Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2015 Mar 1;15:27. doi: 10.1186/s12903-015-0012-z

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© Wu et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

PMC Copyright notice

Image processing of L-shaped canal. (Stage 1A) the photograph was desaturated before instrumentation; (Stage 1B) the photograph was desaturated after instrumentation; (Stage 2A) the image was converted into vector one before instrumentation; (Stage 2B) the image was converted into vector one after instrumentation; (Stage 3) images pre- and postinstrumentation were superimposed into one after acquiring their central axis; (Stage 4) measuring the distance of central axis pre- and postinstrumentation. The green line, red line and white line represented the central axis of original root canal, the central axis of enlarged root canal, and the outline of root canal respectively.