Specifications

This may be something like a waving flag or freeway in the background. With the Brush tool

selected, you can "paint" the mask, removing the offending sections of the image. With the

Rectangle tool selected, you can mask a rectangular area of any size by clicking at one corner

then dragging the mouse to the opposite corner. Hold down the Control key while drawing to

restore portions of the original image.

Conversely, if there is one area that should always cause a trigger regardless of overall

sensitivity, you may define this as a Hot Spot. When you draw with the Hot spot rectangle

tool, the area will be highlighted in red. Currently only one hot spot rectangle is supported.

Use the Clear button to fully restore the original image.

Use the Invert button change all masked areas into unmasked areas and vice-versa. This might

come in handy if you first want to specify the area of interest, then create a mask by inverting

your drawing.

Click Ok to save your changes.