The project has a new UI while the readme still shows the windows pop up, which needs to be updated with the new look and feel

Is it possible to have QRcode with multiple data channels to store 3x data?
Possible data splitter: def splitting(data): [return b"0"+data[0::3], b"1"+data[1::3], b"2"+data[2::3]]
And then run those through a QRcode generator, and use red, green, blue channels to pack them?

This spins off issue #19
After testing with several images without QR code, I've seen 3 different outcomes (there might be more I have not discovered). I'm new to this repo and may not able to tackle these immediately.
Further divide-and-conquer might be useful.

1. program finished with QR code output by mistake
   
2. program seemed to get stucked until keyboard interruption
   
3. program exited with error
   

Statements like

if A is None:
    pass

Should be rewritten to the equivalent, but simpler

if not A:
    pass

The codebase should use a common styling convention in order to make it easier for new developers to understand the code. We can use Flake8 to achieve this.

If a path is not valid, an exception should be raised instead of just printing "file not found". This will prevent the confusion caused by the error message when the program continues to execute without a file found.

Line to change: https://github.com/Griffintaur/QRCodeReader/blob/master/Imagehandler.py#L18

Current output when a path is invalid:

suzil@vladimir ~/Documents/random/QRCodeReader $ python call.py 
file not found
Traceback (most recent call last):
  File "call.py", line 36, in <module>
    App()
  File "call.py", line 28, in App
    TransformImage=obj.QRCodeInImage()
  File "/home/suzil/Documents/random/QRCodeReader/Imagehandler.py", line 66, in QRCodeInImage
    patternFindingObj=PatternFinding(self.GetImageContour(),self.imageOriginal)
  File "/home/suzil/Documents/random/QRCodeReader/Imagehandler.py", line 43, in GetImageContour
    thresholdImage= self.__convertImagetoBlackWhite()
  File "/home/suzil/Documents/random/QRCodeReader/Imagehandler.py", line 21, in __convertImagetoBlackWhite
    self.Image=cv.imread(self.ImagePath,cv.IMREAD_COLOR)
AttributeError: 'Imagehandler' object has no attribute 'ImagePath'

Statements like this one in PatternFinding.py

if parent == -1:
            return False
        else:
            return True

Should be rewritten to the equivalent, but simpler

return not (parent == -1)

1. The program call.py shows an error for an input containing no QR, which need to be handled.
2. When an input image contains a rotated image(rotated by some angle), the output of the image shows the identified contours of the input image format, whereas the output image is transformed according to right, top and bottom of contours. For example --
   Input -
   
   and Output -
   

git should not recognize *.pyc files.

suzil@vladimir ~/Documents/random/QRCodeReader $ git status
On branch master
Your branch is up-to-date with 'origin/master'.
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

	modified:   call.py
	modified:   config.yml

Untracked files:
  (use "git add <file>..." to include in what will be committed)

	AffineTransformation.pyc
	FindingOrientationOfContours.pyc
	Imagehandler.pyc
	PatternFinding.pyc

Don't know if you are still maintaining this project. But I found something that might improve this program.
In Imagehandler.py line 56, it seems you convert the raw image to threshold image, and then apply Canny operator on it.
However, Canny operator can directly be applied on grayscale image, and thus reduce infomation loss in such progress.
By changing the parameter cv.Canny (Imagehandler.py line 57) from threshold_image to grayscale_image, will greatly improve the accuracy of the result.