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#!/usr/bin/env python
"""Algorithm serialization 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)
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