COP290: Assignment 1

About:

The tar file contains one C++ code file and one make file along with two images- empty.jpg and traffic.jpg.

The repo contains one C++ code file and one make file along with one image extracted from the video- bg.jpg which is used as a background.

We have also added our output as out.txt and the chart based on this data as Traffic_Density.png.

Estimated Traffic Density

How to Run the Code:

Part 1-

1. Put the code file and Makefile along with the images in the same folder.
2. Run

   make
   

3. Run

   ./output image
   

   where image = empty or traffic or any other suitable image.
4. Select four images on the displayed grayscale image in clockwise direction i.e. select

   TOP-LEFT -> TOP-RIGHT -> BOTTOM-RIGHT -> BOTTOM-LEFT
   

   The selected point will be shown by a small black dot.
5. The projected image will be displayed. To see the cropped image press any key on keyboard.
6. To exit the program, press any key. The corresponding images will be stored in the same folder.

Part 2-

1. Put the code file and Makefile along with the background image in the same folder.

2. Run

   make
   

3. Run

   ./output video
   

   where video = trafficvideo or any other suitable video file of mp4 type.

4. Three values will be printed on the console-

   Time(in seconds) Queue Density Dynamic Density
   

5. For user's convienence, the above printed values is stored in a csv file named as- output.csv.

Brief Description of the code:

The code takes the source image as input and the user is asked to select four points on the shown image. After selecting four points, the projected image is displayed by performing homography using the user's selected set of points and a seperate set of points already present in the code. Another homography is performed between user's selected points and the four corner of the final cropped image. Corresponding windows are shown for the outputed images.

References-

1. Tutorial 1
2. Tutorial 2

Authors-

• T Abishek - 2019CS10407
• Gaurav Jain - 2019CS10349