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Um olhar sobre as Técnicas de Marca de Água de Imagem Digital

Um olhar sobre as Técnicas de Marca de Água de Imagem Digital

          
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About the Book

O presente trabalho contribui para a protecção da marca de água dos direitos de autor de imagens digitais, e mais especificamente, os métodos integrados de marca de água digital (DIW) representados em publicações iranianas recentes. Para cada um dos métodos, o objectivo final era o de melhorar os atributos da marca de água digital. Dado que, foram propostas e aplicadas em blocos de imagem várias técnicas combinadas ou inovadoras de incorporação de marcas de água. Para cada uma das técnicas propostas, será mencionado o modelo de incorporação da marca de água e os seus parâmetros, bem como as falhas de descompressão e afins, o tipo de possíveis ataques a imagens com marca de água, etc. Quando copiar dados electrónicos, é essencial manter os direitos de autor; por conseguinte, não é possível fazer facilmente a falsificação e manipulação de documentos. Os algoritmos da marca de água são propostos como solução para este problema.Neste trabalho, é representada uma revisão sobre uma série de algoritmos propostos com base em diferentes aspectos, e depois é descrito um algoritmo de alto rendimento denominado metodologia de tabela Sudoku de uma etapa que é mais adequada para a extracção da imagem.


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Product Details
  • ISBN-13: 9786204111674
  • Publisher: Edicoes Nosso Conhecimento
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 100 gr
  • ISBN-10: 6204111671
  • Publisher Date: 26 Sep 2021
  • Height: 229 mm
  • No of Pages: 60
  • Spine Width: 4 mm
  • Width: 152 mm


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Um olhar sobre as Técnicas de Marca de Água de Imagem Digital
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