66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package photoprism
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import (
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"fmt"
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"github.com/photoprism/photoprism/internal/entity"
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"github.com/photoprism/photoprism/internal/query"
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)
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// FacesOptimizeResult represents the outcome of Faces.Optimize().
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type FacesOptimizeResult struct {
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Merged int
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}
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// Optimize optimizes the face lookup table.
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func (w *Faces) Optimize() (result FacesOptimizeResult, err error) {
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if w.Disabled() {
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return result, fmt.Errorf("facial recognition is disabled")
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}
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// Iterative merging of manually added face clusters.
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for i := 0; i <= 10; i++ {
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var n int
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var c = result.Merged
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var merge entity.Faces
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var faces entity.Faces
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// Fetch manually added faces from the database.
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if faces, err = query.ManuallyAddedFaces(); err != nil {
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return result, err
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} else if n := len(faces) - 1; n < 1 {
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// Need at least 2 faces to optimize.
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break
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}
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// Find and merge matching faces.
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for j := 0; j <= n; j++ {
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if len(merge) == 0 {
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merge = entity.Faces{faces[j]}
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} else if faces[j].SubjUID != merge[len(merge)-1].SubjUID || j == n {
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if len(merge) < 2 {
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// Nothing to merge.
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} else if _, err := query.MergeFaces(merge); err != nil {
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log.Errorf("%s (merge)", err)
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} else {
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result.Merged += len(merge)
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}
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merge = nil
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} else if ok, dist := merge[0].Match(entity.Embeddings{faces[j].Embedding()}); ok {
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log.Debugf("faces: can merge %s with %s, subject %s, dist %f", merge[0].ID, faces[j].ID, merge[0].SubjUID, dist)
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merge = append(merge, faces[j])
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} else if len(merge) == 1 {
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merge = nil
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}
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}
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// Done?
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if result.Merged <= c {
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break
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}
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}
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return result, nil
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}
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