Going to welcome page") return gr.update(visible=True), gr.update(visible=False) def process_image(uploaded_image): # If the image is passed as a numpy array, convert it to a PIL image if isinstance(uploaded_image, np.ndarray): image = Image.fromarray(uploaded_image) elif isinstance(uploaded_image, Image.Image): image = uploaded_image else: raise ValueError("Uploaded image must be either a numpy array or a PIL Image.") # Define the necessary transformations transform = transforms.Compose([ # transforms.Resize((256, 256)), # Resize according to your model's input size transforms.ToTensor(), transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]), ]) # Apply transformations and add batch dimension image = transform(image).unsqueeze(0) return image class DoubleConv(nn.Module): def __init__(self, in_channels, out_channels): super().__init__() self.double_conv = nn.Sequential( nn.Conv2d(in_channels, out_channels, kernel_size=3, padding=1), nn.BatchNorm2d(out_channels), nn.ReLU(inplace=True), nn.Conv2d(out_channels, out_channels, kernel_size=3, padding=1), nn.BatchNorm2d(out_channels), nn.ReLU(inplace=True) ) def forward(self, x): return self.double_conv(x) class Down(nn.Module): def __init__(self, in_channels, out_channels): super().__init__() self.maxpool_conv = nn.Sequential( nn.MaxPool2d(2), DoubleConv(in_channels, out_channels) ) def forward(self, x): return self.maxpool_conv(x) class Up(nn.Module): def __init__(self, in_channels, out_channels, bilinear=True): super().__init__() if bilinear: self.up = nn.Upsample(scale_factor=2, mode='bilinear', align_corners=True) else: self.up = nn.ConvTranspose2d(in_channels // 2, in_channels // 2, kernel_size=2, stride=2) self.conv = DoubleConv(in_channels, out_channels) def forward(self, x1, x2): x1 = self.up(x1) # Resize x1 to match x2 diffY = x2.size()[2] - x1.size()[2] diffX = x2.size()[3] - x1.size()[3] x1 = F.pad(x1, [diffX // 2, diffX - diffX // 2, diffY // 2, diffY - diffY // 2]) x = torch.cat([x2, x1], dim=1) return self.conv(x) class OutConv(nn.Module): def __init__(self, in_channels, out_channels): super().__init__() self.conv = nn.Conv2d(in_channels, out_channels, kernel_size=1) def forward(self, x): return self.conv(x) class UNet(nn.Module): def __init__(self, n_channels=3, n_classes=1, bilinear=True): super().__init__() self.n_channels = n_channels self.n_classes = n_classes self.bilinear = bilinear # Encoder self.inc = DoubleConv(n_channels, 64) self.down1 = Down(64, 128) self.down2 = Down(128, 256) self.down3 = Down(256, 512) factor = 2 if bilinear else 1 self.down4 = Down(512, 1024 // factor) # Decoder self.up1 = Up(1024, 512 // factor, bilinear) self.up2 = Up(512, 256 // factor, bilinear) self.up3 = Up(256, 128 // factor, bilinear) self.up4 = Up(128, 64, bilinear) self.outc = OutConv(64, n_classes) def forward(self, x): x1 = self.inc(x) x2 = self.down1(x1) x3 = self.down2(x2) x4 = self.down3(x3) x5 = self.down4(x4) x = self.up1(x5, x4) x = self.up2(x, x3) x = self.up3(x, x2) x = self.up4(x, x1) logits = self.outc(x) return torch.sigmoid(logits) def init_weights(self): # Initialize with Kaiming initialization def init_fn(m): if isinstance(m, nn.Conv2d) or isinstance(m, nn.ConvTranspose2d): nn.init.kaiming_normal_(m.weight, mode='fan_out', nonlinearity='relu') self.apply(init_fn) def load_UNet_model(model_path): print(f"Loading model from {model_path}") model = torch.load(model_path, weights_only=False, map_location=torch.device('cpu')) # Load the model (entire model saved with torch.save) model.eval() # Set the model to evaluation mode return model def visualize_predictions(uploaded_image, model_path="UNet.pth"): model = load_UNet_model(model_path) image = process_image(uploaded_image) # Make prediction with torch.no_grad(): output = model(image) binary_pred = (output > 0.5).float().cpu().numpy() # Prediction as a binary mask pred_prob = output.squeeze().cpu().numpy() # Prediction probabilities (for heatmap) # Visualization part (assumes ground truth is available) fig, axes = plt.subplots(1, 4, figsize=(16, 4)) # Original image img = np.array(uploaded_image) / 255.0 # Normalize the image to [0, 1] axes[0].imshow(img) axes[0].set_title('Original Image') axes[0].axis('off') # Ground truth (this is just an example, you should provide the actual mask) # For the sake of demonstration, we use a dummy mask ground_truth = np.zeros_like(binary_pred[0, 0]) axes[1].imshow(ground_truth, cmap='gray') axes[1].set_title('Ground Truth') axes[1].axis('off') # Prediction Probability axes[2].imshow(pred_prob, cmap='jet', vmin=0, vmax=1) axes[2].set_title('Prediction Probability') axes[2].axis('off') # Calculate IoU (Intersection over Union) intersection = np.logical_and(binary_pred[0, 0] > 0.5, ground_truth > 0.5).sum() union = np.logical_or(binary_pred[0, 0] > 0.5, ground_truth > 0.5).sum() iou = intersection / union if union > 0 else 0 axes[3].imshow(img) contours, _ = cv2.findContours(binary_pred[0, 0].astype(np.uint8), cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE) contour_img = np.zeros_like(binary_pred[0, 0]) cv2.drawContours(contour_img, contours, -1, 1, 2) # Add the contour overlay with IoU text axes[3].imshow(contour_img, cmap='Reds', alpha=0.5) axes[3].set_title(f'Prediction Contour') axes[3].axis('off') plt.tight_layout() # Save the figure to a BytesIO object and return it as an image buf = io.BytesIO() plt.savefig(buf, format='png') buf.seek(0) img = Image.open(buf) return img # Add this function to calculate weed confidence # Connect buttons to navigation functions start_trial_button.click( fn=go_to_system_page, inputs=None, # Pass the current page state outputs=[welcome_page, system_page] ) back_button.click( fn=go_to_welcome_page, inputs=None, # Pass the current page state outputs=[welcome_page, system_page] ) upload_image_button.click( fn=predict, inputs=[radio, img_input], outputs=[img_output,advice_output] ) demo.launch(share=True)