Capsule endoscopic colour image denoising using complex wavelet transform

Abstract

In this paper, wavelet transform based capsule endoscopic colour image denoising method is proposed. Recent research in image denoising methods mainly focused on wavelet transform as its superior performance over other transforms. In this proposed method double density dual tree complex wavelet transform (DDDT-ℂWT) is used due to its ability to implement as complex and multi-directional wavelet transform. Denoising is done in YCbCr colour space, which provides good results in terms of peak signal to noise ratio (PSNR) and structural similarity (SSIM) than RGB colour space. © 2012 Springer-Verlag.