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restic/vendor/cloud.google.com/go/vision/examples_test.go
2017-08-06 21:47:56 +02:00

100 lines
2.3 KiB
Go

// 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"
"cloud.google.com/go/vision"
"golang.org/x/net/context"
)
func ExampleNewClient() {
ctx := context.Background()
client, err := vision.NewClient(ctx)
if err != nil {
// TODO: handle error.
}
// Use the client.
// Close the client when finished.
if err := client.Close(); err != nil {
// TODO: handle error.
}
}
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 ExampleClient_Annotate_oneImage() {
ctx := context.Background()
client, err := vision.NewClient(ctx)
if err != nil {
// TODO: handle error.
}
annsSlice, err := client.Annotate(ctx, &vision.AnnotateRequest{
Image: vision.NewImageFromURI("gs://my-bucket/my-image.png"),
MaxLogos: 100,
MaxTexts: 100,
SafeSearch: true,
})
if err != nil {
// TODO: handle error.
}
anns := annsSlice[0]
if anns.Logos != nil {
fmt.Println(anns.Logos)
}
if anns.Texts != nil {
fmt.Println(anns.Texts)
}
if anns.SafeSearch != nil {
fmt.Println(anns.SafeSearch)
}
if anns.Error != nil {
fmt.Printf("at least one of the features failed: %v", anns.Error)
}
}
func ExampleClient_DetectFaces() {
ctx := context.Background()
client, err := vision.NewClient(ctx)
if err != nil {
// TODO: handle error.
}
img := vision.NewImageFromURI("gs://my-bucket/my-image.png")
faces, err := client.DetectFaces(ctx, img, 10)
if err != nil {
// TODO: handle error.
}
fmt.Println(faces[0].Face.Nose.Tip)
fmt.Println(faces[0].Face.Eyes.Left.Pupil)
}