質問編集履歴
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自分なりに進めていたら変更点があった
test
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python
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pythonでのLeapMotionとOpenCVの同時使用
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test
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そのためのプログラムをLeapMotionをダウンロードしたときに付いてきたSample.pyと[こちらのサイト](https://qiita.com/opto-line/items/7ade854c26a50a485159)内にある`capture.py`を参考に
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python2.7に対応させたLeap MotionとOpenCVを用いたカメラ映像を一緒に使い、LeapMotionの上に手をかざしたときに取得したカメラ映像の画面内に文字をプリントする処理を行うプログラムを作りたいと考えています。
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そのためのプログラムをLeapMotionをダウンロードしたときに付いてきたSample.pyと[こちらのサイト](https://qiita.com/opto-line/items/7ade854c26a50a485159)内にある`capture.py`を参考に自分なりにプログラムを考えてみたのですがleapmotionの処理が終わらないとにOpenCVの処理が始まらないようになってしまいます。どのようにしたらOpencvでカメラ画像を写しながらLeapMotionの処理を行うようにできるのでしょうか。
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```python
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import Leap, sys,thread, time
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class SampleListener(Leap.Listener):
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finger_names = ['Thumb', 'Index', 'Middle', 'Ring', 'Pinky']
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bone_names = ['Metacarpal', 'Proximal', 'Intermediate', 'Distal']
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def on_init(self, controller):
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print ("Initialized")
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def on_connect(self, controller):
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print ("Connected")
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def on_disconnect(self, controller):
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# Note: not dispatched when running in a debugger.
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print ("Disconnected")
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def on_exit(self, controller):
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print ("Exited")
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def on_frame(self, controller):
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# Get the most recent frame and report some basic information
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frame = controller.frame()
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print ("Frame id: %d, timestamp: %d, hands: %d, fingers: %d" % (
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frame.id, frame.timestamp, len(frame.hands), len(frame.fingers)))
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# Get hands
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for hand in frame.hands:
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handType = "Left hand" if hand.is_left else "Right hand"
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print (" %s, id %d, position: %s" % (
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handType, hand.id, hand.palm_position))
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# Get the hand's normal vector and direction
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normal = hand.palm_normal
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direction = hand.direction
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# Calculate the hand's pitch, roll, and yaw angles
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print (" pitch: %f degrees, roll: %f degrees, yaw: %f degrees" % (
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direction.pitch * Leap.RAD_TO_DEG,
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normal.roll * Leap.RAD_TO_DEG,
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direction.yaw * Leap.RAD_TO_DEG))
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# Get arm bone
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arm = hand.arm
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print (" Arm direction: %s, wrist position: %s, elbow position: %s" % (
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arm.direction,
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arm.wrist_position,
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arm.elbow_position))
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# Get fingers
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for finger in hand.fingers:
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print (" %s finger, id: %d, length: %fmm, width: %fmm" % (
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self.finger_names[finger.type],
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finger.id,
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finger.length,
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finger.width))
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# Get bones
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for b in range(0, 4):
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bone = finger.bone(b)
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print (" Bone: %s, start: %s, end: %s, direction: %s" % (
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self.bone_names[bone.type],
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bone.prev_joint,
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bone.next_joint,
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bone.direction))
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if not frame.hands.is_empty:
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print ("")
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def main():
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# Create a sample listener and controller
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listener = SampleListener()
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controller = Leap.Controller()
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# Have the sample listener receive events from the controller
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controller.add_listener(listener)
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# Keep this process running until Enter is pressed
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print ("Press Enter to quit...")
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try:
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sys.stdin.readline()
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except KeyboardInterrupt:
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pass
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finally:
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# Remove the sample listener when done
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controller.remove_listener(listener)
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if __name__ == "__main__":
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main()
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```
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自作プログラム ka.py
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```python
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import cv2
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import Leap, sys, time
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cap = cv2.VideoCapture(0)
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class SampleListener(Leap.Listener):
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finger_names = ['Thumb', 'Index', 'Middle', 'Ring', 'Pinky']
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bone_names = ['Metacarpal', 'Proximal', 'Intermediate', 'Distal']
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def on_init(self, controller):
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print ("Initialized")
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def on_connect(self, controller):
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print ("Connected")
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def on_disconnect(self, controller):
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# Note: not dispatched when running in a debugger.
