You can use Split Channel mode and the the Assign Original Image Color slider to add interesting texture to an image.
The intensity information in each RGB channel contributes 1/3 of the intensity to the overall image. If you alter the intensity information in each RGB Channel using Split Channel mode in Lucis and also move the Assign Original Image Color slider to 100% Original, then the color shifts are removed and the image just has the altered contrasts/texture.
In this example I will use Split Channel mode to enhance the Red Channel, then enhance the Blue Channel the same amount, and then drastically enhance the contrasts in the Green Channel so there is an interesting texture added to the image.
To start I opened the image in Photoshop and duplicated it on a layer. (Click here to download the full original image). I selected the duplicate layer and opened Lucis Pro. I checked Split Channels (to enter Split Channel mode) and unchecked Display Composite Image (so I could view the intensity information in each RGB channel). First I enhanced the intensity information in the Red and Blue Channels so the texture in the Green Channel will not overwhelm the image details. I selected the Red Channel and moved the Enhance detail slider to 145. I selected the Blue Channel and moved the Enhance Detail slider to 145. I selected the Green Channel and moved the Enhance Detail slider to 17 and the Smooth Detail slider to 11. The grayscale image in the green Channel was very patterned but this effect will be reduced by 2/3 when I look at the composite image. Lucis Pro UI screen shots below.