Assignment 9 question 5

Take the images from Assignment 6 number #3 part (c)
and turn them into a greyscale image with only 16 intensity values. Use values
between 0 and 240 but that are divisible by 16.

>> B = togray(bluelines);
>> C = floor(B/16)*16;
>> imshow(C/255)

>> B = togray(jade);
>> C = floor(B/16)*16;
>> imshow(C/255)