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print ("Disconnected")
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def on_exit(self, controller):
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print ("Exited")
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def on_frame(self, controller):
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# Get the most recent frame and report some basic information
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frame = controller.frame()
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print (" %s, id %d, position: %s" % (
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handType, hand.id, hand.palm_position))
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86
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87
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88
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89
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# Get the hand's normal vector and direction
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90
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91
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normal = hand.palm_normal
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92
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direction = hand.direction
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94
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95
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96
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97
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# Calculate the hand's pitch, roll, and yaw angles
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98
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99
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print (" pitch: %f degrees, roll: %f degrees, yaw: %f degrees" % (
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direction.pitch * Leap.RAD_TO_DEG,
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103
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normal.roll * Leap.RAD_TO_DEG,
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104
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105
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direction.yaw * Leap.RAD_TO_DEG))
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106
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107
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108
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109
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# Get arm bone
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110
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arm = hand.arm
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112
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113
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print (" Arm direction: %s, wrist position: %s, elbow position: %s" % (
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115
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arm.direction,
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116
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117
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arm.wrist_position,
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118
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119
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arm.elbow_position))
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120
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121
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122
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123
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# Get fingers
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124
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125
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for finger in hand.fingers:
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126
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127
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128
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print (" %s finger, id: %d, length: %fmm, width: %fmm" % (
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self.finger_names[finger.type],
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finger.id,
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finger.length,
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136
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finger.width))
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138
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139
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140
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141
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# Get bones
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142
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143
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for b in range(0, 4):
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144
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bone = finger.bone(b)
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146
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print (" Bone: %s, start: %s, end: %s, direction: %s" % (
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148
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self.bone_names[bone.type],
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150
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151
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bone.prev_joint,
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152
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153
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bone.next_joint,
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154
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155
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bone.direction))
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156
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157
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158
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159
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if not frame.hands.is_empty:
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160
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161
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print ("")
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223
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finger_names = ['Thumb', 'Index', 'Middle', 'Ring', 'Pinky']
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224
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225
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bone_names = ['Metacarpal', 'Proximal', 'Intermediate', 'Distal']
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226
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+
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227
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+
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228
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229
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def on_init(self, controller):
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230
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231
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print ("Initialized")
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232
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+
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233
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234
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235
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def on_connect(self, controller):
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236
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237
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print ("Connected")
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238
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239
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240
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+
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241
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def on_disconnect(self, controller):
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242
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243
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# Note: not dispatched when running in a debugger.
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244
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+
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245
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print ("Disconnected")
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246
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+
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247
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+
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248
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+
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249
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def on_exit(self, controller):
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250
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+
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251
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print ("Exited")
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252
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+
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253
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+
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254
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+
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255
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+
def on_frame(self, controller):
|
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256
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+
|
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257
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+
# Get the most recent frame and report some basic information
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|
258
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+
|
|
259
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+
frame = controller.frame()
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|
260
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+
|
|
261
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+
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262
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+
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263
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+
# Get hands
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264
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+
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265
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+
for hand in frame.hands:
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266
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+
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267
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+
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268
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+
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269
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+
handType = "Left hand" if hand.is_left else "Right hand"
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|
270
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+
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271
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+
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272
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+
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273
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+
cv2.putText(frame,"hand", (10,80), cv2.FONT_HERSHEY_SIMPLEX, 0.7, (255,155,0), 1, cv2.LINE_AA)
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274
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+
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275
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+
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162
276
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163
277
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164
278
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165
279
|
def main():
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166
280
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167
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# Create a sample listener and controller
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281
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+
# Create a sample listener and controller
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168
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-
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282
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+
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169
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listener = SampleListener()
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283
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+
listener = SampleListener()
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170
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-
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284
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+
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171
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controller = Leap.Controller()
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285
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+
controller = Leap.Controller()
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172
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-
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173
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-
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174
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-
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286
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+
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287
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+
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288
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+
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175
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-
# Have the sample listener receive events from the controller
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289
|
+
# Have the sample listener receive events from the controller
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176
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-
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290
|
+
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177
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-
controller.add_listener(listener)
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291
|
+
controller.add_listener(listener)
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178
|
-
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179
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-
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180
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-
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292
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+
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293
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+
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294
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+
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181
|
-
# Keep this process running until Enter is pressed
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295
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+
# Keep this process running until Enter is pressed
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182
|
-
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296
|
+
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183
|
-
print ("Press Enter to quit...")
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297
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+
print ("Press Enter to quit...")
