created a preprocessor Median blur

[rudrapsc]

solved the alignment issue in template.json file of sample 6(OMRChecker\samples\sample6\template.json) along with using median blur as a medium for smoothing .
created a new preprocessor called MedianBlur (OMRChecker\src\processors\builtins.py).

[rudrapsc]

this is the output before editing the code

this is the output after editing the code

[rudrapsc]

I added a plugin class MedianBlur(OMRChecker\src\processors\builtins.py), this plugin uses median blur instead of gaussian blur
median blur is an algorithm based library.
Here, the central element of the image is replaced by the median of all the pixels in the kernel area.
due to this ,the darkened circles appears more clearly and becomes easy to read.

[Udayraj123]

Looks good! Thanks