Compare Boundary fill algorithm and Flood fill algorithm. Mention at least two advantages and limitations of both algorithms. Why does boundary fill algorithm fail when boundary is not completely closed? Explain with an example.
Boundary fill algorithm and Flood fill algorithm are both region-filling techniques used in computer graphics to fill a connected area with a specific color, but they differ in their approach and application. Boundary fill algorithm works by starting from a seed pixel and spreading outward until it reaches the boundary color. The algorithm checks neighboring pixels recursively (or using a stack) and fills them until ____ _________ ___ _____ _________ ___ _____ _______ __________.
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