descreening. Definition: Process in image processing of avoiding or removing moirÃ© effects in images due to scanning of photomechanically reproduced photographs or the capture of subjects with fine, regular pattern e.g. weave of jacket. * May take place during image capture or in post-processing. Why is it never straightforward?
In the above reaction between hydrogen and oxygen gases, oxygen is the oxidizing agent. Oxygen is a good oxidizer in reactions. Further, hydrogen peroxide, sulfuric acid, nitric acid, halogens, permanganate compounds, and Tollenâs reagent are some of the common oxidizing agents. Reducing Agent.
Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table and is a highly reactive nonmetallic element and oxidizing agent that readily forms compounds (notably oxides) with most elements. Photosynthesis releases oxygen, and respiration consumes oxygen.