[advanced][databases][livdet2013] Add new version following V2 implementation

advanced/databases/livdet2013/5.json

+{
+    "description": "The LivDet 2013 Fingerprint Liveness Database",
+    "root_folder": "/idiap/resource/database/LivDet/LivDet2013",
+    "protocols": [
+        {
+            "name": "Biometrika",
+            "template": "simple_fingerprint_antispoofing/1",
+            "views": {
+                "train": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Biometrika",
+                        "group": "train"
+                    }
+                },
+                "test": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Biometrika",
+                        "group": "test"
+                    }
+                }
+            }
+        },
+        {
+            "name": "Italdata",
+            "template": "simple_fingerprint_antispoofing/1",
+            "views": {
+                "train": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Italdata",
+                        "group": "train"
+                    }
+                },
+                "test": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Italdata",
+                        "group": "test"
+                    }
+                }
+            }
+        },
+        {
+            "name": "CrossMatch",
+            "template": "simple_fingerprint_antispoofing/1",
+            "views": {
+                "train": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "CrossMatch",
+                        "group": "train"
+                    }
+                },
+                "test": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "CrossMatch",
+                        "group": "test"
+                    }
+                }
+            }
+        },
+        {
+            "name": "Swipe",
+            "template": "simple_fingerprint_antispoofing/1",
+            "views": {
+                "train": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Swipe",
+                        "group": "train"
+                    }
+                },
+                "test": {
+                    "view": "All",
+                    "parameters": {
+                        "protocol": "Swipe",
+                        "group": "test"
+                    }
+                }
+            }
+        },
+        {
+            "name": "Full",
+            "template": "simple_fingerprint_antispoofing/1",
+            "views": {
+                "train": {
+                    "view": "All",
+                    "parameters": {
+                        "group": "train"
+                    }
+                },
+                "test": {
+                    "view": "All",
+                    "parameters": {
+                        "group": "test"
+                    }
+                }
+            }
+        }
+    ],
+    "schema_version": 2
+}
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advanced/databases/livdet2013/5.py

+###############################################################################
+#                                                                             #
+# Copyright (c) 2018 Idiap Research Institute, http://www.idiap.ch/           #
+# Contact: beat.support@idiap.ch                                              #
+#                                                                             #
+# This file is part of the beat.examples module of the BEAT platform.         #
+#                                                                             #
+# Commercial License Usage                                                    #
+# Licensees holding valid commercial BEAT licenses may use this file in       #
+# accordance with the terms contained in a written agreement between you      #
+# and Idiap. For further information contact tto@idiap.ch                     #
+#                                                                             #
+# Alternatively, this file may be used under the terms of the GNU Affero      #
+# Public License version 3 as published by the Free Software and appearing    #
+# in the file LICENSE.AGPL included in the packaging of this file.            #
+# The BEAT platform is distributed in the hope that it will be useful, but    #
+# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY  #
+# or FITNESS FOR A PARTICULAR PURPOSE.                                        #
+#                                                                             #
+# You should have received a copy of the GNU Affero Public License along      #
+# with the BEAT platform. If not, see http://www.gnu.org/licenses/.           #
+#                                                                             #
+###############################################################################
+
+import os
+import numpy as np
+from collections import namedtuple
+
+from beat.backend.python.database import View
+
+import bob.io.base
+import bob.io.image
+from bob.db.livdet2013 import Database
+
+
+#----------------------------------------------------------
+
+
+class All(View):
+    """Outputs:
+        - image: "{{ system_user.username }}/array_3d_uint8/1"
+        - spoof: "{{ system_user.username }}/boolean/1"
+
+    Several "image" are associated with a given "spoof".
+
+    --------------- --------------- --------------- --------------- 
+    |    image    | |    image    | |    image    | |    image    | 
+    --------------- --------------- --------------- --------------- 
+    ------------------------------- ------------------------------ 
+    |            spoof            | |            spoof            |
+    ------------------------------- ------------------------------ 
+    """
+
+    def index(self, root_folder, parameters):
+        Entry = namedtuple('Entry', ['spoof', 'image'])
+
+        # Open the database and load the objects to provide via the outputs
+        db = Database()
+        objs = sorted(db.objects(protocols=parameters.get('protocol'),
+                                 groups=parameters['group'],
+                                 classes=parameters.get('class')),
+                      key=lambda x: x.is_live())
+
+        return [ Entry(x.is_live(), x.make_path(root_folder)) for x in objs ]
+
+
+    def get(self, output, index):
+        obj = self.objs[index]
+
+        if output == 'spoof':
+            return {
+                'value': obj.spoof
+            }
+
+        elif output == 'image':
+            return {
+                'value': bob.io.base.load(obj.image)
+            }
+
+
+#----------------------------------------------------------
+
+
+def setup_tests():
+    # Install a mock load function for the images
+    def mock_load(root_folder):
+        return np.ndarray((3, 10, 20), dtype=np.uint8)
+
+    bob.io.base.load = mock_load
+
+
+#----------------------------------------------------------
+
+
+# Test the behavior of the views (on fake data)
+if __name__ == '__main__':
+
+    setup_tests()
+
+    view = All()
+    view.objs = view.index(
+        root_folder='',
+        parameters=dict(
+            protocol='Biometrika',
+            group='train'
+        )
+    )
+    view.get('spoof', 0)
+    view.get('image', 0)

advanced/databases/livdet2013/5.rst

+The LivDet 2013 Fingerprint Liveness Database
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