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Melhoria de imagem no domÃnio espacial e wavelet
Paperback
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ISBN10: 6200822859
ISBN13: 9786200822857
Publisher: Edicoes Nosso Conhecimento
Published: Jul 26 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786200822857
Publisher: Edicoes Nosso Conhecimento
Published: Jul 26 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: Portuguese
As técnicas de redução de ruÃdo de imagem baseadas em transformações wavelet e filtragem espacial tornaram-se uma ferramenta bastante comum em um grande número de aplicações e áreas de pesquisa. No entanto, a busca por uma técnica eficiente de redução de ruÃdo de imagem ainda é um desafio válido. Não importa quão boa seja a câmara utilizada, a melhoria da imagem é sempre necessária para ampliar o alcance da ação. Até agora, foram introduzidas inúmeras técnicas, mas a maioria delas baseia-se nas propriedades espaciais de uma imagem ou nas propriedades de pixels multirresolução da imagem. Por isso, foi proposto um algoritmo melhorado baseado na combinação de caracterÃsticas de imagens multirresolução e do domÃnio espacial. A metodologia baseia-se num algoritmo inicialmente desenvolvido para imagens visualizadas ou processadas em várias resoluções utilizando limiares de ondas e, posteriormente, são utilizadas técnicas de filtragem espacial para melhorar ainda mais a qualidade da imagem. Este algoritmo de redução de ruÃdo supera as técnicas padrão em termos de várias métricas quantitativas.
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