how to measure black triangle between teeth ?

[simran deol]

please help me out,,, wanna know how to measure the gap between teeth, know as black triangle ,,,using imageJ

[ragini rani]

Hello,

I am also stucked with the same issue, Can anybody help me with measuring black triangle between the teeth.

Simran,

Please let me know if you got any breakthrough in this.
Please call me at [phone]

[Alistair]

Hi both,

the simplest option i think would just be to set a scale from a known distance, use a line tool to set the bit you want to measure, then use Analyze > Measure to get the line length based on scale.

Using a base image from google, I have also had a go at a more advanced way of doing it (albeit not knowing what you are looking for exactly).

Base image:

then crop (rectangle tool then Edit > Clear Outside) the image to the area you are interested in (for ease), and convert to a black and white image Image > Type > 8-bit


after that, adjust the brightness and contrast Image > Adjust > Brightness/Contrast to make the gap stand out as much as possible (this makes thresholding much easier). be careful not to over adjust as this may alter the size of the gap


then run a threshold on the image to get a true binary image where the gap is black (255) and the background is white (0) with Image > Adjust > Threshold


from here you can use the Analyze menu to have a play around with what sizes you want to produce.


hope this helps!
Ali

[Taylor74]

Oh that sounds like a big issue. Why don’t you consult a good dentist regarding this? Whenever I have any dental problem I always prefer consulting my dentist Torrance. He provides really good consultation and treatment as well.