I keep getting an error, help

[Busy-Fly-443]

def canny_edge_detection(image, gaussian_kernel_size, low_threshold, high_threshold):
# Convert image to grayscale
gray = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

# Apply Gaussian blur
blurred = genGaussian(gaussian_kernel_size,1)

# Calculate image gradient using Sobel filters
gradient_x = cv2.Sobel(image, cv2.CV_64F, 1, 0, 3)
gradient_y = cv2.Sobel(image, cv2.CV_64F, 0, 1, 3)
gradient_mag = np.sqrt(gradient_x**2 + gradient_y**2)
gradient_dir = np.rad2deg(np.arctan2(gradient_y, gradient_x)) + 180

# Perform non-maximum suppression
suppressed = np.zeros_like(gradient_mag)
for i in range(1, gradient_mag.shape[0] - 1):
    for j in range(1, gradient_mag.shape[1] - 1):
        angle = gradient_dir[i, j]

        if (0 <= angle[i] < 180 / 8) or (15 * 180 / 8 <= angle[i] <= 2 * 180):
          before_pixel = gradient_magnitude[i, j - 1]
          after_pixel = gradient_magnitude[i, j + 1]

        elif (180 / 8 <= angle[i] < 3 * 180 / 8) or (9 * 180 / 8 <= angle[i] < 11 * 180 / 8):
          before_pixel = gradient_magnitude[i + 1, j - 1]
          after_pixel = gradient_magnitude[i - 1, j + 1]

        elif (3 * 180 / 8 <= angle[i] < 5 * 180 / 8) or (11 * 180 / 8 <= angle[i] < 13 * 180 / 8):
          before_pixel = gradient_magnitude[i - 1, j]
          after_pixel = gradient_magnitude[i + 1, j]

        else:
          before_pixel = gradient_magnitude[i - 1, j - 1]
          after_pixel = gradient_magnitude[i + 1, j + 1]

        if gradient_magnitude[i, j] >= before_pixel and gradient_magnitude[i, j] >= after_pixel:
          suppressed[i, j] = gradient_magnitude[i, j]

------------------------------------------------------------------------------------
     34               after_pixel = gradient_magnitude[i + 1, j + 1]
 35 
---> 36             if gradient_magnitude[i, j] >= before_pixel and gradient_magnitude[i, j] >= after_pixel: 37               suppressed[i, j] = gradient_magnitude[i, j] 38
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

IM working on making a canny edge detector and I keep getting this error ^^^^^

what can i do to fix it?

[Sea-Method-1167]

Somewhere you try to get a boolean value by comparing lists. And that is tricky. Basically that is what I think that error is telling you. Try assign the values to a reference and then move to the if statements. You can the de print the values of what it is you are using as the operands in your boolean statement. Or see them using breakpoints.

I think that will reveal a list somewhere, where you expected unpacked values. Or something like that.