ccl

• Processes a binary (black and white) image to find connected regions
• Compares the color of a pixel to that of its surroundings
• If neighboring pixels are the same color they have the same label
• Uses an equivalence table to reduce number of labels
• In the output image each connected area has a different color
• Usage: python ccl.py [-sf] –i <input_file> [-o <output_file>]
• -sf flag is for a size filter, meaning a filter is applied to remove small pixel regions
• Output is either shown or saved to a file with -o flag

Input Image	Output Image
	Size filter