| Yin-Chia Yeh | 0e0276f | 2015-06-03 15:27:06 -0700 | [diff] [blame^] | 1 | # Copyright 2014 The Android Open Source Project |
| 2 | # |
| 3 | # Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | # you may not use this file except in compliance with the License. |
| 5 | # You may obtain a copy of the License at |
| 6 | # |
| 7 | # http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | # |
| 9 | # Unless required by applicable law or agreed to in writing, software |
| 10 | # distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | # See the License for the specific language governing permissions and |
| 13 | # limitations under the License. |
| 14 | |
| 15 | import its.image |
| 16 | import its.device |
| 17 | import its.objects |
| 18 | import os.path |
| 19 | |
| 20 | def main(): |
| 21 | """Test face detection. |
| 22 | """ |
| 23 | NAME = os.path.basename(__file__).split(".")[0] |
| 24 | NUM_TEST_FRAMES = 20 |
| 25 | FD_MODE_OFF = 0 |
| 26 | FD_MODE_SIMPLE = 1 |
| 27 | FD_MODE_FULL = 2 |
| 28 | |
| 29 | with its.device.ItsSession() as cam: |
| 30 | props = cam.get_camera_properties() |
| 31 | fd_modes = props['android.statistics.info.availableFaceDetectModes'] |
| 32 | a = props['android.sensor.info.activeArraySize'] |
| 33 | aw, ah = a['right'] - a['left'], a['bottom'] - a['top'] |
| 34 | cam.do_3a() |
| 35 | for fd_mode in fd_modes: |
| 36 | assert(FD_MODE_OFF <= fd_mode <= FD_MODE_FULL) |
| 37 | req = its.objects.auto_capture_request() |
| 38 | req['android.statistics.faceDetectMode'] = fd_mode |
| 39 | caps = cam.do_capture([req]*NUM_TEST_FRAMES) |
| 40 | for i,cap in enumerate(caps): |
| 41 | md = cap['metadata'] |
| 42 | assert(md['android.statistics.faceDetectMode'] == fd_mode) |
| 43 | faces = md['android.statistics.faces'] |
| 44 | |
| 45 | # 0 faces should be returned for OFF mode |
| 46 | if fd_mode == FD_MODE_OFF: |
| 47 | assert(len(faces) == 0) |
| 48 | continue |
| 49 | # Face detection could take several frames to warm up, |
| 50 | # but it should detect at least one face in last frame |
| 51 | if i == NUM_TEST_FRAMES - 1: |
| 52 | if len(faces) == 0: |
| 53 | print "Error: no face detected in mode", fd_mode |
| 54 | assert(0) |
| 55 | if len(faces) == 0: |
| 56 | continue |
| 57 | |
| 58 | print "Frame %d face metadata:" % i |
| 59 | print " Faces:", faces |
| 60 | print "" |
| 61 | |
| 62 | face_scores = [face['score'] for face in faces] |
| 63 | face_rectangles = [face['bounds'] for face in faces] |
| 64 | for score in face_scores: |
| 65 | assert(score >= 1 and score <= 100) |
| 66 | # Face bounds should be within active array |
| 67 | for rect in face_rectangles: |
| 68 | assert(rect['top'] < rect['bottom']) |
| 69 | assert(rect['left'] < rect['right']) |
| 70 | assert(0 <= rect['top'] <= ah) |
| 71 | assert(0 <= rect['bottom'] <= ah) |
| 72 | assert(0 <= rect['left'] <= aw) |
| 73 | assert(0 <= rect['right'] <= aw) |
| 74 | |
| 75 | # Face landmarks are reported if and only if fd_mode is FULL |
| 76 | # Face ID should be -1 for SIMPLE and unique for FULL |
| 77 | if fd_mode == FD_MODE_SIMPLE: |
| 78 | for face in faces: |
| 79 | assert('leftEye' not in face) |
| 80 | assert('rightEye' not in face) |
| 81 | assert('mouth' not in face) |
| 82 | assert(face['id'] == -1) |
| 83 | elif fd_mode == FD_MODE_FULL: |
| 84 | face_ids = [face['id'] for face in faces] |
| 85 | assert(len(face_ids) == len(set(face_ids))) |
| 86 | # Face landmarks should be within face bounds |
| 87 | for face in faces: |
| 88 | left_eye = face['leftEye'] |
| 89 | right_eye = face['rightEye'] |
| 90 | mouth = face['mouth'] |
| 91 | l, r = face['bounds']['left'], face['bounds']['right'] |
| 92 | t, b = face['bounds']['top'], face['bounds']['bottom'] |
| 93 | assert(l <= left_eye['x'] <= r) |
| 94 | assert(t <= left_eye['y'] <= b) |
| 95 | assert(l <= right_eye['x'] <= r) |
| 96 | assert(t <= right_eye['y'] <= b) |
| 97 | assert(l <= mouth['x'] <= r) |
| 98 | assert(t <= mouth['y'] <= b) |
| 99 | |
| 100 | if __name__ == '__main__': |
| 101 | main() |
| 102 | |