scholarly journals Pixel Value Adjustment for Digital Watermarking Using Uniform Color Space

10.5772/36901 ◽  
2012 ◽  
Author(s):  
Motoi Iwata ◽  
Takao Ikemoto ◽  
Akira Shiozaki ◽  
Akio Ogihar
Keyword(s):  
Digital Watermarking ◽  
Color Space ◽  
Pixel Value

scholarly journals Digital Watermarking Approach Based on Edge Based Sorted Pixel Value Difference (ESPVD)

2016 ◽  
Vol 9 (S1) ◽  
Author(s):  
Venkumahanti Ashok Kumar ◽  
Dharma Raj Cheruku ◽  
Srinivasa Rao Chanamallu
Keyword(s):  
Digital Watermarking ◽  
Pixel Value ◽  
Edge Based ◽  
Pixel Value Difference

Digital watermarking for color images in hue-saturation-value color space

2014 ◽  
Vol 23 (3) ◽  
pp. 033009 ◽  
Author(s):  
Suwat Tachaphetpiboon ◽  
Kharittha Thongkor ◽  
Thumrongrat Amornraksa ◽  
Edward J. Delp
Keyword(s):  
Digital Watermarking ◽  
Color Space ◽  
Color Images

Color Image Encryption Based on the Multiple-Order Discrete Fractional Cosine Transform and Chaos in YCbCr Space

2012 ◽  
Vol 182-183 ◽  
pp. 1839-1843
Author(s):  
Xian Zhe Luo ◽  
Nan Run Zhou ◽  
Qing Min Zhao ◽  
Jian Hua Wu
Keyword(s):  
Image Encryption ◽  
Color Image ◽  
Color Space ◽  
Human Vision ◽  
Transmission Channel ◽  
Color Image Encryption ◽  
Cosine Transform ◽  
Ycbcr Color Space ◽  
Pixel Value ◽  
Encryption Method

Based on the theory that a color image can be decomposed into three primary components and each one can be seen as a gray image, we propose a color image encryption method with multiple-order discrete fractional cosine transform (MODFrCT), which is a kind of encryption with the secrecy of pixel value and pixel position simultaneously. The complex number mode that has a real part and an imaginary one is used in this encryption method to save the transmission channel. Human vision is more sensitive to the Y component than to other two components in YCbCr color space and this color format is used for encrypting the color image. Chaos is introduced to scramble the image phases both in spatial and transformation domains. The numerical simulations demonstrate the validity and efficiency of this scheme and the robustness of the method against occlusion attack is examined.

A Digital Watermarking Algorithm of Color Image Based on Wavelet Transform

2012 ◽  
Vol 263-266 ◽  
pp. 2986-2989
Author(s):  
Yan Min Wang
Keyword(s):  
Image Processing ◽  
Wavelet Transform ◽  
Discrete Cosine Transform ◽  
Digital Watermarking ◽  
Color Image ◽  
Color Space ◽  
Digital Watermark ◽  
Digital Audio ◽  
Cosine Transform ◽  
Digital Audio Watermarking

This paper presents an algorithm by embedding a digital watermark into an original color image. Considering the characteristics of HVS, YUV color space is employed, this algorithm presents a new adaptive digital audio watermarking based on discrete cosine transform. The result of the experiment shows that the proposed algorithm has good robustness against various image processing and attacks, good invisibility and stability.

scholarly journals Image Pixel Value Unification Digital Watermarking Embedding Method based on Quantum Key

2019 ◽  
Vol 15 (8) ◽  
pp. 2277
Author(s):  
Wu Jianan ◽  
Zhang Di ◽  
Wang Huan ◽  
Zhu Dexin ◽  
Song Lijun
Keyword(s):  
Digital Watermarking ◽  
Embedding Method ◽  
Pixel Value
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