Revision as of 21:22, 31 July 2024 edit UrgentHelp (talk \| contribs) 15 edits m Add links Tags: Visual edit Mobile edit Mobile web edit Newcomer task Newcomer task: references ← Previous edit		Revision as of 21:25, 31 July 2024 edit undo UrgentHelp (talk \| contribs) 15 edits m Add link, remove u from coloured for consistency Tags: Visual edit Mobile edit Mobile web edit Newcomer task Newcomer task: references Next edit →
Line 16: === Noise reduction === [[Image noise\|Noise]] is a phenomenon found in any [[Electronic circuit\|electronic circuitry]]. In [[digital photography]] its effect is often visible as random spots of obviously wrong color in an otherwise smoothly-~~coloured~~colored area. Noise increases with temperature and [[Exposure (photography)\|exposure]] times. When higher [[ISO 5800:1987#Digital camera ISO speed and exposure index\|ISO]] settings are chosen the electronic signal in the image sensor is amplified, which at the same time increases the noise level, leading to a lower [[signal-to-noise ratio]]. The image processor attempts to separate the noise from the image information and to remove it. This can be quite a challenge, as the image may contain areas with fine textures which, if treated as noise, may lose some of their definition. === Image sharpening ===

Image processor: Difference between revisions