Changes between Version 26 and Version 27 of Tutorial/ImageDisplay


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Timestamp:
Sep 27, 2013, 1:26:08 PM (7 years ago)
Author:
sommeria
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  • Tutorial/ImageDisplay

    v26 v27  
    2222The frame '''[Scalar]''' on the right hand side indicates the number of pixels (1008, 301) ('''[npx, y]''') along the x and y directions, as well as the min and max brightness of the image (0 and 255). It is possible to change the brightness and contrast of the image display by setting values for these extrema. Pixels with brightness larger than the maximum will appear in white while pixels with brightness lower than the minimum will appear in black. The image histogram (number of pixels for each brigthness value A), is given in the lower left graph.
    2323
     24== True color image ==
     25
     26We 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.
    2427
    2528== Zooming ==