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Warum Sie Fotos übermalen statt verpixeln sollten
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TECHBOOK Redaktion
27. März 2017, 14:12 Uhr |
Lesezeit: 1 Minute
Die Verpixelung eines Digitalfotos ist laut einer neuen Google-Studie nicht unumkehrbar. Deshalb ist es ratsam, menschliche Gesichter zu übermalen.
Sollen Gesichter auf Digitalfotos unkenntlich gemacht werden, kommt oft die sogenannte Verpixelung zum Einsatz. Diesen Effekt bieten Bildbearbeitungsprogramme etwa unter der Bezeichnung Mosaikfilter an. Allerdings haben Google-Forscher nun nachgewiesen , dass es möglich ist, aus verpixelten Bildern wieder Gesichter zu berechnen, die dem Original sehr nahe kommen. Darauf weist der Photoindustrie-Verband hin.
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Übermalen sicherer als verpixeln
Wer im Zweifel also nicht Gefahr laufen möchte, dass vermeintlich unkenntlich gemachte Menschen auf Bildern am Ende doch erkannt werden, sollte den Kopf in der Bildbearbeitung großflächig übermalen, raten die Experten. Das sehe zwar nicht so elegant aus wie eine Verpixelung, scheine auf Dauer aber die sicherere Lösung zu sein.
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