…te the result of each method in the documentation.

This UB can be avoided by postponing calculation until needed.

…ld_fix

Fixed Android build with Vulkan support.

Avoid adding value to nullptr

In both cases we add negative value (as unsigned type), so
pointer addition wraps, which is undefined behavior.

Don't overflow pointer addition

- Updated the documentation of the putText function to clarify the behavior of the fontScale parameter.
- Explained how fontScale affects text rendering: magnifying (>1), minimizing (<1), and mirroring (<0).

…traneous comments

core: fixed VSX build with GCC 15

- Change __unix__ check for feature detection. NetBSD does not
have either API.
- Adds support for OpenBSD/powerpc64.

…emplate-description

Fix typo in matchTemplate description

OpenCL: OpenBSD build fix

3rdparty:ittnotify: update to v3.25.4 opencv#26802

Close opencv#26801
See opencv#26797

### Pull Request Readiness Checklist

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
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

Fix an is-empty condition in FFmpeg video capture when parsing FFmpeg options defined in the environment variables

…or_JpegXLDecoder

Fix memory leaks for JpegXLDecoder

Add CMake checks for getauxval and elf_aux_info for POWER

…-for-ellipse-fitting

Improve robustness for ellipse fitting opencv#26773

### Pull Request Readiness Checklist

Related to opencv#26694 

Current noise addition is not very good because for example it turns degenerate case of one horizontal line into degenerate case of two parallel horizontal lines

Improving noise addition leads to improved robustness of algorithms

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

* fix a small typo

* removal of unused variable

…avior-puttext

Added fontScale behavior description to putText() documentation

Added CV_WRAP to Animation struct opencv#26813

closes opencv#26808
### Pull Request Readiness Checklist

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
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

jpegxl: support cv::IMREAD_UNCHANGED and other ImreadFlags opencv#26788

Close opencv#26767

### Pull Request Readiness Checklist

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

…-for-fitEllipseAMS

Improve robustness for fitEllipseAMS opencv#26810

### Pull Request Readiness Checklist

Related to opencv#26694 

Added functionality to add noise to points in degenerate cases and try again for `fitEllipseAMS`. `fitEllipseNoDirect` and `fitEllipseDirect` already have this

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

Replaced sprintf with snprintf opencv#26815

Fixes : opencv#26814

### Pull Request Readiness Checklist

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
- [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable
      Patch to opencv_extra has the same branch name.
- [ ] The feature is well documented and sample code can be built with the project CMake

fix minor issues in calib3d Docs

Migrate remaning OpenVX integrations to OpenVX HAL (imgproc)

Squeeze several Windows pipelines into one with jobs

Removed Android test as it's broken for now

replace tostring() with tobytes()