Perfect normality, local neighborhood extension spaces, and contractibility of absolute retracts

1964 ◽  
Vol 85 (5) ◽  
pp. 385-391 ◽  
Author(s):  
Byron H. McCandless
Keyword(s):  
Local Neighborhood ◽  
Absolute Retracts ◽  
Perfect Normality ◽  
Extension Spaces

Topologies of the Hyperspace which Are Induced by Extension Spaces

1984 ◽  
Vol 118 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Hans-Jürgen Schmidt
Keyword(s):  
Extension Spaces

Steganographic Method with High Visual Concealment in Wavelet Domain

2013 ◽  
Vol 281 ◽  
pp. 47-50
Author(s):  
Zhi Hong Chen
Keyword(s):  
Wavelet Transformation ◽  
Experimental Results ◽  
Wavelet Domain ◽  
Wavelet Coefficients ◽  
Local Neighborhood ◽  
The Impact

In this paper we propose a new steganographic method, which based on wet paper codes and wavelet transformation. The method is designed to embed secret messages in images' wavelet coefficients and depends on images' texture characters in local neighborhood. The receivers can extract secret bits from carrier images only by some matrix multiplications without knowing the formulas written by senders, which further improves steganographic security and minimizes the impact of embedding changes. The experimental results show that our proposed method has good robust and visual concealment performance and proves out it's a practical steganographic algorithm.

scholarly journals R-theta local neighborhood pattern for unconstrained facial image recognition and retrieval

2018 ◽  
Vol 78 (11) ◽  
pp. 14799-14822 ◽  
Author(s):  
Soumendu Chakraborty ◽  
Satish Kumar Singh ◽  
Pavan Chakraborty
Keyword(s):  
Image Recognition ◽  
Facial Image ◽  
Local Neighborhood
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