This GIMP (GNU) tutorial demonstrates how to apply a Gradient Flare to a photograph. To work along, you are welcome to download the Start Image I am working with Here. Unzip the file and open the image onto GIMP’s workspace.
You can quickly Undo a step at any time by pressing Ctrl then Z. Alternatively, click a previous Undo History snapshot - Windows then Dockable Dialogues then click Undo History. In addition, to Zoom in (or Zoom out) of your image; from the top menu choose View then select a Zoom Tool from the subsequent drop-down list.
Remove Colour From Images
Launch GIMP & Organise Its Workspace & Palettes
Open your choice of Start Image onto GIMP’s workspace - File then Open - Ctrl then O.
Ensure the Layers and the Undo History Palettes are visible, and then drag them into position over your workspace - (Windows then Dockable Dialogues - then click Layers and Undo History).
Then from the top menu, choose Colours then choose Components and then choose Channel Mixer. Now, from the subsequent Channel Mixer dialogue box, mark the Monochrome box, and then enter the following settings, or experiment, and then click OK.
Now, from the top menu, choose Colours then choose Levels. And from the subsequent Levels dialogue box, move the White and Grey Point Sliders to the following positions, and then click OK.
Then from the top menu, choose Filters then choose Light And Shadow and then choose Gradient Flare. And from the subsequent Gradient Flare dialogue box, (from beneath Selector tab), left-click to activate a Flare of your choice. I have chosen a Flare named GFlare_101. (Don’t click OK).
Then click the Settings tab, and set Flare attributes of your choice.
(Don’t click OK).
Now, from the dialogue box’s left-side menu, (using the Cross Hairs as a guide),
left-click once over an area you would like your Flare to be positioned. If you are happy with the Flare’s final position, click OK. (If not, keep left-clicking to move the Flare to a position you are happy with, and then click OK).
To create extra impact, apply a Sharpening Filter of your choice - Filters then Enhance.
Congratulations, your High Contrast Black & White (with a Gradient Flare) Conversion is complete, and it is ready to save - top menu, then File then Save As.
GIMP 2.8 - File then Export. Save Images Tutorial.
Wendi E. M. Scarth. Top of Page.