värviheitmete

Värviheitmete, often translated as color casting or color bias, refers to an unwanted tint or hue that affects an image or video. This phenomenon can be caused by various factors, including the lighting conditions under which the image was captured, the limitations of the camera's sensor or film, or the display device used for viewing. For example, a photograph taken under incandescent lighting, which emits a warm, yellowish light, might exhibit a noticeable yellow cast. Conversely, fluorescent lighting can sometimes introduce a greenish tint.

The color cast can distort the true colors of a scene, making them appear unnatural. In photography and videography, correcting color casts is a crucial part of post-processing. This is often achieved through techniques like white balancing, where the software or photographer adjusts the color temperature and tint to neutralize any unwanted hues and restore accurate colors. Different cameras and software packages offer various tools and presets to help identify and correct these color biases, aiming to present the most faithful representation of the original scene. The goal is to achieve a neutral gray or white reference point, from which all other colors can be correctly rendered.