Kuvatasoja

Kuvatasoja, or image layers, are the building blocks of layered raster images in digital image editing software. Each kuvataso contains pixel data and transparency information that can be edited independently of other layers. When an image is viewed, the software composes visible layers in their stacking order, applying selected attributes to determine color, brightness, and transparency in the final result.

Key features include the ability to toggle visibility, adjust opacity, and choose blending modes that determine how a layer interacts with those below it. Layers can have masks to selectively reveal or hide content, and adjustment layers or fill layers can affect all underlying layers without altering the layer contents themselves. Smart objects enable non-destructive editing by preserving source image data.

Common types of kuvatasoja include background layers, normal layers, adjustment layers, fill layers, type layers and smart objects. Layers can be grouped for organization. Typical operations are creating, duplicating, renaming, moving, masking, clipping, grouping, and merging or flattening when a final raster is needed.

Using kuvatasoja supports non-destructive editing, flexible composition, and iterative design. They are essential in photo retouching, digital illustration, graphic design, and UI mockups.

File formats vary: many editors save layering information in PSD or PSB files; TIFF can preserve layers in some implementations. Some formats (PNG, JPEG) store flattened images without layers, so layer data is lost on export.

See also: layer mask, blending mode, opacity, layer group, image editing, Photoshop, digital imaging.