diff --git a/threshold.py b/threshold.py
new file mode 100644
index 0000000..6c6f405
--- /dev/null
+++ b/threshold.py
@@ -0,0 +1,54 @@
+import cv2
+import numpy as np
+import os
+from matplotlib import pyplot as plt
+
+# Function to process each image
+def process_image(image_path, output_folder):
+    image = cv2.imread(image_path)
+    
+    # Convert BGR to RGB
+    image_rgb = cv2.cvtColor(image, cv2.COLOR_BGR2RGB)
+    
+    # Define color range
+    lower_bound = np.array([50, 70, 30], dtype=np.uint8)
+    upper_bound = np.array([150, 255, 150], dtype=np.uint8)
+    
+    # Create mask
+    mask = cv2.inRange(image_rgb, lower_bound, upper_bound)
+    
+    # Create an output 
+    output_image = np.zeros_like(image_rgb)
+    output_image[mask != 0] = (255, 255, 255)
+    
+    # Convert to grayscale
+    output_gray = cv2.cvtColor(output_image, cv2.COLOR_RGB2GRAY)
+    
+    # Convert grayscale image to binary
+    _, binary = cv2.threshold(output_gray, 1, 255, cv2.THRESH_BINARY)
+    
+    # Define output filename
+    filename = os.path.splitext(os.path.basename(image_path))[0]
+    output_filename = f"{filename}_green_yellow.png"
+    output_path = os.path.join(output_folder, output_filename)
+    
+    # Save processed image
+    cv2.imwrite(output_path, binary)
+    print(f"Processed: {image_path} -> {output_path}")
+
+# Function to process all images in folder
+def process_images_in_folder(input_folder, output_folder):
+    os.makedirs(output_folder, exist_ok=True)
+    
+    # Loop through images in the input folder
+    for filename in os.listdir(input_folder):
+        if filename.lower().endswith((".jpg", ".jpeg", ".png")):
+            image_path = os.path.join(input_folder, filename)
+            process_image(image_path, output_folder)
+
+# Set input and output folders
+input_folder = "in"
+output_folder = "out"
+
+# Run the processing
+process_images_in_folder(input_folder, output_folder)
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