Fixed issue when std::vector<T> is wrapped into Mat with explicit step. #26571
Hopefully, fixes#26497
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Code Fixes and changed post processing based on models.yml in Object Detection Sample #26486
## Major Changes
1. Changes to add findModel support for config file in models like yolov4, yolov4-tiny, yolov3, ssd_caffe, tiny-yolo-voc, ssd_tf and faster_rcnn_tf.
2. Added new model and config download links for ssd_caffe, as previous links were not working.
3. Switched to DNN ENGINE_CLASSIC for non-cpu convig as new engine does not support it.
4. Fixes in python sample related to yolov5 usage.
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imgproc: optimized nearest neighbour interpolation for warpAffine, warpPerspective and remap #26505
PR Description has a limit of 65536 characters. So performance stats are attached below.
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Emscripten build fixes#26537
- Corrects typo in Emscripten-only intrinsics header (Fixes https://github.com/opencv/opencv/issues/26536)
- Updates deprecated intrinsic title (as per LLVM final intrinsic name).
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Modified tensorflow parser for the new dnn engine #26394
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Support CV_32U, CV_64U and CV_64S for TIFF #26508
Close https://github.com/opencv/opencv/issues/26507
Note: Predictor 2 for 64-bit is only supported after libtiff 4.4.0. But Linux x64 Debug uses libtiff 4.1.0 (releases at 2019/11/3). I append fallback fix to NONE. I hope It works well.
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