Tone Mapping 35Methods
We selected six methods that represent a wide range of results from vivid painting-like images to
more subtle smooth output. They all are optimized for speed.
The first two use local operator that adjust the pixels in dependence to their surrounding. This will
produce a vivid, contrast image thanks to its high dynamic range color separation. The results will
often have more painting-like feel and certain wow factor. They work best on typical HDR images with
lots of details and varying high contrast changes such as landscape, skies etc.. They will not perform
well for images with a large smooth surfaces or very subtle gradients where they could enhance a
picture noise.
The third is a combination of Local and Global operator to produce vivid, but yet smooth images.
The last three are global operators with a fast local tone mapping that mostly adjust the image as a
whole. The result is smooth, photographic images. They perform well in any situation if the goal is to
produce a realistic image especially foir further image processing.
Eye Catching
This settings create a vivid images that enhance contrast and color separation. The default settings
are set to minimize noise but still produce high impact images. It is also the most tweakable method
with the many settings.
Brightness - Adjust the brightness of the image.
Color Saturation - adjusting the saturation of colors. Thanks to the local operator the default
saturation of 1.0 already produces a lot of color separation, so the basic adjustment for this settings is
to mostly tone the saturation down for a bit less color.
Vivid Colors - controls the color separation of primary colors - in short the result will be a brilliant basic
colors such as green or red. This is different than Saturation that simply saturate all colors.
Dramatic Light Radius - controls the actual light and contrast distribution and it can significantly
change the way the image feels.
Dramatic Light Strength - the amount of the dramatic light effect
Surface Smoothness - extreme values of Dramatic Light can create banding or a grain noise that can
be attenuated by this process in places with smooth surfaces such as blue sky without clouds, flat
walls etc. This slider will suppress the creation of this artefacts, but it also little softens the effect.