Image Super Resolution Using Wavelet Analysis
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 9
Abstract
The aim of image resolution enhancement is to process a given input low resolution image to make the result more desirable than the original image for a given specific application. In the work, we have proposed an image resolution enhancement technique that generates sharper and high resolution output image. The proposed technique utilizes DWT for decomposing low resolution image in separate sub-bands. Then the above three higher frequency band images are interpolated by the utilization of bi-cubic interpolation. This higher frequency bands generated by stationary wavelet transform of the given input image are then increased into the interpolated higher frequency bands in order to correct the coefficients. The given input image is interpolated in parallel. At last, correctly estimated interpolated higher frequency bands and interpolated input image are mixed by utilizing inverse DWT (IDWT) for getting enhanced output image. After that there is a comparison between the conventional techniques for image enhancement and state-of-the-art image enhancement techniques. One level DWT having Daubechies 9/7 as the wavelet function is utilized to decompose given input image into separate band images. The three higher frequency bands (L-H, H-L, and H-H) has the higher frequency contents of the given input image. In this pro-posed method, bicubic interpolation which has increment factor as ‘2’ is then given to higher frequency band images. Due to application of down-sampling in each of the DWT bands there is loss of information in the respective given sub-bands. Hence, SWT is utilized to reduce the losses.
Authors and Affiliations
Radhika S. Karpe, Prof. D. D. Ahire
Keywords
Related Articles
- EP ID EP22640
- DOI -
- Views 219
- Downloads 3
Numerical Analysis of the Bearing Capacity of Stone Columns Improved Ground
Stone columns are a suitable technique for increasing the bearing capacity of soft and weak soils. In this study the results of a series of finite element analyses on square footing rested on both improved and unimprove...
Development of Computer Skills among Generation Z
Gen z requires training in the development of the computer skills that are essential for both the academic and career development. This training should be provided for the gen z with the basic education itself. Gen z ki...
Computer Based Fire Detection System Using Video Image Processing
Image processing stands for the analyzation of an image which results in the calculation and detection of various components of the image such as colour, shape and motion. In this paper, we propose a model which is able...
slugSeccloud Protocol Implementation Using Aes Algorithm For Security And Privacy In Cloud Computing
Cloud computing is a model for enabling convenient, on - demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and servic...
Numerical Analysis and Optimization of Passenger Car Drive Shaft
The main objective of the drive shaft is reduction of weight of passenger car. Drive shaft is one of the most important parts of the vehicle which transfers the motion from gear box to the rear wheel of the vehicle. The...