High Performance and Energy Efficient Sobel Edge Detection

2021 ◽  
pp. 104368
Author(s):  
Thaufig Pengo ◽  
Panyayot Chaikan
2015 ◽  
Vol 1 (4) ◽  
pp. 1-12
Author(s):  
Chidadala Janardhan ◽  
◽  
Bhagath Pyda ◽  
J. Manohar ◽  
K. V. Ramanaiah ◽  
...  

Author(s):  
Xiaolin Tang ◽  
Xiaogang Wang ◽  
Jin Hou ◽  
Huafeng Wu ◽  
Ping He

Introduction: Under complex illumination conditions such as poor light sources and light changes rapidly, there are two disadvantages of current gamma transform in preprocessing face image: one is that the parameters of transformation need to be set based on experience; the other is the details of the transformed image are not obvious enough. Objective: Improve the current gamma transform. Methods: This paper proposes a weighted fusion algorithm of adaptive gamma transform and edge feature extraction. First, this paper proposes an adaptive gamma transform algorithm for face image preprocessing, that is, the parameter of transformation generated by calculation according to the specific gray value of the input face image. Secondly, this paper uses Sobel edge detection operator to extract the edge information of the transformed image to get the edge detection image. Finally, this paper uses the adaptively transformed image and the edge detection image to obtain the final processing result through a weighted fusion algorithm. Results: The contrast of the face image after preprocessing is appropriate, and the details of the image are obvious. Conclusion: The method proposed in this paper can enhance the face image while retaining more face details, without human-computer interaction, and has lower computational complexity degree.


2019 ◽  
Vol 15 (4) ◽  
pp. 1-21
Author(s):  
Bing Li ◽  
Mengjie Mao ◽  
Xiaoxiao Liu ◽  
Tao Liu ◽  
Zihao Liu ◽  
...  

Nano Energy ◽  
2021 ◽  
Vol 82 ◽  
pp. 105717
Author(s):  
Min-Ci Wu ◽  
Jui-Yuan Chen ◽  
Yi-Hsin Ting ◽  
Chih-Yang Huang ◽  
Wen-Wei Wu

2021 ◽  
Vol 11 (11) ◽  
pp. 5288
Author(s):  
Manuel Henriques ◽  
Duarte Valério ◽  
Rui Melicio

Nowadays, satellite images are used in many applications, and their automatic processing is vital. Conventional integer grey-scale edge detection algorithms are often used for this. This study shows that the use of color-based, fractional order edge detection may enhance the results obtained using conventional techniques in satellite images. It also shows that it is possible to find a fixed set of parameters, allowing automatic detection while maintaining high performance.


Author(s):  
Wei-Song Hung ◽  
Subrahmanya T M ◽  
Po Ting Lin ◽  
Yu-Hsuan Chiao ◽  
Januar Widakdo ◽  
...  

Membrane distillation (MD) based desalination process is thought to be a promising strategy to address global challenges such as safe water-energy crisis and environmental pollution. Here, we demonstrate a novel...


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