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《Modern Electronics Technique》 2014-20
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Implementation of Prewitt algorithm parallel based on OpenCL

MA Ge;XIAO Han;College of Information Science & Technology,Zhengzhou Normal University;  
Prewitt algorithm is the most commonly used edge detection algorithm in digital image segmentation,but large amount of calculations and great time consumption are needed to be suffered if traditional CPU serial method is used to implement the algorithm. Therefore,it is important to accelerate its performance by GPU. However,the cross platform transplantation is very difficult because of the difference of GPU hardware system structure. In view of the above questions,a parallel algorithm of Prewitt image edge detection based on OpenCL heterogeneous framework is proposed. The experimental results show that the running speed of the parallel algorithm is faster than that of the serial algorithm in CPU,and its speedup ratio is 30 times as the serial algorithm. It improved the efficiency of large-scale data processing effectively. It has good portability and high application value.
【Fund】: 国家“973”重点基础研究发展计划(2012CB719900);; 中国博士后科学基金(2012M510110);; 河南省重点科技攻关项目(132102310003);; 河南省教育厅科学技术研究重点项目(13A520354)
【CateGory Index】: TP391.41
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