Filtering & Noise Removal

Implementation of Linear Filtering & Noise Filtering.

Linear Filtering

Contains a function that implements a 3x3 linear filter on a grey-scale image of NxM pixels. The function takes the following as inputs.

• The filter 3x3 filter mask as a 3x3 integer array
• Input image
• A parameter specifying how the edge pixels should be treated
  • O- omit edge pixels
  • S- shrink filter at edges
  • P-pad the image with black white coloured pixels
  • R-replicate edge rows
  • W-wrap the image

Noise Filtering

Contains following noise filters. Used image wrapping for the edge pixels. Programme automatically read all JPG/JPEG files in the directory and produce filtered image.

• Mean filter
• Median filter
• Mid-point filter

Implementation Details

• Open CV library is used only for read/write the image file.