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fix wrong method name

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ysy 2019-12-13 16:24:08 +08:00
parent e6ce752da1
commit ff4d3d27dd
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doc/py_tutorials/py_gui/py_trackbar/py_trackbar.markdown
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@ -14,7 +14,7 @@ Here we will create a simple application which shows the color you specify. You
shows the color and three trackbars to specify each of B,G,R colors. You slide the trackbar and shows the color and three trackbars to specify each of B,G,R colors. You slide the trackbar and
correspondingly window color changes. By default, initial color will be set to Black. correspondingly window color changes. By default, initial color will be set to Black.
For cv.getTrackbarPos() function, first argument is the trackbar name, second one is the window For cv.createTrackbar() function, first argument is the trackbar name, second one is the window
name to which it is attached, third argument is the default value, fourth one is the maximum value name to which it is attached, third argument is the default value, fourth one is the maximum value
and fifth one is the callback function which is executed every time trackbar value changes. The and fifth one is the callback function which is executed every time trackbar value changes. The
callback function always has a default argument which is the trackbar position. In our case, callback function always has a default argument which is the trackbar position. In our case,