Easy way to erase background from photos on my Win11 PC?

When the automatic tools have difficulty correctly identifying the subject, Krita provides a way to manually erase the background areas of an image using the selection and transparency tools.

This method gives you greater control over which pixels to remove, especially when the background color is relatively uniform.

How to Erase image background

1. Prepare the layer: Open the image and make sure the working layer supports transparency; add an alpha channel if necessary.

2. Select the Background: Select the Contiguous Selection Tool, then click on the background area you want to remove.

3. Adjust the Selection: If the selected area is too large or too small, adjust the tool settings.

4. Expand the Selection: Hold down the appropriate modifier key or use the selection mode to include other isolated background areas in the selection.

5. Delete Pixels: Press the Delete key to remove the selected background, revealing the transparent area beneath.

6. Check Edges: Zoom in to examine the edges of hair, clothing, and objects, and manually correct any remaining background pixels.

7. Preserve Transparency: To maintain transparency in the transparent areas, export the finished image in PNG format rather than JPEG format.

Although manually erase image background with the selection tool requires more adjustments than automatic removal, it allows you to correct specific problem areas without having to reprocess the entire subject.