Global tone mapping is a technique used in image processing to adjust the luminance of an entire image to fit within the displayable range of a monitor or print, ensuring that both dark and bright areas are visible. It is crucial for transforming high dynamic range (HDR) images into low dynamic range (LDR) formats while preserving the overall appearance and detail of the original scene.

Global Tone Mapping

Global tone mapping

Image processing involves the manipulation and analysis of digital images to enhance their quality or extract valuable information. It is a crucial technology in fields like computer vision, medical imaging, and remote sensing, enabling advanced applications such as facial recognition, object detection, and image restoration.

image processing

Luminance adjustment

displayable range

Dark areas

bright areas

High Dynamic Range (HDR) refers to a technology used in imaging and photography to reproduce a greater range of luminosity than what is possible with standard digital imaging techniques. By capturing and combining multiple exposures, HDR creates images with enhanced detail in both the darkest and brightest areas, resulting in more life-like and visually appealing pictures.

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