1. **Problem Statement:**
Evaluate the chain code of the given shape using the 8-direction chain code method.
2. **Understanding Chain Code:**
Chain code represents the boundary of a shape by encoding the direction of movement from one boundary pixel to the next.
3. **8-Direction Chain Code Directions:**
The directions are numbered as follows:
$$\begin{array}{ccc}
3 & 2 & 1 \\
4 & & 0 \\
5 & 6 & 7
\end{array}$$
where 0 is right, 1 is up-right, 2 is up, 3 is up-left, 4 is left, 5 is down-left, 6 is down, and 7 is down-right.
4. **Step-by-Step Evaluation:**
- Start at the top-left boundary pixel of the shape.
- Move clockwise along the boundary.
- For each move from one pixel to the next, record the direction number according to the 8-direction scheme.
5. **Example:**
Assuming the shape's boundary pixels are traced in order, the chain code might look like:
$$\text{Chain code} = 0,0,1,2,3,4,4,5,6,7,0,\ldots$$
6. **Final Answer:**
The exact chain code depends on the shape's boundary pixels. Trace the boundary clockwise, record each direction using the 8-direction code, and list them in order.
This completes the evaluation of the chain code using the 8-direction method.
Chain Code C877Be
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