Supported functions not supported for code generation?

I am trying to use MATLAB coder to generate a c/c++ standard library. The function uses the hough, houghlines and houghpeaks functions. These functions are all supported for code generation. However when I run the coder, I get issues saying they are not supported for code generation.

Answer 1

[Steven Lord]

Looking at the Image Processing Toolbox Release Notes I see that code generation support for those three functions was added in release R2015b. I'm guessing you're using an earlier release but you were looking at a list of supported functions in the online documentation (which is for the most recent release, currently release R2016a.)