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How can I plot histogram matlab to uiaxes APP designer?

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Jenifer NG
Jenifer NG 2022-8-15
评论： Jenifer NG 2022-8-15
Hi Everyone,
Could some one know how to plot histogram of an image to uiaxes ?
This is my code:
v = videoinput("winvideo", 2, "YUY2_640x480"); % capure image from webcam
v.ReturnedColorspace = "grayscale"; % convert to gray
v.ROIPosition = [133 114 410 300]; % crop image
snapshot1 = getsnapshot(v); % capture image
imhist(snapshot1,app.UIAxes) % Plot historam
Thanks all!
Han

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Cris LaPierre
Cris LaPierre 2022-8-15
imhist is not supported in App Designer yet (as best I can tell). However, you may be interested in this example, which uses histogram instead to show the red, green and blue content of an image.
https://www.mathworks.com/help/matlab/creating_guis/image-histogram-gui-in-app-designer.html
Or open directly in MATLAB with the following command
openExample('matlab/AppdImageHistogramsExample')

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