Hi guys, I have a image of a fractured bone x-ray. I want to measure the length of the fracture. How can i do that? I used "imdistline" but it gave me pixels only. Is there any trick to do that. Please have a look on image here http://prntscr.com/lnpw4
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Multiply that distance in pixels by the spatial calibration factor that you calculated in units of mm per pixel. Use imdistline() on a known length, such as an aluminum plate, then get the factor
mmPerPixel = distanceInMM / distance; % distance comes from imdistline()
Then whenever you measure a distance in pixels again, use that calibration factor:
newDistanceInMm = distanceInPixels * mmPerPixel;
distanceInPixels can come from imdistline(), improfile(), regionprops(), or some other way. I hope that solves your problem. It works for me and is the only way it's done in MATLAB as far as I know, so it should work for you too. I hope you say it does when you reply promptly.