09-07-2023, 03:58 PM
Use GIMP Hidden Images for Shadow Removal
There are hidden images in the GIMP layer mode display. There is nothing profound about this, the layer mode presents as a solid color. When a filter is applied to the upper layer, the layer mode interaction changes, and an image appears.
The hidden Divide layer mode image together with Colors-Exposure can produce a very effective shadow removal.
1. Duplicate the image.
2. Use the Divide layer mode.
3. Apply Colors-Exposure to the duplicate.
4. Adjust the sliders to make a preliminary image.
5. Adjust the opacity slider for the layer to complete the procedure.
Like any procedure, this one works on some images, not on others.
To capture a hidden image:
1. Apply the filter of choice but do not click OK.
2. Apply Edit Copy Visible and then Paste As New Layer. This will cancel the filter and the layer image will not be affected.
There are hidden images in the GIMP layer mode display. There is nothing profound about this, the layer mode presents as a solid color. When a filter is applied to the upper layer, the layer mode interaction changes, and an image appears.
The hidden Divide layer mode image together with Colors-Exposure can produce a very effective shadow removal.
1. Duplicate the image.
2. Use the Divide layer mode.
3. Apply Colors-Exposure to the duplicate.
4. Adjust the sliders to make a preliminary image.
5. Adjust the opacity slider for the layer to complete the procedure.
Like any procedure, this one works on some images, not on others.
To capture a hidden image:
1. Apply the filter of choice but do not click OK.
2. Apply Edit Copy Visible and then Paste As New Layer. This will cancel the filter and the layer image will not be affected.