Use the Lena image for this assignment.

2. Use a method discussed in class to find all the vertical lines in the image. What size of the kernel did you pick and why. 

3. Use the Gaussian operator and the Sobel operator to transform the image. What is the effect of these filters? 

4. Transform the input image using full-frame histogram equalization. Present the histogram of the input image, the CDF of the input image, the histogram of the output image, the CDF of the output image, as well as the output image. 

5. Transform the given input image using 11x11, 41x41 local area histogram enhancement. Use the method of updating the histogram at each position or the processing will take a very long time. 

6. Comment on the image enhancement – which features are enhanced by which local area method and why.

7. Present the histogram of each of these locally transformed images. Are they flat? (why / why not)
MATLAB CODE