can be used to touch up the mistakes you may have made while painting.
Think of eraser
tool as paintbrushes in reverse. Instead of laying down color, they pick it
up.The eraser tool changes pixels in the image as you drag through them. You
can limit the erasing area in an image my making a selection.If you are applying
the eraser to the background layer, or to any layer with Preserve Transparency
selected, the erased area will be filled with the current background color.
Otherwise it will erase to transparency with the exception of when you are erasing
to a history state.
eraser tool changes pixels in the image and the layer
below is seen now.
Select the eraser tool from the toolbox and drag the tool through the area you
want to erase. By default the eraser is the same shape and size as the default
paint brush. Double-click the eraser tool to display its Options palette.
(1) Choose the tool type you want to use as an eraser—paintbrush, airbrush,
pencil, or block.
(2) Specify the opacity, fade-out rate, and stylus options.
(3) When using the paintbrush option, select Wet Edges to erase with
a watercolor effect. This option causes the erased effect to build up along
the edges of the brush stroke.
(4)To erase to a saved state or snapshot of the image, select Erase to
History. To use the eraser tool in Erase to History mode, hold down Alt as you
drag in the image.
background eraser tool erases areas to transparency by dragging. The background
eraser erases the color on which you first click, while leaving other colors
untouched. The background eraser cursor has a crosshair in its center showing
the hotspot which is used to choose the colors affected, according to your settings
in the options palette.
Options palette: Double-click
the backgrounderaser tool to display its Options palette.
Choose an eraser from the Options palette menu:
Discontiguous to erase the sampled color wherever it occurs in the layer.
Contiguous to erase areas that contain the sampled color and are connected to
Find Edges to erase connected areas containing the sampled color, while better
preserving the sharpness of object edges.
In the box titled Tolerance, enter a value for the degree of variation in color
that you want to erase. A low setting limits erasure to colors very similar
to the one first clicked on. A higher setting allows more shades of the selected
color to be erased. You can type a value into the box, or access its slider
by pressing on the arrow at the right side of the box and dragging.
For Sampling, choose one of the following:
• Continuous to sample colors continuously as you drag. Use this option to erase
adjacent areas that are different in color.
• Once to erase only areas containing the color that you first click. Use this
option to erase a solid-colored area.
• Background Swatch to erase only areas containing the current background color.
Select Protect Foreground Color to prevent the erasure of areas that match the
foreground color in the toolbox.
If you are using a pressure-sensitive tablet, set stylus options.
the other two erasers, this tool acts as by clicking, not dragging. It is similar
to the magicwand tool, except that it removes the pixels found, instead of selecting
them.The magic eraser erases to transparency on the active layer. If you apply
it to the background layer, the layer will automatically be changed into a regular
layer since the background layer does not permit transparency.
options palette: Double-click
the Magiceraser tool to display its Options palette.
The Tolerance setting determines how much variation in the selected color
will be erased. A low tolerance erases pixels within a range of color values
very similar to the pixel you click. A high tolerance erases pixels within a
The Opacity, When set to 100 % the erasure will be to complete transparency.
When set to a lower value, semitransparent color will be left according to the
Check Use All Layers if you want to sample a color to erase from all
Select Anti-aliased to smooth the edges of the area you erase.
If Contiguous is left unchecked, all pixels of the selected color within
the designated tolerance range will be erased. When checked, only pixels connected
to the spot clicked will be erased.
switch between the eraser, magic eraser, and background eraser tools, press