ENH: Enhanced the problem set building on the image handing and arrays.
Illustrated dtypes, casting and their importance along with an example
using RGBA images. Also introduce edge detection.
students = {
'Madhu': 45,
'Shantanu':45,
'Puneeth': 54,
'Vattam': 35,
'KD': 54,
'Asokan': 45
}
all_marks = students.values()
unique_marks = set(all_marks)
print "Number of Duplicate marks: ", len(all_marks) - len(unique_marks)
for i in unique_marks:
all_marks.remove(i)
print "Duplicate marks:", set(all_marks)