Get color used to draw ROI object
getColor is not recommended. Using the new ROIs, retrieve the color
of the ROI by accessing the value of
Color property instead. For more
information, see Compatibility Considerations.
color — RGB color value
3-element numeric vector
RGB color value, returned as a 3-element numeric vector.
Version HistoryIntroduced before R2006a
getColor is not recommended
Starting in R2018b, a new set of ROI objects replaces the existing set of ROI objects. The new objects provide more functional capabilities, such as face color transparency. The new classes also support events that you can use to respond to changes in your ROI such as moving or being clicked. Although there are no plans to remove the old ROI objects at this time, switch to the new ROIs to take advantage of the additional capabilities and flexibility. For more information on creating ROIs using the new ROI functions, see Create ROI Shapes.
To retrieve the color of the new ROIs, access the value of the
Color property of the ROI.
Update all instances of
|Discouraged Usage||Recommended Replacement|
This example creates an ROI and uses
imshow('cameraman.tif'); h = imrect(gca,[10 10 100 100]); rgb = getColor(h)
Here is equivalent code, replacing the old ROI with the
new ROI object and then accessing the value of the
imshow('cameraman.tif'); h = drawrectangle(gca,'Position',[10 10 100 100]); rgb = h.Color