This paper presents an automatic technique that removes blotches from archived photographs. In particular, we focus on blotches caused by water and dirt that cause a variable semi-transparency in the degraded region. The proposed digital removal consists of an automatic shrinking of the blotch that preserves the original image details. This operation is based on visibility laws in the wavelet domain. Preliminary experimental results show that the proposed model is also effective on critical blotches produced by dust and dirt. © 2007 Springer-Verlag Berlin Heidelberg.
Digital removal of blotches with variable semi-transparency using visibility laws / Bruni, Vittoria; Andrew, Crawford; Anil, Kokaram; Vitulano, Domenico. - STAMPA. - 4729 LNCS:(2007), pp. 254-263. (Intervento presentato al convegno 2nd International Symposium on Brain, Vision, and Artificial Intelligence, BVAI 2007 tenutosi a Naples nel 10 October 2007 through 12 October 2007) [10.1007/978-3-540-75555-5_24].
Digital removal of blotches with variable semi-transparency using visibility laws
BRUNI, VITTORIA;Domenico Vitulano
2007
Abstract
This paper presents an automatic technique that removes blotches from archived photographs. In particular, we focus on blotches caused by water and dirt that cause a variable semi-transparency in the degraded region. The proposed digital removal consists of an automatic shrinking of the blotch that preserves the original image details. This operation is based on visibility laws in the wavelet domain. Preliminary experimental results show that the proposed model is also effective on critical blotches produced by dust and dirt. © 2007 Springer-Verlag Berlin Heidelberg.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
