https://github.com/nathancy/opencv-fedex-detector
Real-time Fedex Detector using OpenCV Color Thresholding and Contour Detection through an IP camera stream
https://github.com/nathancy/opencv-fedex-detector
contour-detection fedex-detector ip-camera-frames opencv opencv-color-thresholding opencv-python
Last synced: about 2 months ago
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Real-time Fedex Detector using OpenCV Color Thresholding and Contour Detection through an IP camera stream
- Host: GitHub
- URL: https://github.com/nathancy/opencv-fedex-detector
- Owner: nathancy
- Created: 2018-09-25T00:40:13.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2019-04-02T02:48:41.000Z (about 7 years ago)
- Last Synced: 2025-01-15T07:27:37.341Z (over 1 year ago)
- Topics: contour-detection, fedex-detector, ip-camera-frames, opencv, opencv-color-thresholding, opencv-python
- Language: Python
- Homepage:
- Size: 46.8 MB
- Stars: 1
- Watchers: 2
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# openCV-Fedex-Detector
IP Camera OpenCV Fedex detector. Uses raw OpenCV, no deep learning or trained neural networks. Mainly uses color thresholding and contour detection.
## Example Detection
IP Camera Frame
## Dependencies
```
pip install python-opencv
pip install numpy
pip install playsound
pip install imutils
```
## Overall Algorithm
```
Get camera IP address
Initialize IP camera stream, color thresholds, start subprocess camera frame grabber
While camera is open
Grab frame
Find bounding box for purple
Find bounding box for red/orange
If both bounding boxes are valid
If boxes are adjacent relative to their proximity
If contours pass false positive checks
Combine bounding boxes
Write bounding box on original frame
Play sound notificaiton
Save image on disk
Else show original frame
Else show original frame
```
## Bounding Box Algorithm
```
Transform BGR lower and upper color thresholds into np.arrays
Gaussian blur the frame
Create a kernel 2D matrix
Use kernel to erode frame
Use kernel to dilate frame
Convert BGR to HSV
Create a mask
Find all contours in the mask
Find largest contour and obtain bounding rectangle coordinates
Return x,y,w,h,cX,cY,and largest contour
```
## Example Usage
### fedex_detector.py
Script to capture real-time IP camera frames and detect Fedex using OpenCV color thresholding and contour detection.
```
python fedex_detector.py -s
```
## Utility Scripts
### fedex_single_detector.py
Script to detect Fedex with a given image from disk using OpenCV color thresholding and contour detection.
```
python fedex_single_detector.py
```
### gimptoHSV.py
Convert Gimp HSV values into OpenCV HSV values
```
python gimptoHSV.py
```
### HSV_color_detection.py
HSV color threshold calibration tool
```
python HSV_color_detection.py
```
### people_detector.py
Create bounding boxes around people
```
python people_detector.py
```
### sharpness.py
Blur detection using the variance of Laplacian method to give a floating point value to represent the 'blurryness' of an image. Convolve the input image with the Laplacian operator and compute the variance. If the variance falls below a threshold, mark the image as blurry.
```
python sharpness.py
```
### sharpness_camera.py
Blur detection of real-time IP camera frames using the variance of Laplacian method to give a floating point value to represent the 'blurryness' of an image. Convolve the input image with the Laplacian operator and compute the variance. If the variance falls below a threshold, mark the image as blurry.
```
python sharpness_camera.py
```