Data Cursor and inputting RGB values

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Matthew Houser
Matthew Houser 2016-3-11
评论： Chad Greene 2016-3-11
I am trying to get the RGB values from the Data Cursor in the figure window into my script. Right now, the only values that are inputted are the X and Y position values of the cursor on the image. The RGB values are clearly visible in the figure window, they just get lost in transition? Here is a code I chopped from online, it is too complex, but shows the basic idea. Thanks!
clf;
imshow('Blue Drawn Line.jpg')
cursorobj = datacursormode(1);
while ~waitforbuttonpress %click cursor, then press any key to end
cursorobj.Enable = 'on';
end
cursorobj.Enable = 'off';
getCursorInfo(cursorobj)

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回答（1 个）

Chad Greene
Chad Greene 2016-3-11
  2 个评论
Matthew Houser
Matthew Houser 2016-3-11
Thanks for the prompt reply Chad.
I am unclear on how colorpicker differs from MATLAB's own data cursor RGB display, other than scaling the values. Does colorpicker allow me to input the RGB data into my script for use and further manipulation? Thanks again, Matt
Chad Greene
Chad Greene 2016-3-11
Yes, colorpicker returns RGB values to the workspace and will work either the syntax
[R,G,B] = colorpicker(...)
or
RGB = colorpicker(...)
The colorpicker also allows users to get RGB values of any point on a figure, including colorbars, background color, title text color, etc.

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