MATLAB: How to hide the label on imdistline

Image Processing Toolboximdistline

I am trying to hide the pixel lable on the imdistline tool. Below is my code. Thanks!

distLineHandle = imdistline(handles.imageAxes);
api = iptgetapi(distLineHandle);
api.setLabelVisible(false);
pause();
d = api.getDistance;

Best Answer

You can use imline() instead. See attached demo.

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MATLAB: Imdistline

It's in the help, but not a real explicit example like my example for you below:

h = imdistline(gca);
api = iptgetapi(h);
api.setLabelVisible(false);

MATLAB: How to calculate distance in centimeters using IMDISTLINE

Put a ruler, a tape measure, a standard sheet of paper, or anything else of known length into the scene. Then snap a picture of it and use imdistline() to find the length in pixels. For example, let's say you laid down a sheet of A4 paper and measured it's distance as 2100 pixels. Knowing that it is 21 cm long, you get a spatial calibration factor of 21/2100, which you multiply your distances in pixels by to get the distance in cm. Multiply by that calibration factor squared to convert the area in pixels to the area in square centimeters.

calibrationFactor = 21/2100;
distanceInCm = distanceInPixels * calibrationFactor;
areaInSquareCm = areaInPixels * calibrationFactor ^ 2;

It's in the FAQ.

See my demo attached below for a really nice demo.

Best Answer

Related Solutions

MATLAB: Imdistline

MATLAB: How to calculate distance in centimeters using IMDISTLINE

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