priva13 / Logo_detection

Thumbstack Logo Detection Using Python

Modules used

• opencv
• tkinter
• numpy

How it works

Getting cascade.xml file

• Collectting various Positive Images of Logo
• Collectting various Negative Images of Logo
• Train it using opencv and get cascade.xml file (It is very computational process that can be take much time)

Using tkinter for GUI

• Tkinter is an inbuild module in python
• Using tkinter I added two button on gui
• Added specific Function on each command
• First button is for Detect logo from system's image file
• Second button is for Detect logo in camera frame

Using opencv and cascade.xml file for detection

For First Button

• On clicking first button then open cv2 will get the filepath using filedialog method is tkinter
• Using imread method it will open the image
• Using cvtColor to convert image to grayscale
• Using thumbstack_cascade.detectMultiScale(gray,1.11,5) it will detect the logo
• Using for loop It will draw the rectangle around the logo on image
• And finally I will show the Image using imshow method

For Second Button

• Starting a camera frame using opencv
• In the camera frame while loop It will do the same process as in first button
• In this loop it will detect and the logo and show on the frame rounded with blue rectangle