Cut-throat finch Cut-throat finch The cut-throat finch ("Amadina fasciata") is a common species of estrildid finch found throughout Africa; it is also known as the bearded finch, the ribbon finch, the cut throat, and the weaver finch. The cut-throat finch has plumage that is pale, sandy brown with flecks of black all over. They have a black-brown tail, a thick white chin and cheeks, and a chestnut brown patch on the belly. The legs are a pink fleshy colour. The adult male has a bright red band across its throat (thus the name "cut throat"), while the male juveniles have a slightly
Purple fringing usually attributed to chromatic aberration as described above, although it is not clear that all purple fringing can be explained this way. Other attributed causes of purple fringing in digital photography include many hypothesized sensor effects: Commonly advocated methods of avoiding purple fringing include: Post-processing to remove purple fringing (or chromatic aberration in general) usually involves scaling the fringed colour channel, or subtracting some of a scaled version of the blue channel, or other blue-channel tricks. Purple fringing In photography (particularly digital photography), purple fringing (sometimes called PF) is the term for an unfocused purple or magenta "ghost" image on