opencv/modules/js/test/test_core.js
Dmitry Kurtaev a03b813167
Merge pull request #25732 from dkurt:opencv_js_tests_update
Fix OpenCV.js tests #25732

### Pull Request Readiness Checklist

* Firefox tests passed

See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request

- [x] I agree to contribute to the project under Apache 2 License.
- [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV
- [x] The PR is proposed to the proper branch
- [x] There is a reference to the original bug report and related work
- [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [x] The feature is well documented and sample code can be built with the project CMake
2024-06-11 12:01:51 +03:00

37 lines
1.1 KiB
JavaScript

// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
QUnit.module('Core', {});
QUnit.test('test_LUT', function(assert) {
// test LUT
{
let src = cv.matFromArray(3, 3, cv.CV_8UC1, [255, 128, 0, 0, 128, 255, 1, 2, 254]);
let lutTable = [];
for (let i = 0; i < 256; i++)
{
lutTable[i] = 255 - i;
}
let lut = cv.matFromArray(1, 256, cv.CV_8UC1, lutTable);
let dst = new cv.Mat();
cv.LUT(src, lut, dst);
//console.log(dst.data);
assert.equal(dst.ucharAt(0), 0);
assert.equal(dst.ucharAt(1), 127);
assert.equal(dst.ucharAt(2), 255);
assert.equal(dst.ucharAt(3), 255);
assert.equal(dst.ucharAt(4), 127);
assert.equal(dst.ucharAt(5), 0);
assert.equal(dst.ucharAt(6), 254);
assert.equal(dst.ucharAt(7), 253);
assert.equal(dst.ucharAt(8), 1);
src.delete();
lut.delete();
dst.delete();
}
});