std::rand() has no thread-safe guarantee.

backport commit: 147f3ebf

backport eb1f3733 into 2.4

fix #11699 Missing std header

via find_package(OpenCV)

2.4.13.7

backport 5128c1ff

Thread-safe version of sparse function in cv::gpu::PyrLKOpticalFlow 2

* Thread-safe version of sparse function in cv::gpu::PyrLKOpticalFlow
class. The new function name is sparse_multi

* Thread-safe sparse function in cv::gpu::PyrLKOpticalFlow. Tests

* Thread-safe sparse function in cv::gpu::PyrLKOpticalFlow class.

Add intel_TBB conditional compilation

tab to space

Fix build with FFmpeg 4.0

Backport of https://github.com/opencv/opencv/pull/10011.

2.4.13.6

6e8241b7

(2.4) backport imgcodecs fixes

435a3e33

imgcodecs: remove assert() usage

Origin commits:
- be524792
- 8a76fada

7bbe1a53

Add mask support to SimpleBlobDetector

backport 8e21f808

(2.4 backport) Fixed #10433