153 lines
5 KiB
Go
153 lines
5 KiB
Go
// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package vision
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import (
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"log"
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pb "google.golang.org/genproto/googleapis/cloud/vision/v1"
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)
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// FaceLandmarks contains the positions of facial features detected by the service.
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type FaceLandmarks struct {
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Eyebrows Eyebrows
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Eyes Eyes
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Ears Ears
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Nose Nose
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Mouth Mouth
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Chin Chin
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Forehead *pb.Position
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}
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// Eyebrows represents a face's eyebrows.
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type Eyebrows struct {
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Left, Right Eyebrow
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}
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// Eyebrow represents a face's eyebrow.
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type Eyebrow struct {
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Top, Left, Right *pb.Position
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}
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// Eyes represents a face's eyes.
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type Eyes struct {
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Left, Right Eye
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}
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// Eye represents a face's eye.
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type Eye struct {
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Left, Right, Top, Bottom, Center, Pupil *pb.Position
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}
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// Ears represents a face's ears.
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type Ears struct {
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Left, Right *pb.Position
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}
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// Nose represents a face's nose.
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type Nose struct {
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Left, Right, Top, Bottom, Tip *pb.Position
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}
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// Mouth represents a face's mouth.
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type Mouth struct {
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Left, Center, Right, UpperLip, LowerLip *pb.Position
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}
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// Chin represents a face's chin.
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type Chin struct {
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Left, Center, Right *pb.Position
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}
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// FaceFromLandmarks converts the list of face landmarks returned by the service
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// to a FaceLandmarks struct.
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func FaceFromLandmarks(landmarks []*pb.FaceAnnotation_Landmark) *FaceLandmarks {
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face := &FaceLandmarks{}
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for _, lm := range landmarks {
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switch lm.Type {
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case pb.FaceAnnotation_Landmark_LEFT_OF_LEFT_EYEBROW:
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face.Eyebrows.Left.Left = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_OF_LEFT_EYEBROW:
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face.Eyebrows.Left.Right = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_OF_RIGHT_EYEBROW:
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face.Eyebrows.Right.Left = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_OF_RIGHT_EYEBROW:
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face.Eyebrows.Right.Right = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYEBROW_UPPER_MIDPOINT:
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face.Eyebrows.Left.Top = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYEBROW_UPPER_MIDPOINT:
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face.Eyebrows.Right.Top = lm.Position
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case pb.FaceAnnotation_Landmark_MIDPOINT_BETWEEN_EYES:
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face.Nose.Top = lm.Position
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case pb.FaceAnnotation_Landmark_NOSE_TIP:
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face.Nose.Tip = lm.Position
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case pb.FaceAnnotation_Landmark_UPPER_LIP:
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face.Mouth.UpperLip = lm.Position
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case pb.FaceAnnotation_Landmark_LOWER_LIP:
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face.Mouth.LowerLip = lm.Position
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case pb.FaceAnnotation_Landmark_MOUTH_LEFT:
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face.Mouth.Left = lm.Position
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case pb.FaceAnnotation_Landmark_MOUTH_RIGHT:
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face.Mouth.Right = lm.Position
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case pb.FaceAnnotation_Landmark_MOUTH_CENTER:
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face.Mouth.Center = lm.Position
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case pb.FaceAnnotation_Landmark_NOSE_BOTTOM_RIGHT:
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face.Nose.Right = lm.Position
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case pb.FaceAnnotation_Landmark_NOSE_BOTTOM_LEFT:
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face.Nose.Left = lm.Position
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case pb.FaceAnnotation_Landmark_NOSE_BOTTOM_CENTER:
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face.Nose.Bottom = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE:
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face.Eyes.Left.Center = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE:
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face.Eyes.Right.Center = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE_TOP_BOUNDARY:
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face.Eyes.Left.Top = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE_RIGHT_CORNER:
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face.Eyes.Left.Right = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE_BOTTOM_BOUNDARY:
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face.Eyes.Left.Bottom = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE_LEFT_CORNER:
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face.Eyes.Left.Left = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE_TOP_BOUNDARY:
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face.Eyes.Right.Top = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE_RIGHT_CORNER:
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face.Eyes.Right.Right = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE_BOTTOM_BOUNDARY:
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face.Eyes.Right.Bottom = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE_LEFT_CORNER:
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face.Eyes.Right.Left = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EYE_PUPIL:
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face.Eyes.Left.Pupil = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EYE_PUPIL:
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face.Eyes.Right.Pupil = lm.Position
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case pb.FaceAnnotation_Landmark_LEFT_EAR_TRAGION:
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face.Ears.Left = lm.Position
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case pb.FaceAnnotation_Landmark_RIGHT_EAR_TRAGION:
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face.Ears.Right = lm.Position
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case pb.FaceAnnotation_Landmark_FOREHEAD_GLABELLA:
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face.Forehead = lm.Position
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case pb.FaceAnnotation_Landmark_CHIN_GNATHION:
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face.Chin.Center = lm.Position
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case pb.FaceAnnotation_Landmark_CHIN_LEFT_GONION:
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face.Chin.Left = lm.Position
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case pb.FaceAnnotation_Landmark_CHIN_RIGHT_GONION:
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face.Chin.Right = lm.Position
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default:
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log.Printf("vision: ignoring unknown face annotation landmark %s", lm.Type)
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}
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}
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return face
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}
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