Name

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      IMG_SPLIT

Purpose

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      Returns the color components of a color image.

Category

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Calling Sequence

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      img_split, img, c1, c2, c3

Inputs

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      img = Input image. in

Keyword Parameters

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Keywords

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        /HSV means return HSV color components (def RGB).
        TRUE=tr Interleave dimension (0 means 2-D image).
        NX=nx, NY=ny Image dimensions.
        ERROR=err error flag: 0=ok, 1=not 2-D or 3-D,
          2=wrong number of color channels for 3-D array.

Outputs

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      c1 = component 1. out
      c2 = component 2. out
      c3 = component 3. out
          By default c1,c2,c3 = Red, Green, Blue.
          /HSV requests Hue, Saturation, Value.

Common Blocks

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Notes

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      Note: deals with 2-D or 3-D image arrays.

Modification History

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      R. Sterner, 2001 Mar 27
      R. Sterner, 2001 Jun 18 --- Renamed from img_rgb.pro
      R. Sterner, 2001 Jun 21 --- Renamed from img_splitrgb.pro
      R. Sterner, 2001 Jun 21 --- Added new keyword /HSV.
      R. Sterner, 2010 May 04 --- Converted arrays from () to [].
      R. Sterner, 2010 Sep 08 --- Now allows 1-D arrays.
      R. Sterner, 2011 May 12 --- Handled Alpha channel.
  Copyright (C) 2001, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.