The original Lena image is shown at the top of the figure. …
The original Lena image is shown at the top of the figure. The image at the bottom has been filtered by forming a 22-band modified pyramid SWT and setting some of the subbands to zero. (a) Draw the frequency-domain representation of the 22-band modified pyramid (b) Circle the most likely group of subbands that were set to zero to obtain the filtered image (ignore the color difference in the two images)