Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.4 KiB
51 lines
1.4 KiB
#!/usr/bin/env python |
|
|
|
''' |
|
Morphology operations. |
|
''' |
|
|
|
# Python 2/3 compatibility |
|
from __future__ import print_function |
|
import sys |
|
PY3 = sys.version_info[0] == 3 |
|
|
|
import numpy as np |
|
import cv2 |
|
|
|
from tests_common import NewOpenCVTests |
|
|
|
class morphology_test(NewOpenCVTests): |
|
|
|
def test_morphology(self): |
|
|
|
fn = 'samples/data/baboon.jpg' |
|
img = self.get_sample(fn) |
|
|
|
modes = ['erode/dilate', 'open/close', 'blackhat/tophat', 'gradient'] |
|
str_modes = ['ellipse', 'rect', 'cross'] |
|
|
|
referenceHashes = { modes[0]: '1bd14fc814e41b80ce7816bc04f60b65', modes[1] : '1bd14fc814e41b80ce7816bc04f60b65', |
|
modes[2] : 'cb18a5d28e77522dfec6a6255bc3847e', modes[3] : '84909517e4866aa079f4b2e2906bf47b'} |
|
|
|
def update(cur_mode): |
|
cur_str_mode = str_modes[0] |
|
sz = 10 |
|
iters = 1 |
|
opers = cur_mode.split('/') |
|
if len(opers) > 1: |
|
sz = sz - 10 |
|
op = opers[sz > 0] |
|
sz = abs(sz) |
|
else: |
|
op = opers[0] |
|
sz = sz*2+1 |
|
|
|
str_name = 'MORPH_' + cur_str_mode.upper() |
|
oper_name = 'MORPH_' + op.upper() |
|
|
|
st = cv2.getStructuringElement(getattr(cv2, str_name), (sz, sz)) |
|
return cv2.morphologyEx(img, getattr(cv2, oper_name), st, iterations=iters) |
|
|
|
for mode in modes: |
|
res = update(mode) |
|
self.assertEqual(self.hashimg(res), referenceHashes[mode]) |