restic/vendor/cloud.google.com/go/vision/apiv1/examples_test.go

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2017-08-05 18:17:15 +00:00
// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package vision_test
import (
"fmt"
"os"
vision "cloud.google.com/go/vision/apiv1"
"golang.org/x/net/context"
pb "google.golang.org/genproto/googleapis/cloud/vision/v1"
)
func Example_NewImageFromReader() {
f, err := os.Open("path/to/image.jpg")
if err != nil {
// TODO: handle error.
}
img, err := vision.NewImageFromReader(f)
if err != nil {
// TODO: handle error.
}
fmt.Println(img)
}
func Example_NewImageFromURI() {
img := vision.NewImageFromURI("gs://my-bucket/my-image.png")
fmt.Println(img)
}
func ExampleImageAnnotatorClient_AnnotateImage() {
ctx := context.Background()
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
res, err := c.AnnotateImage(ctx, &pb.AnnotateImageRequest{
Image: vision.NewImageFromURI("gs://my-bucket/my-image.png"),
Features: []*pb.Feature{
{Type: pb.Feature_LANDMARK_DETECTION, MaxResults: 5},
{Type: pb.Feature_LABEL_DETECTION, MaxResults: 3},
},
})
if err != nil {
// TODO: Handle error.
}
// TODO: Use res.
_ = res
}
func Example_FaceFromLandmarks() {
ctx := context.Background()
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
resp, err := c.BatchAnnotateImages(ctx, &pb.BatchAnnotateImagesRequest{
Requests: []*pb.AnnotateImageRequest{
{
Image: vision.NewImageFromURI("gs://bucket/image.jpg"),
Features: []*pb.Feature{{
Type: pb.Feature_FACE_DETECTION,
MaxResults: 5,
}},
},
},
})
if err != nil {
// TODO: Handle error.
}
res := resp.Responses[0]
if res.Error != nil {
// TODO: Handle error.
}
for _, a := range res.FaceAnnotations {
face := vision.FaceFromLandmarks(a.Landmarks)
fmt.Println(face.Nose.Tip)
fmt.Println(face.Eyes.Left.Pupil)
}
}