Abhishek Gola aef6ae4872 Merge pull request #27396 from abhishek-gola:hdr_bug_fix ... Fix NaNs in HDR Triangle Weights and Tonemapping and Update LDR Ground Truth in tutorial #27396 The PR closes #27392 Updated the triangle weights to use a small epsilon value instead of zero to prevent NaN issues in HDR processing. Also fixed a float-to-double division issue by explicitly casting double values to float, which was previously producing garbage values and leading to NaNs in tonemapping. The current LDR ground truth image used in the tutorial [ldr.png](https://github.com/opencv/opencv/blob/4.x/doc/tutorials/others/images/ldr.png) was originally generated using TonemapDurand (check this commit 833f8d16fa), which was moved to opencv_contrib a long time ago in this commit: 742f22c09b. However, the current Tonemap implementation in OpenCV main only performs normalization and gamma correction, which produces noticeably different results. This PR updates the LDR grouth truth image in tutorial with the result of TonemapDrago, and tutorials to use TonemapDrago as Tonemap gives a darker image. Tonemap output:  TonemapDrago output:  ### 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		2025-06-05 09:02:58 +03:00
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calib3d	Merge pull request #27338 from omahs:patch-1	2025-05-21 12:13:50 +03:00
core	Merge pull request #27346 from asmorkalov:as/ipp_hal_sum	2025-05-24 16:53:42 +03:00
dnn	Merge pull request #27363 from MRo47:openvino-npu-support	2025-05-27 14:13:49 +03:00
features2d	Enable Java bindings for SimpleBlobDetector::blobColor	2025-04-20 15:57:41 +09:00
flann	flann: remove unused hdf5 header	2024-11-14 19:44:10 +03:00
gapi	Merge pull request #27355 from asmorkalov:as/gapi_control_msmf	2025-06-04 16:30:50 +03:00
highgui	Fixed QT window resize logic.	2025-05-05 14:52:15 +03:00
imgcodecs	Merge pull request #27384 from Kumataro:fix27382	2025-06-02 11:23:38 +03:00
imgproc	Merge pull request #27398 from asmorkalov:as/relax_remap_relative	2025-06-04 16:29:21 +03:00
java	feat: add conditional inclusion support to header parser	2025-05-19 10:11:52 +03:00
js	Fixed bug in ifdef state machine in header parser for bindings.	2025-06-02 12:41:39 +03:00
ml	Merge pull request #27338 from omahs:patch-1	2025-05-21 12:13:50 +03:00
objc	feat: add conditional inclusion support to header parser	2025-05-19 10:11:52 +03:00
objdetect	Merge pull request #27228 from utibenkei:fix_java_enum_wrapper	2025-04-21 20:51:38 +03:00
photo	Merge pull request #27396 from abhishek-gola:hdr_bug_fix	2025-06-05 09:02:58 +03:00
python	Fixed bug in ifdef state machine in header parser for bindings.	2025-06-02 12:41:39 +03:00
stitching	Merge pull request #26754 from s-trinh:add_bibtex_direct_pdf_links	2025-01-27 10:28:38 +03:00
ts	fix: qnx7.0 build	2025-02-27 14:24:18 +08:00
video	Merge pull request #25027 from opencv-pushbot:gitee/alalek/tests_filter_debug	2025-03-21 10:22:17 +03:00
videoio	Merge pull request #27338 from omahs:patch-1	2025-05-21 12:13:50 +03:00
world	cmake: use /INCREMENTAL:NO with MSVS 2015	2023-12-07 19:46:27 +00:00