Local tone mapping technique of HDR image processing often produces a number of characteristic effects in images such as bright halos around dark objects, dark halos around bright objects, and sometimes a "cartoon-like" appearance due to extremely vivid colors and lack of large-scale color variations. These results are caused by application of geometric space distortion of captured image along with color space distortion, while only color space distortions are a tone mapping effect, and all other distortions are rather a custom filtering technique than any tone or color space mapping. So, the results of local tone mapping are often judged as perverting the nature of a documentalist photographic image and far from photographic realism.