ML Kit의 얼굴 인식 API를 사용하여 이미지에서 얼굴을 인식하고 주요 얼굴 특징을 식별하여 인식된 얼굴에서 윤곽을 가져올 수 있습니다.
얼굴 인식을 사용하면 셀카 및 인물 사진 꾸미기, 사용자의 사진에서 아바타 생성 등의 태스크를 수행하는 데 필요한 정보를 얻을 수 있습니다.
ML Kit에서 실시간으로 얼굴 인식을 수행할 수 있기 때문에 플레이어의 표정에 반응하는 게임이나 영상 채팅과 같은 애플리케이션에서 사용할 수 있습니다.
[null,null,["최종 업데이트: 2025-08-06(UTC)"],[],[],null,["Face Detection \nplat_ios plat_android \n\nWith ML Kit's face detection API, you can detect faces in an image, identify\nkey facial features, and get the contours of detected faces.\n\nWith face detection, you can get the information you need to perform tasks like\nembellishing selfies and portraits, or generating avatars from a user's photo.\nBecause ML Kit can perform face detection in real time, you can use it in\napplications like video chat or games that respond to the player's expressions.\n\n[iOS](/docs/ml-kit/ios/detect-faces)\n[Android](/docs/ml-kit/android/detect-faces)\n\nIf you're a Flutter developer, you might be interested in\n[FlutterFire](https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_ml_vision),\nwhich includes a plugin for Firebase's ML Vision APIs.\n| This is a beta release of ML Kit for Firebase. This API might be changed in backward-incompatible ways and is not subject to any SLA or deprecation policy.\n\nKey capabilities\n\n|--------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Recognize and locate facial features | Get the coordinates of the eyes, ears, cheeks, nose, and mouth of every face detected. |\n| Get the contours of facial features | Get the contours of detected faces and their eyes, eyebrows, lips, and nose. |\n| Recognize facial expressions | Determine whether a person is smiling or has their eyes closed. |\n| Track faces across video frames | Get an identifier for each individual person's face that is detected. This identifier is consistent across invocations, so you can, for example, perform image manipulation on a particular person in a video stream. |\n| Process video frames in real time | Face detection is performed on the device, and is fast enough to be used in real-time applications, such as video manipulation. |\n\nExample results\n\nExample 1\n\nFor each face detected:\n\n| Face 1 of 3 ||\n|---------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| **Bounding polygon** | (884.880004882812, 149.546676635742), (1030.77197265625, 149.546676635742), (1030.77197265625, 329.660278320312), (884.880004882812, 329.660278320312) |\n| **Angles of rotation** | Y: -14.054030418395996, Z: -55.007488250732422 |\n| **Tracking ID** | 2 |\n| **Facial landmarks** | |---------------------|--------------------------------------| | **Left eye** | (945.869323730469, 211.867126464844) | | **Right eye** | (971.579467773438, 247.257247924805) | | **Bottom of mouth** | (907.756591796875, 259.714477539062) | ... etc. |\n| **Feature probabilities** | |--------------------|---------------------| | **Smiling** | 0.88979166746139526 | | **Left eye open** | 0.98635888937860727 | | **Right eye open** | 0.99258323386311531 | |\n\nExample 2 (face contour detection)\n\nWhen you have face contour detection enabled, you also get a list of points\nfor each facial feature that was detected. These points represent the shape of\nthe feature. The following image illustrates how these points map to a face\n(click the image to enlarge):\n\n[](/static/docs/ml-kit/images/examples/face_contours.svg)\n\n| Facial feature contours ||\n|----------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| **Nose bridge** | (505.149811, 221.201797), (506.987122, 313.285919) |\n| **Left eye** | (404.642029, 232.854431), (408.527283, 231.366623), (413.565796, 229.427856), (421.378296, 226.967682), (432.598755, 225.434143), (442.953064, 226.089508), (453.899811, 228.594818), (461.516418, 232.650467), (465.069580, 235.600845), (462.170410, 236.316147), (456.233643, 236.891602), (446.363922, 237.966888), (435.698914, 238.149323), (424.320740, 237.235168), (416.037720, 236.012115), (409.983459, 234.870300) |\n| **Top of upper lip** | (421.662048, 354.520813), (428.103882, 349.694061), (440.847595, 348.048737), (456.549988, 346.295532), (480.526489, 346.089294), (503.375702, 349.470459), (525.624634, 347.352783), (547.371155, 349.091980), (560.082031, 351.693268), (570.226685, 354.210175), (575.305420, 359.257751) |\n| (etc.) | |"]]
