Browsing by Author "Aliyu, Ishola Nasiru"
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Item Accessibility Compliance Evaluation for Small and Medium Enterprises with web platforms in Nigeria(Faculty of Communication and Information Sciences, University of Ilorin, Ilorin., 2019-05-08) Sulyman-Haroon, Shakirat Oluwatosin; Aliyu, Ishola Nasiru; Aliyu, SofiyaWebsites need to be accessible, compliant and conform to the web accessibility rules in order to be used effectively by every individual with disabilities or not. In this study, an attempt was made to check if there is significant effort on the part of business owners in Nigeria to accommodate disabled users by meeting the requirements of all different users using various tools along with observations and testing. This paper thereby seeks to investigate the compliance level of Small and Medium scale enterprises in Nigeria if they meet the basic rules of web accessibility. In this study, a checklist was derived in accordance with the principles of the web content accessibility guidelines. Data were collected across 52 convenient websites distributed across Nigeria. The result showed that there was positive approach by both web designers and business owners towards the adoption of accessible websites for all. With the progression towards the adoption of accessible websites, as a form of business advantage in the current economic environment many businesses found wanting in this regard will in no time follow suit. It is thereby recommend that business owners opt for accessible and correctly design websites.Item Comparative Analysis of Discrete Cosine Transform and Discrete Wavelet Transform on Different Image Files(International Journal of Information Processing and Communication, 2018) Aliyu, Ishola Nasiru; Nwana, O. K.; Sikiru, Ismaeel Abiodun; Imam-Fulani, Yusuf OlayinkaThe process of reducing the quantity of data used in representing certain information content without excessively reducing the quality of the original data is known as compression. It is useful in reducing pre-compression and post compression sizes are considered. Experimentally, result shows that DWT classes: lossless and lossy. It is lossless, if no information is lostduring compression process. A compression is lossy if the reconstructed image or data is not exactly the same as the original. This paper (DCT) and Discrete Wavelet Transform (DWT) on images of differentsizes with differentfile formats - memory space and time for an informationto be transmitted. Data compression can be divided into two JPG, PNG, BMP usingMatlab. Important parameters such as compression ratio, compression efficiency, presents comparative analysis between two lossy compression algorithms –Discrete Cosine Transform performed excellently better than DCT with better compression ratio and higher saving percentage