|
 |
"Jeremy M. Praay" <jer### [at] questsoftware cmo> wrote:
> It would be great to be able to take relief photographs of real-world
> objects and then have them easily converted into heightfields.
>
> The easiest way, for things like brick walls, is to convert the image to
> gray scale, perhaps invert the tones, maybe adjust the contrast, and then go
> with it. But this can lead to strange things happening in some cases, and
> it generally only tends to work (using the term loosely) for things like
> brick walls, pavement, etc.
>
> I know that there are "shape from shading" filters which can be applied to
> The Gimp, but they don't exactly look like a no-brainer. Has anyone tried
> this approach?
>
> Basically, any advice on this subject would be appreciated.
>
> Thanks.
On my "photos-->heightfields"-experiments, in many cases I got
better results without a conversion to grayscale, but with
the reduction of the Y-scale-factor to a value <1
i.e.
scale <2, 0.3, 2>
Post a reply to this message
|
|
