U radu je opisan problem aproksimacije slike poluprozirnim konkavnim poligonima i dano je jedno od mogućih rješenja. Kroz rad također su opisane tehnologije korištene prilikom implementacije rješenja kao i razlozi za njihovo korištenje. Na kraju rada prikazani su neki od rezultata kao i utjecaj mijenjanja različitih parametara na rezultat rada programa.Within this thesis, the problem of approximating an image using only non-opaque concave polygons was described as was one of the possible solutions to that problem. Furthermore, it was described what technologies were used for the implementation of the described algorithm and the reasoning behind the usage. In the end of the thesis there are examples of some images that were generated using t...