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13 Layer
13.1 About Layer
ToupView Layer is like sheets of stacked acetate. You can see through transparent
areas of a Layer to the Layers below. You add a Layer to position the image content
on the Layer, like sliding a sheet of acetate in a stack. You can also hide/show a layer
to make content visible.
You use layers to perform tasks such as perform the measurement on the image with
polluting the image and save it for the future adjustment for the further analysis,
adding text to an image, or adding vector graphic shapes.
13.2 Organizing layers
A new image has a single Layer called Background layer. The number of additional
layers you can add to an image is limited only by your computer’s memory.
You work with layers in the Layers sidebar. Layer sidebar help you organize and
manage layers just like the Layer menu.
13.3 Layers for non-destructive measurement and label
Rather than edit image pixels directly, you can label the image with text and measure
the image and leave the underlying pixels unchanged. Because of the
non-destructively to images, you can later tweak or remove the label and
measurement.
13.4 Layer sidebar