Changes between Version 1 and Version 2 of Tutorial/ProjectionObjects


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Timestamp:
Aug 28, 2013, 9:55:44 AM (8 years ago)
Author:
sommeria
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  • Tutorial/ProjectionObjects

    v1 v2  
    1 Projection objects are used in various ways for image or field analysis, as shown in the following examples. Let us choose now a color image as input, 'UVMAT_DEMO_FILES/EX02_color/images/frame1.jpg'. We notice in this example that the frame index '1' directly follows the '''[!RootFile]''' 'frame' (without separator '_'), so '''[NomType]''' is '1'. By moving the mouse over the image, we notice that the luminosoty A has thre components, corresponding to the color components rgb (red, green, blue). Similarly the histogram has three curves.
     1Projection objects are used in various ways for image or field analysis, as shown in the following examples. Let us choose now a color image as input, 'UVMAT_DEMO_FILES/EX02_color/images/frame1.jpg'.
     2
     3We notice in this example that the frame index '1' directly follows the '''[!RootFile]''' 'frame' (without separator '_'), so '''[!NomType]''' is '1'. By moving the mouse over the image, we notice that the luminosity A has three color components rgb (red, green, blue). Similarly the histogram has three curves.
    24
    35= Plotting a luminosity profile =
    4 Create a line by the menu bar command ''''Projection Object/line''''. A new GUI 'set_object' appears on the right side, with default settings Type='line', ProjMode='projection'.
    5 Draw a line with the mouse, left hande side button to mark the beginning and end of the line. The luminosity profile, with the three rgb components, appears in a new GUI ''''view_field''''. The line can be moved with the mouse, or by introducing the ccordanates of the line in the table '''[Coord]''' of the GUI '''set_object'''.   
     6Create a line by the menu bar command ''''Projection Object/line''''. A new GUI 'set_object' appears on the right side, with default settings Type='line', !ProjMode='projection'.
     7Draw a line with the mouse, left hande side button to mark the beginning and end of the line. The luminosity profile, with the three rgb components, appears in a new GUI ''''view_field''''. The line can be moved with the mouse, or by directly introducing the coordinates of the line in the table '''[Coord]''' of the GUI '''set_object'''.   
    68
    79= Getting the image histogram in a sub-region =