Overview:
- The mode filter replaces each pixel of a Digital image with the mode value of its neighborhood pixel window.
- The class ImageFilter.ModeFilter implements the mode filter.
- As per Pillow's implementation, to consider a pixel value as mode, the value should at least occur twice in the neighborhood. Else the original pixel value is retained in the image.
- The Python example applies the mode filter 7x times to a digital image.
- Similar to the median filter the mode filter as well is an edge preserving filter.
Example:
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# import the required PIL Modules from PIL import Image from PIL import ImageFilter
# Load an image imageObject = Image.open("./nightsky.jpg");
# Show the original image imageObject.show();
# Apply mode filter multiple times modeFilterApplied = imageObject.filter(ImageFilter.ModeFilter); for i in range (0, 6): modeFilterApplied = modeFilterApplied.filter(ImageFilter.ModeFilter);
# Show the image with mode filter applied modeFilterApplied.show(); |
Output:
Before applying the mode filter:
After applying the mode filter 7x times:
