A layer that lets you apply color and tonal changes to your image without permanently changing pixel values. Use ______ layers to experiment with color and color tones.

The workspace around an existing image, within the image window. Layer data may lie outside of the _____, but it will be clipped to the _____ when the image is flattened.

______ is the extent to which something blocks light. You can change the ______ of layers, filters, and effects so that more (or less) of the underlying image shows through.

A __________ is a part of an image selected for manipulation of any kind—duplication in a layer, color correction, deletion, rotation, and so on. The ______ consists of all the pixels—fully or partially selected—contained within the selection boundary.

To scale, shrink, enlarge, skew, distort, rotate, or change the perspective of a layer, selection, or shape.

To trim a portion of an image to improve its composition.

The amount of detail in an image. Digital images are measured by the number of pixels per inch (ppi). For printing, _______ is measured by the number of dots printed in a linear inch (dpi). The higher the ______, the larger the file size.

A ___________ is any of several methods for achieving a smooth transition between two adjacent colors, including black and white.

A measure of the amount of light in which a photo was taken. Not enough light and photos are too dark; too much light and photos are, too light.

Automated ways to alter the look of an image—for instance, to make it look like a mosaic, add unique lighting, apply distortions, and so on.

______ makes colors more vivid (less black or white added).

_________ is a reduction of an image's brightness or saturation at its edges compared to its center. The result is an image that is clear in the center, and fades out at the edges.