import cv2

# Load the image
img = cv2.imread('flower.jpg')

# Create a resizable window
cv2.namedWindow("image", cv2.WINDOW_NORMAL)

# Set the window size to a smaller size
cv2.resizeWindow("image", 1600, 900)  # Set the window size to 1600x900

# User-defined constants
a = 1.0  # Contrast control (1.0 keeps it unchanged)
b = 70   # Brightness control (positive value to increase brightness)

# Apply the brightness formula
img_processed = cv2.convertScaleAbs(img, alpha=a, beta=b)

# Save or display the result
cv2.imwrite('flower_brightened.jpg', img_processed)

# Display the image
cv2.imshow("image", img_processed)

# cv2.waitKey(0)

while True:
    key = cv2.waitKey(1) & 0xFF
    if key == 27:  # Exit on 'ESC' key
        break
    if cv2.getWindowProperty("image", cv2.WND_PROP_VISIBLE) < 1:  # Close on window close button
        break

cv2.destroyAllWindows()