photoprism/internal/entity/photo_quality.go

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package entity
import (
"strings"
"time"
"github.com/photoprism/photoprism/pkg/txt"
)
var QualityBlacklist = map[string]bool{
"screenshot": true,
"screenshots": true,
"info": true,
}
var (
year2008 = time.Date(2008, 1, 1, 0, 0, 0, 0, time.UTC)
year2012 = time.Date(2012, 1, 1, 0, 0, 0, 0, time.UTC)
)
// QualityScore returns a score based on photo properties like size and metadata.
func (m *Photo) QualityScore() (score int) {
if m.PhotoFavorite {
score += 3
}
if SrcPriority[m.TakenSrc] > SrcPriority[SrcEstimate] {
score++
}
if m.TrustedLocation() {
score++
}
if m.TakenAt.Before(year2008) {
score++
} else if m.TakenAt.Before(year2012) && m.PhotoResolution >= 1 {
score++
} else if m.PhotoResolution >= 2 {
score++
}
blacklisted := false
details := m.GetDetails()
if details.Keywords != "" {
keywords := txt.Words(details.Keywords)
for _, w := range keywords {
w = strings.ToLower(w)
if _, ok := QualityBlacklist[w]; ok {
blacklisted = true
break
}
}
}
if !blacklisted {
score++
}
if score < 3 && (m.PhotoType != MediaImage || m.EditedAt != nil) {
score = 3
}
return score
}
// UpdateQuality updates the photo quality attribute.
func (m *Photo) UpdateQuality() error {
if m.DeletedAt != nil || m.PhotoQuality < 0 {
return nil
}
m.PhotoQuality = m.QualityScore()
return m.Update("PhotoQuality", m.PhotoQuality)
}