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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Attachoo, B. Pattanasethanon, P. |
| Copyright Year | 2009 |
| Description | Author affiliation: Department of Information Technology, King Mongkut's Institute of Technology Ladkrabang, Bangkok Province, Thailand (Pattanasethanon, P.) || Department of Computer Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand (Attachoo, B.) |
| Abstract | A unique method of image filtering has been developed that enhances the detail and sharpens the edges of colored satellite images. Histogram equalization coupled with a two stage data filtering process that applies convolution with laplacian and sharpening with laplacaian through the 3 color bands that produce the colored satellite images has yielded sharper clearer images. The initial enhancement using histogram equalization was followed by the first stage of a filtering process convolution with laplacian which highlighted the edges of the image. The application of the second stage filtering sharpening with laplacian yielded enhanced color reproduction and a more accurate depiction of information at sea and land levels than was available in the original image. An analysis of the statistical index and signal to noise ratio of the true color and false color of histogram equalization, convolution with laplacian and sharpening images showed the image. An analysis of the false color of histogram equalization, convolution with laplacian and sharpening images showed the image to be superior, in this study the multi spectral content in the satellite image was transformed into a composite colour image, and then convoluted using the laplacian technique. This study placed an emphasis on improving the detail and edge clarity of satellite images. |
| Starting Page | 1365 |
| Ending Page | 1370 |
| File Size | 1336029 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424426782 |
| DOI | 10.1109/ROBIO.2009.4913199 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-02-22 |
| Publisher Place | Thailand |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Satellites Image enhancement Laplace equations Image color analysis Histograms Convolution Colored noise Image analysis Information filtering Information filters Satellite image Image Enhancement Laplacian sharpening filtering |
| Content Type | Text |
| Resource Type | Article |
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