.Use any image as a mask for another image. Paint Shop Pro converts the image into greyscale raster data and uses it for the mask. The original, or source, image is not altered.
Note: Another way to create a mask from an image is to load the image file from disk; see Loading Masks from Disk.
To create a mask from an image:
Open the image that you want to use for the mask.
Select the image in which you want to create the mask layer.
On the Layer palette, click the layer you want to mask.
Choose Layers > New Mask Layer > From Image to open the Add Mask From Image dialog.
In the Source window drop-down list, select the image to use for the mask.
In the Create mask from group box, select an option:
Source luminance The luminance value of the pixel color determines the degree of masking. Lighter colors produce less masking; darker colors produce more masking. Transparent areas completely mask the layer.
Any non-zero value Transparent areas completely mask the layer. There is no gradation to the masking. Pixels with data (opacity of 1-255) become white pixels in the mask; transparent pixels become black in the mask.
Source opacity The opacity of the image determines the degree of masking. Fully opaque pixels produce no masking; partially transparent pixels create more masking; transparent pixels produce full masking.
To reverse the transparency of the mask data, mark the Invert mask data check box. Black pixels become white, white pixels become black, and greys are assigned their mirror value.
Click OK.
The mask layer and the selected layer are added to a new layer group. The mask layer applies to the selected layer only. To apply it to all underlying layers, drag it from the layer group to the main level.
For information on editing the mask, see Editing Masks.
To view the mask on the image, on the Layer palette click the Mask Overlay toggle .
Creating Masks from Selections