Version 2 (modified by sommeria, 8 years ago) (diff)


With uvmat, open the example UVMAT_DEMO_FILES/EX06_PIV_challenge_2005_CaseC (representing a jet seeded by particles). We notice that the series contains 60 image pairs, labelled by a number with 3 digits and a letter index a and b. The nomenclature type [NomType], given as the first image index, is therefore '001a'. Activate the menu bar option Run/field series to open the new GUI series.

This GUI is used to launch various processing programs on field series. The program name is selected in the menu [ActionName]. The default option 'check_data_files' just list the set of input files and checks their existence and type.

The lower and upper indices for the input field series are given by first_i, last_i, and first_j, first_j for the second index a~1 and b~2, with an increment incr_i and incr_j for each index. The min and max indices in the sereis are given by the tables [!MinIndex_i], [!MaxIndex_i], [!MinIndex_j], [!MaxIndex_j]. As an example, set first_i=50, last_i=100, incr_i=10, first_j=1, last_j=2, incr_j=1. Pressing [RUN], the function 'check_data_files' is activated and yields the list of file names, with the two last ones, c100a.png and c100b.png, marked as not found.

aver_stat, simple field average

This function provides field average or global statistics on the whole input file series. Let us set first_i=1,last_i=99, incr_i=1. Then run 'aver_stat'. The average image is displayed and stored as Images.stat/c001ab.png.

aver_stat, global statistics

Other statistics can be obtained by aver_stat using a projection object. To create an object, go back to uvmat. Then check Projection object (tag = [CheckObject?]) in series.


This function provides the image intensity at a set of points versus time. First define the set of points as a projection object, using uvmat.