Sunday, August 19, 2012

How To Highlight an Object or Text in Gimp Without using Channels

By Lorene Troyer

I used to be frustrated with the amount of work it took to highlight an object/text while I was working in Gimp. I was very happy when I found a method that did not involve using channels.  Here are the steps I take:

1. Create a new transparent layer. Make sure it's on the top layer and name it highlight.

2. Select the object or text (that you want to highlight) with alpha to selection (found by right-clicking on the layer in the Layers dialogue box.

3. Fill the selection (on the new layer) with white using the Bucket Fill tool .

4. Using the Move tool, reposition the white object down and and to the right slightly.

5. With the move tool still selected, click selection, the red square kind of towards the bottom of the toolbox.

6. Now move the selection (dotted outline), down and to the right slightly (staying on the white part.)

7. With the highlight layer layer selected, click the delete button on your keyboard. This should leave you with the highlight portion.

8. Click Select -----> None.

9. Now put a sight blur on the highlight layer. Filters -----> Blur -----> Gaussian Blur (about 3 for both the horizontal and vertical).

10. Select the original layer with alpha to selection. Next go to select -----> Invert and then hit the delete button.

You can use the move tool and reposition the highlight if you like. If it goes over the edges after you are done, simply repeat step 10.

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