Image enhancement

Automatic Image Enhancement makes various adjustments to the image data to visually enhance the image.

The most important image enhancement steps include exposure and colour cast correction, which change the brightness and colour throughout the image. Exposure correction is about brightening underexposed images, for example, so that more detail becomes visible. Colour cast correction comes into play when, for example, a picture was taken with artificial light and has a strong yellow cast. Well exposed images with good white balance need fewer corrections accordingly.

These so-called global corrections are followed by local image adjustments. For example, dark areas and shadows in the image are brightened to make underexposed faces more visible in backlighting. Likewise, very bright areas of the image, such as white clouds, are somewhat darkened to enable better drawing of details. Local adjustments are also applied on a smaller scale to different colour areas, for example to make the skin tone of different faces appear a little more enriching. Finally, the sharpness of the image may also be adjusted depending on the area.

Depending on the image class, further image enhancement steps may be taken, such as the automatic correction of red eyes or the removal of noise in images taken with high sensitivity. 

Although many corrections are also a matter of personal taste, exposure and colour cast correction, as well as shadow lightening, in most cases result in a significant improvement.

For instance, when creating a Photo Book , we always recommend turning off automatic image enhancement on edited images.


Self-made PNGs

If you use PNGs that you have created and are using transparency, we recommend that you always turn off image enhancement.