/plates-counting

Scripts to count plates in a video of a manufacturing process

Primary LanguagePython

Plates manufacturing image processor.

This software uses computer vision techniques to process video sequences of a machine used to manufacture plates. It is written in Python using OpenCV to do the processing.

Requirements

  • Python v3+
  • OpenCV v3.4.3
  • Numpvy v1.15.2
  • Matplotlib v2.2.2

How to use

In the command line, go to the src file of this repository, and type the following command:

python main.py path_to_video

path_to_video is the location of the video file to process. The path can be absolute or relative. For instance, for a video which path is ./video/new_video.mp4, the command is the following:

python main.py ./video/new_video.mp4

Options

Image 1. Reference sections of the machine in the frames.

The program has several parameters to set. The options have default values set based on Image 1. The parameters are the following:

  • Parameters for the press:

    • -pxc Horizontal position of the center of the main area of the press. Default value is 188.
    • -phw Half width of the main area of the press. Default value is 40.
    • -pyc Vertical position of the center of the main area of the press. Default value is 118.
    • -phh Half height of the main area of the press. Default value is 24.
    • -pyb Vertical position of the inner area of the press. This value is relative to the main area. Default value is 8.
    • -pbw Half width of the inner area of the press. Default value is 17.
    • -pbh Half height of the inner area of the press. Default value is 12.
    • -ptt Name of one of the built-in trackers in OpenCV. Default value is BOOSTING.

  • Parameters for the shoots:

    • -sx1 Horizontal position of top corner of left shoot. Default value is 137.
    • -sy1 Vertical position of top corner of left shoot. Default value is 198.
    • -sw1 Width of left shoot. Default value is 48.
    • -sh1 Height of left shoot. Default value is 15.
    • -sx2 Horizontal position of top corner of right shoot. Default value is 216.
    • -sy2 Vertical position of top corner of right shoot. Default value is 198.
    • -sw2 Width of right shoot. Default value is 42.
    • -sh2 Height of right shoot. Default value is 15.

  • Parameters for the bands:

    • -bx1 Horizontal position of upper mark in left band. Default value is 200.
    • -by1 Vertical position of upper mark in left band. Default value is 296.
    • -bx2 Horizontal position of upper mark in right band. Default value is 249.
    • -by2 Vertical position of upper mark in right band. Default value is 295.
    • -bx3 Horizontal position of lower mark in left band. Default value is 245.
    • -by3 Vertical position of lower mark in left band. Default value is 474.
    • -bx4 Horizontal position of lower mark in right band. Default value is 344.
    • -by4 Vertical position of lower mark in right band. Default value is 465.
    • -bxd Horizontal position of upper left corner of destination box. Default value is 150.
    • -byd Vertical position of upper left corner of destination box. Default value is 100.
    • -bwd Width of destination box. Default value is 30.
    • -bhd Height of destination box. Default value is 180.

  • Miscelaneous:

    • -o Name of the output video. This option allows the creation of a video with caption of the processing information, as seen in Image 2.

    • -a Flag used for analysis. Default value is False. When the value is True, the program displays windows with images of the processing for the press (Image 3), the shoots (Image 4 and Image 5), and the bands (Image 6).

    • -from Position to start processing the video. It has the following format HH:MM:SS.

    • -to Position to finish processing the video. It has the following format HH:MM:SS.

Image 2. Example of frame in output video.

Image 3. Image of press processing.

Image 4. Image of left shoot processing.

Image 5. Image of right shoot processing.

Image 6. Image of bands processing.

Output

Once the processing is done, the sofware creates several files:

  • Report: It is a csv file with timestamps and values for the state of each processor. The name of the file has the following format:

    `report_[Date and time]_[Simple name of video].csv`.

    The content structure of the report is as follows:

    timestamp plates left plates right press state press moves upper left upper right lower left lower right
    00:00:00 0 0 1 0 0 0 0 0
    00:00:44 37 37 1 39 0 0 0 0

    • timestamp: Time of event.

    • plates left: Number of plates that came out of left shoot.

    • plates right: Number of plates that came out of right shoot.

    • press state: State of the press. 1 is ON, 0 is OFF.

    • press moves: Number of press moves.

    • upper left: State of the first mark in left band. 0 is not reached, 1 is reached.

    • upper right: State of the first mark in right band. 0 is not reached, 1 is reached.

    • lower left: State of the second mark in left band. 0 is not reached, 1 is reached.

    • lower right: State of the second mark in right band. 0 is not reached, 1 is reached.

  • Plots:

    • Press moves: It is a png file showing the signal of press moves created when processing the video. The name of the file has the following format:

      PressCounter_0_[Date and time]_[Simple name of video].csv.

    • Plates counting: They are png files showing the signals of plates counting created when processing the video. The names of the files has the following format:

      PlatesCounter_[Shoot number]_[Date and time]_[Simple name of video].csv.

    • Alarms: It is a png file showing the signal of plates moves over the bands created when processing the video. The name of the file has the following format:

      LineAlarm_3_[Date and time]_[Simple name of video].csv.

  • Miscelaneous:

    • Output video: Available when the option -o has been set.