The HSL Tool in PhotoLab 4 is an improvement on the tool in version three and provides a very intuitive way of managing precise colour ranges across an entire image. Check out the video!

This video shows how I used the tool to accentuate the autumn colours in an unprocessed RAW file.

Disclaimer: This post contains links to  DxO, a company who I am happy to be affiliated with. What this means is that if you download a trial copy form this post, I will get a nice warm feeling and a small reward. You will get a great piece of software!

The HSL Tool in PhotoLab 4

The tool lives in the color section of the tooling, below the familiar tools controlling white balance, color rendering and toning. It consists of a wheel controlling the entire colour spectrum with a “window” that defines the beginning and end point of the range (the two handles on the inside) and the feathering into the neighbouring colours (the two handles on the outside. The single handle on the perimeter of the circle changes the value of the selected range.

DxO have provided a eight colour channels, red, orange, yellow, green, blue, purple and magenta that  give a predefined window. The white dot at the beginning of the row contains all colours,

If you select one of the coloured dots you will immediately see the window DxO have defined. Not all windows are the same – this is common sense if you look at thew heel you will see for example that green has a much broader range than yellow and this is reflected in the size if the predefined range.

Below the wheel you will see sliders for Saturation and, when a coloured dot its selected, Luminance and Uniformity.

The workflow is straightforward – first select your colour range, then adjust the saturation (richness), Luminance (Brightness) and if necessary, Uniformity (homogeneity). Note that the Uniformity slider has the effect  of making the colours in a range more similar. Useful for portraiture.

The white dots under the colour spots along the top tell you which colours have been tweaked.

One use case for the colour wheel is selecting the ranges of colour that are available in the image. This is not always obvious and a neat trick to establish this is to go through the colour wheel spot by spot pushing the saturation to extremes to see if the colour range is present to any degree that would be worth adjusting. Return the slider to almost the mid point and you’ll be able to see after you’ve completed the  sequence, which colours you have to play with.

Another use case is to simply select the colour range via the spot. In the picture I’ve used, it’s easy to see that yellow and orange are good candidates if I want to accentuate the autumn foliage on the trees. I can accept the pre-defined range assigned rot the spot – or I can pull the handles around to refine it for my purposes.

Finally, I can use the dropper in the centre of the wheel to select a colour form my picture.

The video is the first of a series I’m planning to make demonstrating the functionality of the DxO suite of processing tools.

You can download a trial copy of PhotoLab 4 from this link..


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The kit used to create the photograph was:

Camera: Canon 5D S
Lens: Canon EOS 70-300 f4-5.6L

Links:

My YouTube Channel contains video I have had a part in making and photography tutorials. It’s early days right now, but I hope to create a comprehensive collection of videos showing how to carry out basic and advanced tasks in the DxO suite of Processing tools.

How Good is DxO PhotoLab4 is the most popular article I’ve written on PhotoLab.