Changes between Version 165 and Version 166 of UvmatHelp


Ignore:
Timestamp:
Jan 21, 2015, 3:15:31 PM (6 years ago)
Author:
vaillant1p
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • UvmatHelp

    v165 v166  
    802802  Examples of XML files are provides in /XML_SCHEMAS/ImaDoc_templates.
    803803
    804 ('''[num_CorrBoxSize_1,_2,_3], [iby])''' set the size (in pixels) of the 'correlation box', the sliding window used to get image correlations. '''[num_SearchBoxSize_1,_2,_3]''' set the size of the 'search box' in which image correlation is calculated, see figure.  This search box can be shifted with respect to the correlation box by parameters  ([num_SearchBoxShift_1,_2,_3]). This is useful in the presence of a known mean flow. The default value SearchBoxSize=(25,25) is generally good, use a larger size for images with few particles, use an elongated box , e.g. (11,41), to optimise the resolution in one direction (for instance in a boundary layer).
     804('''[num_!CorrBoxSize_1,_2,_3], [iby])''' set the size (in pixels) of the 'correlation box', the sliding window used to get image correlations. '''[num_!SearchBoxSize_1,_2,_3]''' set the size of the 'search box' in which image correlation is calculated, see figure.  This search box can be shifted with respect to the correlation box by parameters  ([num_!SearchBoxShift_1,_2,_3]). This is useful in the presence of a known mean flow. The default value !SearchBoxSize=(25,25) is generally good, use a larger size for images with few particles, use an elongated box , e.g. (11,41), to optimise the resolution in one direction (for instance in a boundary layer).
    805805
    806806A parameter '''[num_CorrSmooth] ''' controls the smoothing of the image corelation curves used in civ, the default value 1 is generally used.
     
    814814A subregion can be alternatively  selected by a mask image, selecting the edit box '''[MASK]'''. If a mask image with an appropriate name is found in the image directory, it wil be detected, and the indication 'xxmask' appears in the edit box. (xx is the number of slices, equal to 1 for a single mask). Otherwise a browser appears to select a (single) mask file.
    815815
    816 Finally thresholds on image intensity can be introduced to suppress underexposed or overexposed parts of the image: select the check box '''[THRESH],''' and edit the boxes '''[MinIma] ''' and '''[MaxIma] ''' which then appear.
     816Finally thresholds on image intensity can be introduced to suppress underexposed or overexposed parts of the image: select the check box '''[THRESH],''' and edit the boxes '''[!MinIma] ''' and '''[!MaxIma] ''' which then appear.
    817817
    818818The velocity results are stored in the subdirectory set by the edit box '''[subdir_civ1].''' Use the browser''' [list_subdir_civ1]''' to check the existing subdirectories.