Changes between Initial Version and Version 1 of Tutorial/ProjectionObjects


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Timestamp:
Aug 26, 2013, 7:37:00 PM (11 years ago)
Author:
sommeria
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  • Tutorial/ProjectionObjects

    v1 v1  
     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'. 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.
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     3= Plotting a luminosity profile =
     4Create 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'.
     5Draw 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'''.   
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     7= Getting the image histogram in a sub-region =
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     9= Resampling the image =
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