färgstick

Färgstick, also known as color cast or color shift, refers to an unwanted alteration in the color balance of an image or display. This phenomenon causes a particular hue to dominate the overall tone, making whites appear tinted with that color and distorting the accurate representation of other colors.

Several factors can cause färgstick. In photography, it can arise from the type of light source illuminating the subject, such as incandescent bulbs emitting a warm, yellowish light or fluorescent lights producing a greenish tint. Camera settings, like incorrect white balance, can also contribute. In digital displays, aging components, calibration issues, or manufacturing defects can lead to a färgstick.

The consequences of färgstick include inaccurate color reproduction, which is particularly problematic for applications where precise color is crucial, such as graphic design, medical imaging, or scientific analysis. In everyday viewing, it can make photos look unnatural or cause discomfort.

Addressing färgstick typically involves corrective measures. In photography, this can be done during post-processing by adjusting the white balance or using color correction tools. For digital displays, recalibration using specialized equipment or software can often resolve the issue. In some cases, if the färgstick is due to hardware degradation, the display may need to be repaired or replaced.