Therefore vision analysis techniques such as edge detection integrate well with the construction of diffusion curves and so they can facilitate the vectorization of real images and their later manual editing .
More subtle shading may also be represented as if it were caused by edges .
Vision analysis techniques such as edge detection integrate well with the construction of diffusion curves and so they can facilitate the vectorization of real images and their later manual editing .
More subtle shading may also be represented as if it were caused by edges .