As you can see in the image above, we are not erasing the background between the leafs and branches, but that leads us to the Limits option of the Background Eraser Tool. Options in the toolbar allow you to specify the type of erasure, colour tolerance and sampling method. Click in a random part of the sky, hold the left mouse button, and drag the mouse around to erase. When you click the image, the eraser samples the colour at the centre of the brush and erases this colour as you drag. The background eraser tool allows you to remove the background colour from an image or layer. To use this feature, click the left column in the history palette next to the desired state. Only available in brush mode.Д®rase to History: Erases to a saved state or snapshot of the image. Only available in brush mode.ДЄirbrush: Use the eraser as an airbrush. Lower settings produce a more subtle effect. Opacity is not available in block mode.ДЇlow: Determines how quickly the erasure is applied by the brush. Opacity: 100% opacity erases pixels completely, 0% does not erase at all. Mode: There are three options: brush (soft edges), pencil (hard edges) and block (square brush size). Brush options are not available in block mode. When you select the eraser tool, you have various options available in the toolbar:Д«rush: Options include the size of the eraser, hardness of edges and various styles.

Pixels are erased to transparency, or the background colour if the layer is locked. The eraser is basically a brush which erases pixels as you drag it across the image. It has three variations: Eraser, Background Eraser and Magic Eraser. Photoshop's eraser tool can be found in the second group of icons in the toolbox.

Photoshop background eraser not working