sensorbild

Sensorbild refers to the raw, unprocessed output from a digital image sensor, such as those found in cameras, scanners, and other imaging devices. Unlike a finished photograph or a processed image file, a sensorbild contains the direct electrical signals captured by the sensor's individual pixels. These signals typically represent luminance or a combination of luminance and color information.

The conversion of light into these electrical signals is the fundamental process of digital imaging. Each pixel on the sensor accumulates photons, and the amount of light it receives is converted into a voltage or charge. This raw data is then typically digitized into a series of numbers, forming the sensorbild.

Sensorbilds are not directly viewable by humans in their native format. They require further processing to become recognizable images. This processing, often referred to as demosaicing or debayering, involves interpolating color information for pixels that only capture one color (red, green, or blue) and correcting for various sensor imperfections. Additionally, adjustments for white balance, exposure, and noise reduction are applied.

The quality of the sensorbild is crucial for the final image quality. Factors such as sensor size, pixel count, noise levels, and dynamic range all influence the information captured in the sensorbild and, consequently, the potential for a high-quality final image. Understanding the sensorbild is important in fields like computational photography and image processing, where direct manipulation of raw sensor data can yield superior results.