Turn any photo into a dot grid artwork with these Photoshop actions. You'll get great results with dots that change size. They get larger in brighter areas and smaller in darker areas. Free download available.
Identifying the SaturationFirst, we need to find the areas that are saturated. To do this, we just simply create a layer with no saturation and change the blending mode to Difference.
Step 1Open a photo you would like to edit. Or, you may use the photo used in this tutorial (from iStockPhoto).
Step 2Create a new Hue/Saturation adjustment layer (Layer> New Adjustment Layer> Hue/Saturation). When the Hue/Saturation tool appears, reduce the saturation to -100. Click OK when done.
Step 3Change the blending mode of the adjustment layer to Difference.
Using the Saturation DataNow that we have an image that shows the difference
Step 4Make sure the layer mask is activated. The thumbnail of the layer mask in the layers window should have a white border around it. If it doesn't, click on the thumbnail to activate the layer mask.
Step 5With the layer mask selected, open the Apply Image tool (Image> Apply Image). The default settings should be fine so you may simply click OK if the settings are default:
- Layer: Merged
- Channel: RGB
- Invert: Unchecked
- Blending: Multiply
- Opacity: 100%