An oversampled FIR filter bank design with uniform and nonuniform frequency bands for 2D image

In this paper we propose a real-valued oversampled FIR filter bank where the inband aliasing is significantly reduced. The filter banks are designed for uniform and nonuniform frequency bands and analysis of oversampled filter banks are carried out. Non uniform filter bank designed with proper frequency bands and subsampled factor which gives the resultant near input image. This filter bank applied for 2D image and analysis is carried out using peak signal to noise ratio. DCT image compression technique is used for analysis of output image in terms of peak signal to noise ratio [PSNR] and histogram of compressed input and output image. Proposed filter bank consists of thirty three and twenty five channels, without overlapping of frequency bands.