wehub-resource-sync
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
package backend
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import (
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"context"
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"fmt"
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"github.com/mudler/LocalAI/core/config"
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"github.com/mudler/LocalAI/pkg/model"
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)
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// FaceEmbed loads the face recognition backend and returns a 512-d
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// face embedding for the base64-encoded image. Unlike ModelEmbedding
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// it passes the image through PredictOptions.Images — the insightface
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// backend picks the highest-confidence face and returns its
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// L2-normalized embedding.
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func FaceEmbed(
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ctx context.Context,
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imgBase64 string,
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loader *model.ModelLoader,
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appConfig *config.ApplicationConfig,
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modelConfig config.ModelConfig,
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) ([]float32, error) {
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opts := ModelOptions(modelConfig, appConfig)
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faceModel, err := loader.Load(opts...)
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if err != nil {
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recordModelLoadFailure(appConfig, modelConfig.Name, modelConfig.Backend, err, nil)
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return nil, err
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}
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if faceModel == nil {
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return nil, fmt.Errorf("could not load face recognition model")
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}
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predictOpts := gRPCPredictOpts(modelConfig, loader.ModelPath)
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predictOpts.Images = []string{imgBase64}
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res, err := faceModel.Embeddings(ctx, predictOpts)
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if err != nil {
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return nil, err
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}
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if len(res.Embeddings) == 0 {
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return nil, fmt.Errorf("face embedding returned empty vector (no face detected?)")
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}
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return res.Embeddings, nil
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}
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