Block Category: Draw
Input Image Requirements: Gray scale
Inputs:
•image: Gray scale image to which the contour is applied.
•Contour: Indicates the contour of the image.
•Hierarchy: If connected, indicates whether the parent-child contour hierarchy is observed.
Description: The Draw Contour block draws a contour around an image based on three inputs to the block.
You typically use this block in conjunction with the Find Contour block.

Thickness: Specifies the contour’s thickness as an integer greater than 0.
