| Title: | Measuring isotropic local contrast: a circular mask based approach |
| Authors: | Montrucchio, B. Lamberti, F. Sanna, A. Montuschi, P. |
| Citation: | WSCG '2002: Short Communication Papers: The 10-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision 2002, 4.-8. February 2002 Plzeň: Conference proceedings, p. 83-90. |
| Issue Date: | 2002 |
| Publisher: | UNION Agency |
| Document type: | konferenční příspěvek conferenceObject |
| URI: | http://wscg.zcu.cz/wscg2002/Papers_2002/D79.ps.gz http://hdl.handle.net/11025/6039 |
| ISBN: | 1213-6972 (hardcopy) 1213-6980 (CD-ROM) 1213-6964 (on-line) |
| Keywords: | izotropní lokální kontrast;kruhová maska;zpracování obrazu |
| Keywords in different language: | isotropic local contrast;circular mask;image processing |
| Abstract: | Many image processing tasks depend on contrast measures, which can be used to compare and improve contrast enhancement algorithms. Contrast definitions are not always suitable for all situations. In particular an isotropic local contrast measure, that produces a flat response to sinusoidal gratings, can be difficult to obtain. In this paper we review the main existing contrast measures, and propose a new approach, denoted as Circular Mask Metric (CMM). It is based on band-pass filters and circular mask based local contrast computations. This approach has been applied on different test images and with three contrast enhancement methods, in order to show its potentialities for contrast enhancement algorithm testing and improving. |
| Rights: | © UNION Agency |
| Appears in Collections: | WSCG '2002: Short Communication Papers |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/6039Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.