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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 3 — Jan. 20, 2012
  • pp: 338–347

Noise-suppressed image enhancement using multiscale top-hat selection transform through region extraction

Xiangzhi Bai, Fugen Zhou, and Bindang Xue  »View Author Affiliations

Applied Optics, Vol. 51, Issue 3, pp. 338-347 (2012)

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Enhancing an image through increasing the contrast of the image is one effective way of image enhancement. To well enhance an image and suppress the produced noises in the resulting image, a multiscale top-hat selection transform-based algorithm through extracting bright and dark image regions and increasing the contrast between them is proposed. First, the multiscale top-hat selection transform is discussed and then is used to extract the bright and dark image regions of each scale. Second, the final extracted bright and dark image regions are obtained through a maximum operation on all the extracted multiscale bright and dark image regions at all scales. Finally, by using a weight strategy, the image is enhanced through increasing the contrast of the image by adding the final bright regions on and subtracting the final dark regions from the original image. The weight parameters are used to adjust the effect of image enhancement. Because the multiscale top-hat selection transform is used to effectively extract the final image regions and discriminate the possible noise regions, the image is well enhanced and some noises are suppressed. Experimental results on different types of images show that our algorithm performs well for noise-suppressed image enhancement and is useful for different applications.

© 2012 Optical Society of America

OCIS Codes
(100.2960) Image processing : Image analysis
(100.5010) Image processing : Pattern recognition
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Image Processing

Original Manuscript: May 3, 2011
Revised Manuscript: October 19, 2011
Manuscript Accepted: November 7, 2011
Published: January 18, 2012

Virtual Issues
Vol. 7, Iss. 3 Virtual Journal for Biomedical Optics

Xiangzhi Bai, Fugen Zhou, and Bindang Xue, "Noise-suppressed image enhancement using multiscale top-hat selection transform through region extraction," Appl. Opt. 51, 338-347 (2012)

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