Simple python script to list all references to the cv namespace.

list_opencv_deps.py

from pathlib import Path
from collections import namedtuple, defaultdict
import re

pattern = re.compile("cv::(\w+)")

deps = defaultdict(list)

p = Path('.')
for i in p.glob('**/*.*pp'):
	print(i)
	for line_number, line in enumerate(open(i)):
	    for match in re.finditer(pattern, line):
	    	dep = match.groups()[0]
	    	data = (i.name, line_number)
	    	deps[dep].append(data)
	        
with open('deps.txt', 'w') as deps_txt:
	for d in deps:
		all_refs = [refs[0] for refs in deps[d]]
		unique_refs = set(all_refs)
		deps_txt.write('{},"{}",{}\n'.format(d, ';'.join(unique_refs), len(all_refs)))