Changes between Version 146 and Version 147 of UvmatHelp

Timestamp:

Jan 14, 2015, 2:35:51 PM (9 years ago)

Author:

vaillant1p

Comment:

--

UvmatHelp

@@ -766 +766 @@
 PIV can be performed by selecting the Matlab function ''civ_series'' as '''[!ActionName]''' in the GUI '''series.fig''': then the '''GUI civ_input''' appears to enter the processing parameters. An image file series must have been entered as input of '''series.fig''', or alternatively a Netcdf file resulting form a previous PIV processing (with conventions '''civdata''').
 
-An alternative possibility is to use the older Fortran program ''CivX'' from the GUI '''civ.fig'''. This can be called directly on the Matlab prompt, by typing  ''>>civ'', or from UVMAT by the menu bar command '''[RUN/PIV (old civ)]'''.    '''''''''''
+An alternative possibility is to use the older Fortran program ''CivX'' from the GUI '''civ.fig'''. This can be called directly on the Matlab prompt, by typing  ''>>civ'', or from UVMAT by the menu bar command '''[RUN/PIV (old civ)]'''.
 
 '''-Modes of frame pair indexing''' A first menu '''[!ListCompareMode]''' selects one among four modes of operation:
@@ -824 +824 @@
 The FIX operation is used after civ to remove false vectors, using different criteria: 
 
-''' {warning flags:} ''' these are flags (vec_F) indicating problems with the image correlation process: 
+''' - {warning flags:} ''' these are flags (vec_F) indicating problems with the image correlation process: 
  * vec_F(i)=0 or 1 : default , the processing is fine 
  * vec_F(i)=-2: the maximum of the correlation function is close to the border of the search box (at a distance of two pixels or less), so that its maximum cannot be reliably obtained: the search domain is too small 
@@ -831 +831 @@
  * vec_F(i)=4:only in civ2: the difference between the estimator and the result is more than 1 pixel. The two criteria, vec_F(i)=-2, and 3, should be selected (default options). The criterium vec_F=2 (Hart) should not be selected, while vec_F=4 (for civ2) could be selected only for excellent data (otherwise it may be too strict).   
 
-''' {Threshold on the image correlation:}  ''' (vec_C) can be introduced by the edit box [thresh_vecC] (value between 0 and 1). It removes vectors with poor correlation.  
-
-''' {Threshold on the velocity modulus:} ''' (expressed in pixels): it can remove either too small values  (menu '''[inf_sup1]''' set to '<'), or excessive values (menu '''[inf_sup1]''' set to '>'). Erratic zero velocity vectors, produced by a fixed image background, can be eliminated by this criterium. These criteria can be as well applied to the difference with a reference field, defined by a file series (edit box '''[ref_fix1]''') and a field inside the file (menu '''[field_ref1]'''). 
-
-''' {Mask fix:} '''  It has the same effect as the one used in civ1, but the removed vectors are kept in memory, labelled as false. 
-
-''' {Manual fix:} ''' Interactive fixing with the mouse is also possible, see [section 4.2->#4.2].
-
-''' {Code for FixFlag:} ''' 
+''' - {Threshold on the image correlation:}  ''' (vec_C) can be introduced by the edit box [thresh_vecC] (value between 0 and 1). It removes vectors with poor correlation.  
+
+''' - {Threshold on the velocity modulus:} ''' (expressed in pixels): it can remove either too small values  (menu '''[inf_sup1]''' set to '<'), or excessive values (menu '''[inf_sup1]''' set to '>'). Erratic zero velocity vectors, produced by a fixed image background, can be eliminated by this criterium. These criteria can be as well applied to the difference with a reference field, defined by a file series (edit box '''[ref_fix1]''') and a field inside the file (menu '''[field_ref1]'''). 
+
+''' - {Mask fix:} '''  It has the same effect as the one used in civ1, but the removed vectors are kept in memory, labelled as false. 
+
+''' - {Manual fix:} ''' Interactive fixing with the mouse is also possible, see [section 4.2->#4.2].
+
+''' - {Code for FixFlag:} ''' 
  * !FixFlag(i)=0 :default, everything is fine 
  * !FixFlag(i)=1. : value 1 for the second digit: vector removed by criteria on vec_F or/and low correlation value