Changes between Version 167 and Version 168 of UvmatHelp


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Timestamp:
Jan 21, 2015, 3:59:10 PM (6 years ago)
Author:
vaillant1p
Comment:

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  • UvmatHelp

    v167 v168  
    809809
    810810[[Image(11-2 CV1.png)]]
     811
     812The button '''[TEST]''' allows the user to witness the correlation with a continuous image (in the 'Figure1 Image Correlation' frame which automatically opens) when moving the mouse on the main image. It is even possible to select a point in the image by clicking on it, a new window with the fixed correlation image at this point opens.
     813The image belows shows the correlation process and the '''!SearchBox''' and '''!CorrBox''' explained before.
     814
     815[[Image(civ1_test.jpg)]]
     816[[Image(Correlation for PIV.png)]]
    811817
    812818The grid determines the positions of measured velocity vectors: it sets the central positions of the correlation boxes (in pixels) for the first image. A default regular grid can be set by the meshes '''[num_Dx] ''' and '''[num_Dy]''' (in pixels). Alternatively a custom [grid->#sec3.6_grid] can be stored in a text file and selected by the check box '''[GET_GRID]'''. This is convenient to limitate the processing to a subregion or to fine tune the resolution.