Piecewise Linear Model-Based Image Enhancement
A novel technique for the sharpening of noisy images is presented. The proposed enhancement system adopts a simple piecewise linear (PWL) function in order to sharpen the image edges and to reduce the noise. Such effects can easily be controlled by varying two parameters only. The noise sensitivity...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2004-09-01
|
| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1110865704404041 |
| _version_ | 1819178308174086144 |
|---|---|
| author | Fabrizio Russo |
| author_facet | Fabrizio Russo |
| author_sort | Fabrizio Russo |
| collection | DOAJ |
| description | A novel technique for the sharpening of noisy images is presented. The proposed enhancement system adopts a simple piecewise linear (PWL) function in order to sharpen the image edges and to reduce the noise. Such effects can easily be controlled by varying two parameters only. The noise sensitivity of the operator is further decreased by means of an additional filtering step, which resorts to a nonlinear model too. Results of computer simulations show that the proposed sharpening system is simple and effective. The application of the method to contrast enhancement of color images is also discussed. |
| first_indexed | 2024-12-22T21:40:29Z |
| format | Article |
| id | doaj.art-13a6f7ae507d4c38b0c17e597aec6a98 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-22T21:40:29Z |
| publishDate | 2004-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-13a6f7ae507d4c38b0c17e597aec6a982022-12-21T18:11:37ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802004-09-012004121861186910.1155/S1687617204404041Piecewise Linear Model-Based Image EnhancementFabrizio RussoA novel technique for the sharpening of noisy images is presented. The proposed enhancement system adopts a simple piecewise linear (PWL) function in order to sharpen the image edges and to reduce the noise. Such effects can easily be controlled by varying two parameters only. The noise sensitivity of the operator is further decreased by means of an additional filtering step, which resorts to a nonlinear model too. Results of computer simulations show that the proposed sharpening system is simple and effective. The application of the method to contrast enhancement of color images is also discussed.http://dx.doi.org/10.1155/S1110865704404041image enhancementsharpeningnoise reductionnonlinear filters. |
| spellingShingle | Fabrizio Russo Piecewise Linear Model-Based Image Enhancement EURASIP Journal on Advances in Signal Processing image enhancement sharpening noise reduction nonlinear filters. |
| title | Piecewise Linear Model-Based Image Enhancement |
| title_full | Piecewise Linear Model-Based Image Enhancement |
| title_fullStr | Piecewise Linear Model-Based Image Enhancement |
| title_full_unstemmed | Piecewise Linear Model-Based Image Enhancement |
| title_short | Piecewise Linear Model-Based Image Enhancement |
| title_sort | piecewise linear model based image enhancement |
| topic | image enhancement sharpening noise reduction nonlinear filters. |
| url | http://dx.doi.org/10.1155/S1110865704404041 |
| work_keys_str_mv | AT fabriziorusso piecewiselinearmodelbasedimageenhancement |