I'm not a woman, but do have over a decade of experience looking at pictures of breasts.
To be honest with you, I don't think it would be possible to properly parameterise a boob based on nothing but still images. They all have different centres of mass, different elasticities, different shapes and different textures. Not to mention that different women engage in different activities that require different levels of support.
You might be able to get a fit using 3D scanners plus some sort of standardised jiggle generator, but by that stage you might as well just have a skilled consultant hand you a few different pairs to try on.
To be honest with you, I don't think it would be possible to properly parameterise a boob based on nothing but still images. They all have different centres of mass, different elasticities, different shapes and different textures. Not to mention that different women engage in different activities that require different levels of support.
You might be able to get a fit using 3D scanners plus some sort of standardised jiggle generator, but by that stage you might as well just have a skilled consultant hand you a few different pairs to try on.