Generating a CAPCHA. Using Example 16.72 as a guide, write a Matlab script to automaticall...

Generating a CAPCHA. Using Example 16.72 as a guide, write a Matlab script to automatically generate eight random lower-case letters, and red, blue, and black background curves that contain eight random line segments each.

Example 16.72

Automated CAPCHA

Figure 16.71 shows a Matlab script that generates automated CAPCHAs.

Figure 16.71

Matlab script generates a CAPCHA.