opencv/modules/python/test/test_algorithm_rw.py
Pavel Rojtberg 2d674fc151 persistence: replace arbitrary limit of cn to 4 by CV_CN_MAX (#10636)
* persistence: replace arbitrary limit of cn to 4 by CV_CN_MAX

* python: added persistence test, remove temp files

* fixup! python: added persistence test, remove temp files

* fixup! python: added persistence test, remove temp files
2018-01-23 13:36:30 +03:00

28 lines
945 B
Python

#!/usr/bin/env python
"""Algorithm serializaion test."""
import tempfile
import os
import cv2 as cv
from tests_common import NewOpenCVTests
class algorithm_rw_test(NewOpenCVTests):
def test_algorithm_rw(self):
fd, fname = tempfile.mkstemp(prefix="opencv_python_algorithm_", suffix=".yml")
os.close(fd)
# some arbitrary non-default parameters
gold = cv.AKAZE_create(descriptor_size=1, descriptor_channels=2, nOctaves=3, threshold=4.0)
gold.write(cv.FileStorage(fname, cv.FILE_STORAGE_WRITE), "AKAZE")
fs = cv.FileStorage(fname, cv.FILE_STORAGE_READ)
algorithm = cv.AKAZE_create()
algorithm.read(fs.getNode("AKAZE"))
self.assertEqual(algorithm.getDescriptorSize(), 1)
self.assertEqual(algorithm.getDescriptorChannels(), 2)
self.assertEqual(algorithm.getNOctaves(), 3)
self.assertEqual(algorithm.getThreshold(), 4.0)
os.remove(fname)