Documentation
¶
Overview ¶
Package vision is an auto-generated package for the Cloud Vision API.
Integrates Google Vision features, including image labeling, face, logo, and landmark detection, optical character recognition (OCR), and detection of explicit content, into applications.
NOTE: This package is in beta. It is not stable, and may be subject to changes.
General documentation ¶
For information that is relevant for all client libraries please reference https://pkg.go.dev/cloud.google.com/go#pkg-overview. Some information on this page includes:
- Authentication and Authorization
- Timeouts and Cancellation
- Testing against Client Libraries
- Debugging Client Libraries
- Inspecting errors
Example usage ¶
To get started with this package, create a client.
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
The client will use your default application credentials. Clients should be reused instead of created as needed. The methods of Client are safe for concurrent use by multiple goroutines. The returned client must be Closed when it is done being used.
Using the Client ¶
The following is an example of making an API call with the newly created client.
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &visionpb.BatchAnnotateImagesRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/vision/v2/apiv1p1beta1/visionpb#BatchAnnotateImagesRequest.
}
resp, err := c.BatchAnnotateImages(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
Use of Context ¶
The ctx passed to NewImageAnnotatorClient is used for authentication requests and for creating the underlying connection, but is not used for subsequent calls. Individual methods on the client use the ctx given to them.
To close the open connection, use the Close() method.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func DefaultAuthScopes ¶
func DefaultAuthScopes() []string
DefaultAuthScopes reports the default set of authentication scopes to use with this package.
Types ¶
type ImageAnnotatorCallOptions ¶
type ImageAnnotatorCallOptions struct {
BatchAnnotateImages []gax.CallOption
}
ImageAnnotatorCallOptions contains the retry settings for each method of ImageAnnotatorClient.
type ImageAnnotatorClient ¶
type ImageAnnotatorClient struct {
// The call options for this service.
CallOptions *ImageAnnotatorCallOptions
// contains filtered or unexported fields
}
ImageAnnotatorClient is a client for interacting with Cloud Vision API. Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.
func NewImageAnnotatorClient ¶
func NewImageAnnotatorClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error)
NewImageAnnotatorClient creates a new image annotator client based on gRPC. The returned client must be Closed when it is done being used to clean up its underlying connections.
Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.
Example ¶
package main
import (
"context"
vision "cloud.google.com/go/vision/v2/apiv1p1beta1"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
// TODO: Use client.
_ = c
}
Output:
func NewImageAnnotatorRESTClient ¶
func NewImageAnnotatorRESTClient(ctx context.Context, opts ...option.ClientOption) (*ImageAnnotatorClient, error)
NewImageAnnotatorRESTClient creates a new image annotator rest client.
Service that performs Google Cloud Vision API detection tasks over client images, such as face, landmark, logo, label, and text detection. The ImageAnnotator service returns detected entities from the images.
Example ¶
package main
import (
"context"
vision "cloud.google.com/go/vision/v2/apiv1p1beta1"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := vision.NewImageAnnotatorRESTClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
// TODO: Use client.
_ = c
}
Output:
func (*ImageAnnotatorClient) BatchAnnotateImages ¶
func (c *ImageAnnotatorClient) BatchAnnotateImages(ctx context.Context, req *visionpb.BatchAnnotateImagesRequest, opts ...gax.CallOption) (*visionpb.BatchAnnotateImagesResponse, error)
BatchAnnotateImages run image detection and annotation for a batch of images.
Example ¶
package main
import (
"context"
vision "cloud.google.com/go/vision/v2/apiv1p1beta1"
visionpb "cloud.google.com/go/vision/v2/apiv1p1beta1/visionpb"
)
func main() {
ctx := context.Background()
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in:
// https://pkg.go.dev/cloud.google.com/go#hdr-Client_Options
c, err := vision.NewImageAnnotatorClient(ctx)
if err != nil {
// TODO: Handle error.
}
defer c.Close()
req := &visionpb.BatchAnnotateImagesRequest{
// TODO: Fill request struct fields.
// See https://pkg.go.dev/cloud.google.com/go/vision/v2/apiv1p1beta1/visionpb#BatchAnnotateImagesRequest.
}
resp, err := c.BatchAnnotateImages(ctx, req)
if err != nil {
// TODO: Handle error.
}
// TODO: Use resp.
_ = resp
}
Output:
func (*ImageAnnotatorClient) Close ¶
func (c *ImageAnnotatorClient) Close() error
Close closes the connection to the API service. The user should invoke this when the client is no longer required.
func (*ImageAnnotatorClient) Connection
deprecated
func (c *ImageAnnotatorClient) Connection() *grpc.ClientConn
Connection returns a connection to the API service.
Deprecated: Connections are now pooled so this method does not always return the same resource.
Source Files
Directories