(5.x) Merge 4.x

README.md

@@ -5,7 +5,8 @@ This repository contains extra data for the OpenCV library.
 #### Resources
 * Homepage: http://opencv.org
 * Docs: http://docs.opencv.org
-* Q&A forum: http://answers.opencv.org
+* Q&A forum: https://forum.opencv.org
+  * previous forum (read only): http://answers.opencv.org
 * Issue tracking: https://github.com/opencv/opencv/issues
 
 #### Contributing

testdata/cv/dnn_face/README.md

@@ -0,0 +1,26 @@
+# Test data for deep learning-based face detection and face recognition
+
+This directory contains images and labels for the unit tests of deep learning-based face detection and face recognition.
+
+## Data in `./detection`
+
+- `cascades_labels.txt`: contains the ground truth generated by [libfacedetection](https://github.com/ShiqiYu/libfacedetection) from the images under `../cascadeandhog/images`. The format is as follows:
+    - image_name_1
+    - number_of_faces_in_image_1
+    - face_1_in_image_1: `x, y, w, h, x0, y0, x1, y1, x2, y2, x3, y3, x4, y4`
+    - face_2_in_image_1: ...
+    - ...
+    - image_name_2
+    - number_of_faces_in_image_2
+    - face_1_in_image_2: ...
+    - ...
+
+    where `x, y, w, h` stands for the top-left coordinates and the width and height of the bounding box, `x0, y0` stands for the coordinates of the pupile of the right eye, `x1, y1` stands for the left eye, `x2, y2` stands for the coordinates of the nose tip, `x3, y3` and `x4, y4` stands for the coordinates of right and left corner of the mouth.
+
+## Data in `./recognition`
+
+- `*.jpg`: these images can be found on [LFW dataset](http://vis-www.cs.umass.edu/lfw/).
+- `cascades_label.txt`: contains two pairs (same and different identities) for the recognition unit test. The format is as follows:
+    - image_name_1 image_name_2 label
+
+    where `label` is either 0 or 1, and `0` means same identity, `1` means different identities.

testdata/cv/dnn_face/detection/cascades_labels.txt

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testdata/cv/dnn_face/recognition/cascades_label.txt

@@ -0,0 +1,2 @@
+Alvaro_Uribe_0028.jpg Alvaro_Uribe_0029.jpg 1
+Aaron_Tippin_0001.jpg Jose_Luis_Rodriguez_Zapatero_0001.jpg 0

testdata/cv/io/3_4/Core_InputOutput--filestorage_base64_basic_rw_JSON.json

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testdata/cv/io/3_4/Core_InputOutput--filestorage_base64_basic_rw_XML.xml

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+    </data></random_mat>
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