The eraser
allows you to make pixels in a layer transparent, thus erasing them from the
image. You also have the option of making them white instead. Using the right mouse button (or holding shift) makes the pixels slightly more transparent than
they were, as dictated by the level setting.
Using the left mouse button makes the pixels completely transparent.
This tool is pressure sensitive when using a graphics tablet; the pressure varies the width of the tool tip.
This option erases pixels by making them either transparent or white.
Partial
This option erases pixels by partially making them either transparent or white.
Background
This option erases background pixels without affecting foreground pixels. To do this, it samples the pixel at the center of its tip and uses it as a color key to make pixels similar to it that are within the tip transparent. When used near but outside an object, it has the effect of erasing the background around that object without affecting the said object. Unlike the Photoshop equivalent, the Background Eraser in Chasys Photo Editor is non-destructive – it changes transparency without modifying the underlying colors, so the pixels can be restored using the Opaquer Tool.
To clean and refine the edges, use the “Clean” option of the Edge Treatment Tool
The eraser
allows you to make pixels in a layer transparent, thus erasing them from the
image. You also have the option of making them white instead. Using the right mouse button (or holding shift) makes the pixels slightly more transparent than
they were, as dictated by the level setting.
Using the left mouse button makes the pixels completely transparent. 
Normal
Partial
Background
. 
