2,021 research outputs found

    The impact of the Hargreaves Review on photographers in the digital age.

    Get PDF
    This article revisits some of the questions raised in my undergraduate dissertation in 2005 looking at Online Digital Image Copyright and the adequacy of then current legislation to protect the Intellectual Property Rights of photographers. This article is intended to be an initial exploration of developments since 2005 and the possible impacts on photographers in a digital age

    A Digital Image Copyright Protection Scheme Based on Visual Cryptography

    Get PDF
    [[abstract]]A simple and efficient watermark method is proposed in this paper. The watermark method is an excellent technique to protect the copyright ownership of a digital image. The proposed watermark method is built up on the concept of visual cryptography. According to the proposed method, the watermark pattern does not have to be embedded into the original image directly, which makes it harder to detect or recover from the marked image in an illegal way. It can be retrieved from the marked image without making comparison with the original image. The notary also can off-line adjudge the ownership of the suspect image by this method. The watermark pattern can be any significant black/white image that can be used to typify the owner. Experimental results show that the watermark pattern in the marked image has good transparency and robustness. By the proposed method, all the pixels of the marked image are equal to the original image.[[notice]]補正完

    Emerg Infect Dis

    Get PDF
    John August Swanson (1938\u20132021), The Carousel, 1975. Silkscreen in 29 colors on white wove paper, 26.5 in x 31 in/67.3 cm 7 78.7 cm. Image copyright \ua9 John August Swanson, 1975 122022. Digital image from Tate.2022PMC89628791123
    corecore