Unsupervised Contrast Correction for Underwater Image Quality Enhancement through Integrated-Intensity Stretched-Rayleigh Histograms
Abstract
The attenuation of light that travels through the water medium results the underwater image to suffer from several problems. Low contrast and color performance are the problems that resulting the image to loss important information. In addition, the objects in the image are hardly differentiated from the background. Consequences from these problems, this paper extend the methods of enhancing the quality of underwater image with the aim of improving the image contrast and increase the color performance. The proposed method consists of two stages. At first stage, contrast correction technique is applied to the image. The image is multiplied with a gain factor. The image histogram is divided into two regions at the mid-point and stretched towards the higher and lower intensity values. The composition of these two different intensities images produces contrast-enhanced image. At the second stage, the image is applied with color correction, where the image is converted into Hue-Saturation-Value (HSV) color model. Dividing and stretching of S and V components increase the image color. By considering the contrast and color performance of the output image, the proposed method outperforms the state-of-the-art methodsReferences
N., Shamsudin, Ahmad, W. F. W., Baharudin, B., Rajuddin, M. K. M., Mohd F. “Significance Level of Image Enhancement Techniques for Underwater Images”. International Conference on Computer &
Information Sciences (ICCIS).2012.
R.Schettini, S.Corchs, “Underwater Image Processing: State of the Art of Restoration and Image Enhancement Methods”. EURASIP Journal on Advances in Signal Processing. 2012.
M. S., Hitam, W. N. J. W.,Yussof, E. A., Awalludin, Z. Bachok, “Mixture Contrast Limited Adaptive Histogram Equalization for Underwater Image Enhancement”, IEEE. 2013.
M., Legris, K., Lebart, F., Fohanno, B. Zerr, Les capteurs d’imagerie en robotique sous-marine: tendances actuelles et futures. Traitement du Signal, 20:137-164. 2003.
A., Rizzi, C., Gatta, D., Marini. “A new algorithm for unsupervised global and local color correction”. Pattern Recognition Letters, Vol. 24, No. 11.2003.
Y., Schechner, N., Karpel, “Clear Underwater Vision”. Proceeding of the IEEE Conference on Computer Vision and Pattern Recognition.2004.
Y., Schechner, N., Karpel. “Recovery of Underwater Visibility and Structure by Polarization Analysis”. IEEE Journal of Oceanic Engineering, Vol. 30, No. 3.2005.
N., Bassiou, C., Kotropoulos. "Color image histogram equalization by absolute discounting back-off”, Computer Vision & Image Understanding, vol. 107, no. 1–2, pp. 108–122. 2007.
Y., Kim, “Contrast enhancement using brightness preserving bihistogram equalization”, IEEE Transaction on Consumer Electronics, vol. 43, no. 1, pp. 1-8. 1997.
M.J.N.M,, Naim, N.A.M. ,Isa, “Pixel Distribution Shifting Color Correction for Digital Color Images”. Elsevier: Journal of Applied Soft Computing, Vol. 12, Issue 9, Pg. 2948–2962. 2012.
K., Iqbal, R. A., Salam, A., Osman, A. Z. ,Talib, “Underwater Image Enhancement Using Integrated Color Model”. IAENG International Journal of Computer Science, 34:2 IJCS 34-2-12. 2007.
K., Iqbal, M., Odetayo, A., James, R. A., Salam, A.Z. ,Talib, “Enhancing the Low Quality Images using Unsupervised Color Correction Method”. International Conference on System Man and Cybernatics (SMC).2010.
R., Eustice, O., Pizarro, H., Singh, J.Howland, “Underwater Image Toolbox for Optical Image Processing and Mosaicking in MATLAB”. Proceedings International Symposium on Underwater Technology, ISBN: 0-7803-7397-9. 2002.
R., Garg, B., Mittal, S. Garg, “Histogram Equalization Techniques for Image Enhancement”, International Journal of Electronics and Communication Technology, vol. 2, pp. 107–111.2011.
J.Wu, H., Huang, Y., Qiu, H., Wu, J., Tian, J., Liu. “Remote sensing image fusion based on average radient of wavelet transform”, Proceeding of the IEEE: International Conference on Mechatronics & Automation Niagara Falls, Canada. Vol. 4, pp. 1817-1821. 2005.
Downloads
Published
How to Cite
Issue
Section
License
TRANSFER OF COPYRIGHT AGREEMENT
The manuscript is herewith submitted for publication in the Journal of Telecommunication, Electronic and Computer Engineering (JTEC). It has not been published before, and it is not under consideration for publication in any other journals. It contains no material that is scandalous, obscene, libelous or otherwise contrary to law. When the manuscript is accepted for publication, I, as the author, hereby agree to transfer to JTEC, all rights including those pertaining to electronic forms and transmissions, under existing copyright laws, except for the following, which the author(s) specifically retain(s):
- All proprietary right other than copyright, such as patent rights
- The right to make further copies of all or part of the published article for my use in classroom teaching
- The right to reuse all or part of this manuscript in a compilation of my own works or in a textbook of which I am the author; and
- The right to make copies of the published work for internal distribution within the institution that employs me
I agree that copies made under these circumstances will continue to carry the copyright notice that appears in the original published work. I agree to inform my co-authors, if any, of the above terms. I certify that I have obtained written permission for the use of text, tables, and/or illustrations from any copyrighted source(s), and I agree to supply such written permission(s) to JTEC upon request.