VeprIT Photo Sense - Quick Tips (Processing Options Recipes)
This page describes several common problems encountered with automatic image processing in Photo Sense, and proposes possible solutions.
See the DOPhoto photography blog for general photography advices, from photo shooting to post-processing in software, with a focus on Photo Sense.
Strange artifacts in red colors
The Preserve Skin Color Saturation processing option is useful to avoid unnatural red skin colors (see wrong human skin colors). Sometimes it can, however, create strange color artifacts in areas with multiple reddish/yellowish colors, possibly gradients. In the example below strong artifacts are visible around the sun when the Preserve Skin Color Saturation option is on. When this option is off, the artifacts disappear.
In general, we recommend to switch the Preserve Skin Color Saturation option off for images without people, such as landscapes. Landscape photographers might want to switch this option off by default in Preferences (see default processing options).
Wrong human skin colors
Experience shows that Photo Sense often over-saturates human skin tones, producing too red or purple, unnatural colors. This can usually be solved by disabling the Increase Saturation processing option. This, however, affects the whole image. Starting from version 1.1.1, Photo Sense offers a special processing option to solve this problem. With the Preserve Skin Color Saturation processing option enabled, Photo Sense only increases saturation of colors that, in its opinion, cannot represent a human skin. The screenshots below compare a photograph processed without and with the Preserve Skin Color Saturation option:
Disabling the Adjust Colors processing option might also help if the skin colors still look wrong.
Wrong colors
The first image shows a case when the automatic color adjustment has failed, producing an image with an obvious purple color shift. The second image shows the same photograph processed with the Adjust Colors option disabled.
Wrong exposure
Some people would prefer the first image to be darker, as it is a night shot. To prevent Photo Sense from brightening it, the Adjust Exposure processing option is disabled in the second picture. Moreover, somebody might prefer the yellow lights to be more orange, as in the original image. This can be achieved by disabling the Adjust Colors processing option. Note, however, that in this case the sky will not have such a deep blue color.