From your collection of test images, select two images: one with strong edges of the objects or features present in the image, and the other with weaker definition of edges and features.

Compute the results of application of the 3x3 Prewitt operators for 0, 45, 90, and 135 degrees (see pp 368 - 369 of the textbook).

Compute also the magnitude of the gradient as defined in Equation 5.9.

Find the minimum and maximum values in each result, and map appropriate ranges to the display range in order to visualize the details present in the results.

Study the results obtained and comment upon your findings in relation to the details present in the test images.

Compare the results with those obtained in Lab 4.

MATLAB commands: min(min(x)), max(max(x)), conv2, imshow(x, [x1 x2]).