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184
|
-
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298
|
+
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|
185
|
-
try:
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299
|
+
try:
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186
|
-
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300
|
+
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|
187
|
-
sys.stdin.readline()
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301
|
+
sys.stdin.readline()
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|
188
|
-
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302
|
+
|
|
189
|
-
except KeyboardInterrupt:
|
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303
|
+
except KeyboardInterrupt:
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190
|
-
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304
|
+
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|
191
|
-
pass
|
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305
|
+
pass
|
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192
|
-
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|
306
|
+
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|
193
|
-
finally:
|
|
307
|
+
finally:
|
|
194
|
-
|
|
308
|
+
|
|
195
|
-
# Remove the sample listener when done
|
|
309
|
+
# Remove the sample listener when done
|
|
196
|
-
|
|
310
|
+
|
|
197
|
-
controller.remove_listener(listener)
|
|
311
|
+
controller.remove_listener(listener)
|
|
312
|
+
|
|
313
|
+
|
|
314
|
+
|
|
198
|
-
|
|
315
|
+
while(cap.isOpened()):
|
|
316
|
+
|
|
199
|
-
|
|
317
|
+
# フレームを取得
|
|
318
|
+
|
|
200
|
-
|
|
319
|
+
ret, frame = cap.read()
|
|
320
|
+
|
|
321
|
+
|
|
322
|
+
|
|
323
|
+
#LeapMotionに手をかざしたときの処理
|
|
324
|
+
|
|
201
|
-
if __name__ == "__main__":
|
|
325
|
+
if __name__ == "__main__":
|
|
202
|
-
|
|
326
|
+
|
|
203
|
-
main()
|
|
327
|
+
main()
|
|
328
|
+
|
|
329
|
+
|
|
330
|
+
|
|
331
|
+
# フレームを表示
|
|
332
|
+
|
|
333
|
+
cv2.imshow("Flame", frame)
|
|
334
|
+
|
|
335
|
+
|
|
336
|
+
|
|
337
|
+
# qキーが押されたら途中終了
|
|
338
|
+
|
|
339
|
+
if cv2.waitKey(1) & 0xFF == ord('q'):
|
|
340
|
+
|
|
341
|
+
break
|
|
342
|
+
|
|
343
|
+
|
|
344
|
+
|
|
345
|
+
cap.release()
|
|
346
|
+
|
|
347
|
+
cv2.destroyAllWindows()
|
|
204
348
|
|
|
205
349
|
```
|
|
206
350
|
|
|
207
|
-
|
|
351
|
+
実行結果
|
|
352
|
+
|
|
353
|
+
---
|
|
354
|
+
|
|
355
|
+
OpenCVの関数であるputTextを使っているので当然なのですが、手をかざすと以下のようなエラーメッセージが繰り返されます。
|
|
208
356
|
|
|
209
357
|
```python
|
|
210
358
|
|
|
211
|
-
import cv2
|
|
212
|
-
|
|
213
|
-
import Leap, sys, time
|
|
214
|
-
|
|
215
|
-
|
|
216
|
-
|
|
217
|
-
cap = cv2.VideoCapture(0)
|
|
218
|
-
|
|
219
|
-
|
|
220
|
-
|
|
221
|
-
c
|
|
359
|
+
Traceback (most recent call last):
|
|
222
|
-
|
|
223
|
-
|
|
360
|
+
|
|
224
|
-
|
|
225
|
-
bone_names = ['Metacarpal', 'Proximal', 'Intermediate', 'Distal']
|
|
226
|
-
|
|
227
|
-
|
|
228
|
-
|
|
229
|
-
def on_init(self, controller):
|
|
230
|
-
|
|
231
|
-
print ("Initialized")
|
|
232
|
-
|
|
233
|
-
|
|
234
|
-
|
|
235
|
-
def on_connect(self, controller):
|
|
236
|
-
|
