destripe

Contents: Description, Arguments, Usage, Examples, Images, Sub-Functions, Related Functions, Source Supported Under Version: >1.00 Current .dvrc Version: 1.04 Description Remove vertical or horizontal stripes from an image Arguments and Return Values Arguments: A data array containing line or row correlated single-pixel width noise Return Value: The cleaned data array of same size and organization of the input Usage Syntax: destripe(in, dir, option, [filter], [thres], [sxnoise], [exnoise], [synoise], [eynoise], [start], [end]) dir = 'x' to remove horizontal stripes dir = 'y' to remove vertical stripes option 1: Do low-pass, high-pass, difference option 2: Do low-pass, high-pass, threshold, difference option 3: Do low-pass, high-pass, threshold, redo low-, high-pass, difference option 4: Do low-pass, high-pass, threshold, replace spike columns (rows) with average of neighbors option 5: Do high-pass using image ave., difference, add back low-pass dir = 'x' transposes image x to y - does correction - then transposes back [sxnoise, exnoise, synoise, and synoise] are optional start and end x,y value to determine noise in image defaults to full image [start] and [end] are optional start and end values (x or y as appropriate) of region to apply noise removal NOTE: when doing x-direction, sxnoise, exnoise, etc all corrspond to x, y values AFTER transpose has been applied [filter] set low-pass filter value (default = 9) [thresh] set spike threshold value (default = 2 * sigma) Examples Images translate convolve stddev filterx filtery

DavinciWiki Mini-Nav Bar Contents Functions Function Categories Common Procedures Glossary Download Davinci Change Log News Mailing List Contact Developers davinci-dev [AT] mars.asu.edu All other topics See navigation on the left Major Sub-Functions thm.deplaid Related Functions destripe() themis_science.dvrc destripe() Recent Library Changes Change Log Created On: 02-15-2006 Modified On: 01-17-2008