The pixel effect is done but it would be a very boring effect if we were just to leave it as it is now. So we're going to make it more interesting with an outline. First, press Ctrl+J or go to Layer> Duplicate Layer to create a duplicate of "Layer 1". Then, rename this layer to outline. You can rename layers by double-clicking on the text in the Layers pallet.
Step 6
Make sure that the "outline" layer is selected. Now go to Filter> Stylize> Find Edges. As the name says, this filter finds the edges of the image; perfect for the outline we want to create.
Step 7
We want the outline to be white, so press Ctrl+I or go to Image> Adjustments> Invert to invert the image. This will invert the colors (ex. red becomes blue) and brightness (ex/ black becomes white) just like negative film for cameras.
Step 8
To make this layer blend, simply look in the Layers pallet and change the blend mode to Screen. Now you have a pixel effect with an outline. It's very simple and it makes any pixel effect look nicer. But we're not done yet, it would be too simple of a tutorial if we were to end here.
