Piecewise histogram equalization based image enhancement
Piecewise histogram equalization（Piecewise HE） was proposed,which combines the benefits of contrast stretching and existing histogram equalization.The swallow of saturation and brightness is avoided in the enhanced image by a piecewise linear mapping function,which combines with the mean and standar...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2011-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74420065/ |
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| _version_ | 1841537829654495232 |
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| author | CHEN Wen-fei1 LIAO Bin2 XU Xue-feng3 HUANG Zhi-yong1 DONG Wen-yong1 |
| author_facet | CHEN Wen-fei1 LIAO Bin2 XU Xue-feng3 HUANG Zhi-yong1 DONG Wen-yong1 |
| author_sort | CHEN Wen-fei1 |
| collection | DOAJ |
| description | Piecewise histogram equalization（Piecewise HE） was proposed,which combines the benefits of contrast stretching and existing histogram equalization.The swallow of saturation and brightness is avoided in the enhanced image by a piecewise linear mapping function,which combines with the mean and standard deviation of the histogram,and the parameters selection of Piecewise HE is explored when over-enhancement existed.The experimental results have demonstrated that the proposed method can enhance the images effectively,which avoids the swallow and over-enhancement problems of the existing histogram equalization methods.The proposed method not only preserves the original details,but also has a more natural visual effect in the enhanced image. |
| format | Article |
| id | doaj-art-d0d7b7d4514e49b3a84cabeb89dba8e4 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2011-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-d0d7b7d4514e49b3a84cabeb89dba8e42025-01-14T08:23:29ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2011-01-013215316074420065Piecewise histogram equalization based image enhancementCHEN Wen-fei1LIAO Bin2XU Xue-feng3HUANG Zhi-yong1DONG Wen-yong1Piecewise histogram equalization（Piecewise HE） was proposed,which combines the benefits of contrast stretching and existing histogram equalization.The swallow of saturation and brightness is avoided in the enhanced image by a piecewise linear mapping function,which combines with the mean and standard deviation of the histogram,and the parameters selection of Piecewise HE is explored when over-enhancement existed.The experimental results have demonstrated that the proposed method can enhance the images effectively,which avoids the swallow and over-enhancement problems of the existing histogram equalization methods.The proposed method not only preserves the original details,but also has a more natural visual effect in the enhanced image.http://www.joconline.com.cn/zh/article/74420065/image enhancementhistogram equalizationpiecewise equalizationdetail preserving |
| spellingShingle | CHEN Wen-fei1 LIAO Bin2 XU Xue-feng3 HUANG Zhi-yong1 DONG Wen-yong1 Piecewise histogram equalization based image enhancement Tongxin xuebao image enhancement histogram equalization piecewise equalization detail preserving |
| title | Piecewise histogram equalization based image enhancement |
| title_full | Piecewise histogram equalization based image enhancement |
| title_fullStr | Piecewise histogram equalization based image enhancement |
| title_full_unstemmed | Piecewise histogram equalization based image enhancement |
| title_short | Piecewise histogram equalization based image enhancement |
| title_sort | piecewise histogram equalization based image enhancement |
| topic | image enhancement histogram equalization piecewise equalization detail preserving |
| url | http://www.joconline.com.cn/zh/article/74420065/ |
| work_keys_str_mv | AT chenwenfei1 piecewisehistogramequalizationbasedimageenhancement AT liaobin2 piecewisehistogramequalizationbasedimageenhancement AT xuxuefeng3 piecewisehistogramequalizationbasedimageenhancement AT huangzhiyong1 piecewisehistogramequalizationbasedimageenhancement AT dongwenyong1 piecewisehistogramequalizationbasedimageenhancement |