|
237
|
-
print ("Connected")
|
|
238
|
-
|
|
239
|
-
|
|
240
|
-
|
|
241
|
-
def on_disconnect(self, controller):
|
|
242
|
-
|
|
243
|
-
|
|
361
|
+
File "ka.py", line 33, in on_frame
|
|
244
|
-
|
|
245
|
-
|
|
362
|
+
|
|
246
|
-
|
|
247
|
-
|
|
248
|
-
|
|
249
|
-
def on_exit(self, controller):
|
|
250
|
-
|
|
251
|
-
print ("Exited")
|
|
252
|
-
|
|
253
|
-
|
|
254
|
-
|
|
255
|
-
def on_frame(self, controller):
|
|
256
|
-
|
|
257
|
-
# Get the most recent frame and report some basic information
|
|
258
|
-
|
|
259
|
-
frame = controller.frame()
|
|
260
|
-
|
|
261
|
-
|
|
262
|
-
|
|
263
|
-
# Get hands
|
|
264
|
-
|
|
265
|
-
for hand in frame.hands:
|
|
266
|
-
|
|
267
|
-
|
|
268
|
-
|
|
269
|
-
handType = "Left hand" if hand.is_left else "Right hand"
|
|
270
|
-
|
|
271
|
-
|
|
272
|
-
|
|
273
|
-
|
|
363
|
+
cv2.putText(frame,"hand",(10,88),cv2.FONT_HERSHEY_SIMPLEX, 0.7,(255,155,0),1,cv2.LINEAA)
|
|
274
|
-
|
|
275
|
-
|
|
276
|
-
|
|
277
|
-
|
|
278
|
-
|
|
279
|
-
|
|
364
|
+
|
|
280
|
-
|
|
281
|
-
# Create a sample listener and controller
|
|
282
|
-
|
|
283
|
-
listener = SampleListener()
|
|
284
|
-
|
|
285
|
-
controller = Leap.Controller()
|
|
286
|
-
|
|
287
|
-
|
|
288
|
-
|
|
289
|
-
# Have the sample listener receive events from the controller
|
|
290
|
-
|
|
291
|
-
controller.add_listener(listener)
|
|
292
|
-
|
|
293
|
-
|
|
294
|
-
|
|
295
|
-
|
|
365
|
+
TypeError;img is not a numpy array,neither a scalar
|
|
296
|
-
|
|
297
|
-
print ("Press Enter to quit...")
|
|
298
|
-
|
|
299
|
-
try:
|
|
300
|
-
|
|
301
|
-
sys.stdin.readline()
|
|
302
|
-
|
|
303
|
-
except KeyboardInterrupt:
|
|
304
|
-
|
|
305
|
-
pass
|
|
306
|
-
|
|
307
|
-
finally:
|
|
308
|
-
|
|
309
|
-
# Remove the sample listener when done
|
|
310
|
-
|
|
311
|
-
controller.remove_listener(listener)
|
|
312
|
-
|
|
313
|
-
|
|
314
|
-
|
|
315
|
-
while(cap.isOpened()):
|
|
316
|
-
|
|
317
|
-
# フレームを取得
|
|
318
|
-
|
|
319
|
-
ret, frame = cap.read()
|
|
320
|
-
|
|
321
|
-
|
|
322
|
-
|
|
323
|
-
#LeapMotionに手をかざしたときの処理
|
|
324
|
-
|
|
325
|
-
if __name__ == "__main__":
|
|
326
|
-
|
|
327
|
-
main()
|
|
328
|
-
|
|
329
|
-
|
|
330
|
-
|
|
331
|
-
# フレームを表示
|
|
332
|
-
|
|
333
|
-
cv2.imshow("Flame", frame)
|
|
334
|
-
|
|
335
|
-
|
|
336
|
-
|
|
337
|
-
|
|
338
|
-
|
|
339
|
-
# qキーが押されたら途中終了
|
|
340
|
-
|
|
341
|
-
if cv2.waitKey(1) & 0xFF == ord('q'):
|
|
342
|
-
|
|
343
|
-
break
|
|
344
|
-
|
|
345
|
-
|
|
346
|
-
|
|
347
|
-
cap.release()
|
|
348
|
-
|
|
349
|
-
cv2.destroyAllWindows()
|
|
350
366
|
|
|
351
367
|
```
|
|
352
368
|
|
|
353
|
-
実行結果
|
|
354
|
-
|
|
355
|
-
---
|
|
356
|
-
|
|
357
|
-
|
|
369
|
+
この処理の終了後にOpenCVの処理が始まるようになります。
|
|
358
|
-
|
|
359
|
-
```python
|
|
360
|
-
|
|
361
|
-
Traceback (most recent call last):
|
|
362
|
-
|
|
363
|
-
File "ka.py", line 33, in on_frame
|
|
364
|
-
|
|
365
|
-
cv2.putText(frame,"hand",(10,88),cv2.FONT_HERSHEY_SIMPLEX, 0.7,(255,155,0),1,cv2.LINEAA)
|
|
366
|
-
|
|
367
|
-
TypeError;img is not a numpy array,neither a scalar
|
|
368
|
-
|
|
369
|
-
```
|
|
370
|
-
|
|
371
|
-
この処理を Ctrl + c で終わらせるとカメラ映像が映し出されるのですがすぐに固まって応答なしとなります。
|