Darkening towards the corners in a photograph. It brings the viewer's attention to the most important part of the photograph.
- Open the image in Gimp
- Create a new layer with layer fill type as Foreground color (Keep the color as black)
- Add a Mask to the layer - Initialise layer mask to white(Full opacity)
- Select the mode as soft light
- Use any of the selection tool
- Select the region
- Bucket fill the selected region
- The region which has been bucket fill is bit brighter than the surrounding region
- Select --> None
- Select filter -> Gaussian blur and play around with the blur radius
- Comparison of image before and after vignette is applied