deepin-ocr/3rdparty/opencv-4.5.4/modules/python/test/test_persistence.py
wangzhengyang 718c41634f feat: 切换后端至PaddleOCR-NCNN,切换工程为CMake
1.项目后端整体迁移至PaddleOCR-NCNN算法,已通过基本的兼容性测试
2.工程改为使用CMake组织,后续为了更好地兼容第三方库,不再提供QMake工程
3.重整权利声明文件,重整代码工程,确保最小化侵权风险

Log: 切换后端至PaddleOCR-NCNN,切换工程为CMake
Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c
2022-05-10 10:22:11 +08:00

45 lines
1.5 KiB
Python

#!/usr/bin/env python
""""Core serialization tests."""
import tempfile
import os
import cv2 as cv
import numpy as np
from tests_common import NewOpenCVTests
class persistence_test(NewOpenCVTests):
def test_yml_rw(self):
fd, fname = tempfile.mkstemp(prefix="opencv_python_persistence_", suffix=".yml")
os.close(fd)
# Writing ...
expected = np.array([[[0, 1, 2, 3, 4]]])
expected_str = ("Hello", "World", "!")
fs = cv.FileStorage(fname, cv.FILE_STORAGE_WRITE)
fs.write("test", expected)
fs.write("strings", expected_str)
fs.release()
# Reading ...
fs = cv.FileStorage(fname, cv.FILE_STORAGE_READ)
root = fs.getFirstTopLevelNode()
self.assertEqual(root.name(), "test")
test = fs.getNode("test")
self.assertEqual(test.empty(), False)
self.assertEqual(test.name(), "test")
self.assertEqual(test.type(), cv.FILE_NODE_MAP)
self.assertEqual(test.isMap(), True)
actual = test.mat()
self.assertEqual(actual.shape, expected.shape)
self.assertEqual(np.array_equal(expected, actual), True)
strings = fs.getNode("strings")
self.assertEqual(strings.isSeq(), True)
self.assertEqual(strings.size(), len(expected_str))
self.assertEqual(all(strings.at(i).isString() for i in range(strings.size())), True)
self.assertSequenceEqual([strings.at(i).string() for i in range(strings.size())], expected_str)
fs.release()
os.remove(fname)