HDRösszevonás

HDRösszevonás is a term that refers to the process of merging High Dynamic Range (HDR) images. HDR imaging captures a wider range of luminosity than standard dynamic range (SDR) imaging, allowing for greater detail in both the brightest and darkest areas of a scene. When multiple HDR images are taken, especially with slight variations in exposure, HDRösszevonás is the technique used to combine them into a single, final HDR image.

This merging process typically involves aligning the individual images to account for any slight camera movements or shifts between exposures. Once aligned, the software analyzes the pixel data from each image and selects the best values for each point in the final image. For example, a bright detail from a more exposed image might be used, while a dark shadow detail from a less exposed image is incorporated. This results in an image with a more comprehensive tonal range than any single exposure could achieve on its own.

HDRösszevonás is commonly employed in digital photography, particularly in situations with high contrast lighting, such as landscapes at sunrise or sunset, or indoor scenes with bright windows. The goal is to create an image that more closely resembles how the human eye perceives a scene, capturing detail that would otherwise be lost in either blown-out highlights or crushed shadows. The effectiveness of HDRösszevonás depends on the quality of the source images and the sophistication of the merging algorithm used.