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README.md
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demo_label2color.m
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label2color.m

README.md

Image Processing Toolbox using MATLAB - label2color

label2color

LABEL2COLOR Converts Label Matrix to RGB Image with Specified Properties.

RGB = LABEL2COLOR(X) converts a label matrix X into a color RGB image with default properties for the purpose of visualizing the labeled regions.

RGB = LABEL2COLOR(X,PARAM1,VAL1,PARAM2,VAL2,___) converts a label matrix X, specifying parameters and corresponding values that control various aspects of the RGB image. Parameter case does not matter.

PROPERTIES can be a comma-separated list of strings

  • 'ColorMap' - colormap (default 'jet')
  • 'ZeroColor' - background color (uint8/double, default [0 0 0])
  • 'EdgeColor' - edge color (uint8/double, default [255 255 255])
  • 'EdgeWidth' - edge width (default 1)

Class Support

The input label matrix X can have any numeric class. It must contain finite nonnegative integers. RGB is uint8.

Examples

  • Example 1

    RGB = label2color(X);
  • Example 2

    RGB = label2color(X,'colormap','summer');
  • Example 3

    RGB = label2color(X,'ColorMap','hot','ZeroColor',[0 0 1],'EdgeColor',[1 1 1],'EdgeWidth',3);

###Updates

  • 23/12/2015, ver 1.30, support custom colormap
  • 22/12/2015, ver 1.23, add demo
  • 22/12/2015, ver 1.22, 'numregion' should plus 1; set default 'ColorMap' to 'jet'
  • 22/12/2015, ver 1.21, remove 'assignin'
  • 21/12/2015, ver 1.20, support any numeric class
  • 20/12/2015, ver 1.10, modify the code for 'EdgeWidth'

Copyright (C) 2015 Jing Lou (楼竞)