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3.7 LAYER MASKS IN GIMP
Layer masks are a vital tool for modifying images. They enable us to manage transparency and other elements. GIMP’s
layer masks provide a sophisticated approach to modify particular areas of photos that are placed in layers within
a GIMP document. Parts of the layer become transparent when a layer mask is placed to an image over the layer,
allowing any layers beneath it to be seen through. This may turn out to be a striking method of fusing together multiple
photographs to create a final image that incorporates certain elements from each one.
The three different types of layer masks—full transparency, complete opacity, or partial transparency—are white,
black, or grey. As a result, the layer mask turns the image partially transparent, opaque, and transparent. This layering
effect doesn’t cause any harm.
White is used for absolute opacity, black is used for absolute transparency, and grey is used for partial opacity/
transparency. The various layer masks are used for different degree opacity and transparency.
Adding/Using a Layer Mask
Let us learn to add a mask to a layer.
We have opened two images in GIMP. First is a coloured photo. And second is the black and white.
266 Touchpad Web Applications-XI

