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Novel Image Enhancement Technique using CLAHE and Wavelet Transforms
Journal: International Journal of Scientific Engineering and Technology (IJSET) (Vol.5, No. 11)Publication Date: 2016-11-01
Authors : T.V. Hyma Laksmi; T.Madhu; K.Ch. Sri Kavya; Shaik. Esub Basha;
Page : 507-511
Keywords : Contrast limited adaptive histogram equalization(CLAHE); Discrete wavelet transform(DWT); Stationary wavelet transform; (SWT); Bi-cubic interpolation; Peak signal to noise ratio(PSNR);
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Abstract
This paper presents a new method for image enhancement which includes both resolution enhancement and contrast enhancement. The proposed method merges SWT-DWT which is for resolution enhancement and CLAHESWT which is for Contrast enhancement. SWT is used in combination with DWT for enhancing the resolution of an image. (CLAHE) is a powerful method for contrast enhancement.SWT is used in combination with CLAHE to mitigate noise effects. The proposed method gives better results than existing techniques and it is proved with PSNR, Standard Deviation and RMSE and visual results
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Last modified: 2016-11-15 22:17:54