Adaptive filtering algorithm for mixed noise image based on wavelet transform

zhang libao; ao pengliang

Volume 22 Issue 11

Sep. 2010

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > High Power Laser and Particle Beams > 2010 > 22(11): 0-

wang huang, cao zhensong, wang liusan, et al. Effect of water vapor on spectrum broadening of CO2[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang libao, ao pengliang. Adaptive filtering algorithm for mixed noise image based on wavelet transform[J]. High Power Laser and Particle Beams, 2010, 22.

wang huang, cao zhensong, wang liusan, et al. Effect of water vapor on spectrum broadening of CO2[J]. High Power Laser and Particle Beams, 2010, 22.

Citation:

zhang libao, ao pengliang. Adaptive filtering algorithm for mixed noise image based on wavelet transform[J]. High Power Laser and Particle Beams, 2010, 22.

PDF( 2008 KB)

Adaptive filtering algorithm for mixed noise image based on wavelet transform

zhang libao^1,2,
ao pengliang¹

1.
College of Information Science and Technology,Beijing Normal University,Beijing 100875,China;
2.
State Key Laboratory of Remote Sensing Science,Beijing Normal University,Beijing 100875,China

Publish Date: 2010-09-29

Abstract

Abstract

To filter out salt and pepper noise and Gaussian noise, this paper presents a waveletbased adaptive filtering algorithm for mixed noise. The median filter is firstly applied to remove salt and pepper noise and the edge detection is used to distinguish between the nonedge region and the edge region. Then an improved average filter is adopted on the nonedge region, initially weakening the Gaussian noise, without blurring the edge. Finally, an improved wavelet threshold filtering algorithm is utilized on the entire image, using different threshold functions on different subbands. The parameters of these threshold functions are gained in a linear regression process. The experimental results show that the proposed adaptive mixednoise filtering algorithm can effectively remove salt and
- image processing,
- image denoising,
- edge detection,
- wavelet transform

FullText(HTML)

References(0)

References

Relative Articles

[1]	Liu Liwei, Li Yu, Hu Siyi, Tao Haiyan, Chen Guibo, Tan Xin, Zhang Xihe. Two-photon absorption of CdTe:Mn quantum dots in aqueous solution[J]. High Power Laser and Particle Beams, 2013, 25(02): 350-354. doi: 10.3788/HPLPB20132502.0350
[2]	xu mingxiu, sang fengting, chen fang, fang benjie, jin yuqi. Increasing chemical efficiency by mixing different buffer gases on COIL[J]. High Power Laser and Particle Beams, 2011, 23(07): 0- .
[3]	tao bo, zhao xinyan, hu zhiyun, ye jingfeng, zhang lirong, ye xisheng, liu jingru. On-line measurement of combustion temperature based on TDLAS wavelength modulation technique[J]. High Power Laser and Particle Beams, 2011, 23(06): 0- .
[4]	luo wei, yuan shengfu, zou qianjin, lu qisheng. Gain medium matching for mid- and far-infrared dual-band laser[J]. High Power Laser and Particle Beams, 2011, 23(12): 25-26.
[5]	liao junmei, li yude, li zhonghua, lu ying. Multi-frequency transversely excited atmospheric pressure CO2 laser[J]. High Power Laser and Particle Beams, 2009, 21(10): 0- .
[6]	chang dan, chen meng, xiang xia, ju yongfeng, zu xiaotao. Optical properties of N-doped anatase TiO₂ films prepared by ion implantation[J]. High Power Laser and Particle Beams, 2009, 21(05): 0- .
[7]	liao jun-mei, li yu-de, zhong geng, feng tao, li zhong-hua, liu xiao-yong, ran rui-jiang, chen mei. Output character of sequence band lines of TEA CO2 laser[J]. High Power Laser and Particle Beams, 2008, 20(02): 0- .
[8]	meng fan-jiang, guo li-hong, yang gui-long, li dian-jun. Suppression of electromagnetic interference in high power TEA CO2 laser system[J]. High Power Laser and Particle Beams, 2008, 20(02): 0- .
[9]	xu ming-xiu, sang feng-ting, chen fang, jin yu-qi, fang ben-jie. Effects of buffer gases on output power of COIL[J]. High Power Laser and Particle Beams, 2008, 20(11): 0- .
[10]	li xu-ping, zu xiao-tao, yuan xiao-dong, jiang xiao-dong, zheng wan-guo, tang can, li ke, xiang xia, guo yuan-jun, xu shi-zhen, yuan zhao-lin, . Effects of CO2 laser and vacuum plasma cleanings on silica-oil-and-grease polluted quartz substrates[J]. High Power Laser and Particle Beams, 2007, 19(10): 0- .
[11]	chen jia-yuan, yu wen-feng, yang feng, wu si-ming, zuo dou-luo, cheng zu-hai. Beam quality of unstable resonator of TEA CO2 coaxial output laser with vortex tube cooling system[J]. High Power Laser and Particle Beams, 2007, 19(07): 0- .
[12]	gao xue-xi, wang wen-jun, liu yun-long, tao xu-quan, li shu-hong, li yun. Influence of temperature on absorption spectra and second-armonic generation in azobenzen Langmuir-Blodgett films[J]. High Power Laser and Particle Beams, 2007, 19(12): 0- .
[13]	zhao xiang, zuo du-luo, lu hong, cheng zu-hai. Comparison of several discharge electrodes for TEA CO2 laser[J]. High Power Laser and Particle Beams, 2006, 18(04): 0- .
[14]	xu xue-chun, jiang bo, jiang shao-en, zheng zhi-jian, lin li-bin. Response of radiochromic films to UV irradiation[J]. High Power Laser and Particle Beams, 2006, 18(03): 0- .
[15]	li xiao-fen, zuo du-luo, chen bing, cheng zu-hai. Experimental study on discharge characteristic of a UV-preionized TEA CO2 laser[J]. High Power Laser and Particle Beams, 2004, 16(06): 0- .
[16]	wu cheng jiu, yuan yi qian, cao bai ling, ma zhi jun, gong zhi ben. Highresolution absorption spectra of CO2 near 1.315μm[J]. High Power Laser and Particle Beams, 2003, 15(01): 0- .
[17]	cheng cheng. Optimization of five gas admixtures in a CO2 laser[J]. High Power Laser and Particle Beams, 2002, 14(01): 0- .
[18]	tang hai-bin, wang yun-ping, zhu shou-en, jiang zong-fu. Measurement of small-signal gain on solid propellant combustion driven CO2 gasdynamic laser[J]. High Power Laser and Particle Beams, 2001, 13(06): 0- .
[19]	zhang wei, mironov v d, logvin a b. Noise behavior of pulse in loss switched CO2 laser[J]. High Power Laser and Particle Beams, 2001, 13(01): 0- .