v3.3.0

Features

Blur filter:

• -b flag to decide the kernel size for the blur filter. The more it increases, the more blurry the output image will be (depending on the sigma value)
• -s sigma flag to blur algorithm. It is optional. The ideal value for that is half the value of b
  Brightness filter:
• -l flag (l for luminance). The value given will be added in luminance channel for each pixel.