Opencv_Shape_Recognizer

An opencv application for detecting and recognizing different shapes of various colors

Building

This program uses the cmake to compile and requires a C++ compiler and the OpenCV library to be installed to be able to compile correctly.

Note: This program was developed for the linux operating system and thus has not been tested for differing operating systems

To compile do the following:

Create a new directory for the build files and enter it. mkdir build && cd build

Call cmake to configure the project. If this command returns errors, recheck that you installed the C++ compiler and the OpenCV library correctly. cmake ..

If cmake has succesfully configured the project you will be able to build the project by doing the following make -j4

Usage

To run the program execute the following command in a terminal: ./recognize -i [path to image file] To recognize shapes in an image. Or ./recognize -c to use the default webcam feed for recognizing shapes.

Command interpreter

After you have done this without any other option you will be greeted by a command prompt that looks like this: input>

Here you can enter a combination of a color and a shape. The following colors are available:

• yellow
• orange
• green
• pink

Which should be followed up by one of the following shapes:

• square
• rectangle
• circle
• half-circle

Then once enter is pressed a window will show the shape of that particular color being recognized

Scripts

You can use the -f option to load a text file containing a series of commands. These scripts may also contains line with a #, all charachter after this will be ignored (for comments and such). You must press a button while focused on the window to advance through the script but you can also use the -d option to set a delay in milliseconds after which the command interpreter will continue with the next line in the file.