LAB: Grayscale Image Segmentation -Gear
LAB: Grayscale Image Segmentation
I. Introduction
Goal: Defective Gear Inspection System
Plastic gears are widely used in many applications, including toys, RC cars, and plastic-based hardware. Since they are made of plastic, it is fragile and can have broken gear teeth. You are asked to develop a machine vision system that can inspect defective plastic gears.
After analyzing histogram, applying thresholding and morphology, we can identify and extract the target objects from the background by finding the contours around the connected pixels.
II. Procedure
Design algorithms to detect defective gear for given images.
Include a flowchart to explain the algorithm flow.
You should apply image processing algorithms, which you have learnt in class, as much as possible.
If you want to use other algorithms that were not covered in class, then you should briefly explain how that algorithm works.
For the output, you should calculate the following
Number of defective teeth
Diameter of the gear
Quality Inspection (Pass or Fail)
You must explain each process with appropriate results
You MUST include all the following in the report.
A simple flowchart to explain your algorithm
Apply appropriate filters to enhance image
Explain how the appropriate threshold value was chosen (if used)
Apply the appropriate morphology method to segment parts (if necessary)
Find the contour and draw the segmented objects. See Appendix
Explain how to determine the defective teeth
Output Examples
Examples: Output images of each process
III. Report
You are required to write a concise lab report and submit the program files.
First, read LAB Report Instruction
Lab Report:
Use the given Lab Report Template
Show what you have done with concise explanations and example results of each necessary process
In the appendix, show your source code.
You must write the report in markdown file (*.md),
Recommend (Typora 0.x < 1.x) or Notion
When embedding images
Option 1) If you are using local path images: You must include local image folder with the report in zip file
Option 2) Use online link for images.
Submit in both PDF and original documentation file/images
Source Code:
Zip all the necessary source files.
Only the source code files. Do not submit visual studio project files etc.
Appendix
Tip: (contour_demo.cpp)
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