tummuusasteikko
Tummuusasteikko, or grayscale, is a scale of brightness levels used to represent luminance in images orPrints without color. It describes how dark or light a pixel appears, ranging from black to white, and is commonly used when color information is unnecessary, insufficient, or undesired for analysis, reproduction, or interpretation.
In digital imaging, a tummuusasteikko is usually implemented as a one-channel gray image. The most common formats
Perception and display characteristics influence the design of tummuusasteikko. Because human vision is more sensitive to
Applications include image analysis, medical imaging, document scanning and OCR, printing, display calibration, and scientific visualization.
Conversion from color to grayscale commonly uses luminance-based weighting, such as combining the red, green, and