Editing Photography (section)

=== Black-and-white ===
{{Main|Monochrome photography}}
{{Also see|Black-and-White}}
{{Also see|Black and White Photography}}
[[File:Dark room.jpg|thumb|A photographic [[darkroom]] with [[safelight]]]]
Originally, all photography was [[monochrome photography|monochrome]], or ''[[black-and-white]]''. Even after color film was readily available, black-and-white photography continued to dominate for decades, due to its lower cost, chemical stability, and its "classic" photographic look. The tones and contrast between light and dark areas define black-and-white photography.<ref>{{cite journal
| title   = Black & White Photography
| journal = PSA Journal
| volume  = 77
| issue   = 12
| year    = 2011
| pages   = 38–40
}}</ref> Monochromatic pictures are not necessarily composed of pure blacks, whites, and intermediate shades of gray but can involve shades of one particular [[hue]] depending on the process. The [[cyanotype]] process, for example, produces an image composed of blue tones. The [[albumen print]] process, publicly revealed in 1847, produces brownish tones.

Many [[photographers]] continue to produce some monochrome images, sometimes because of the established archival permanence of well-processed silver-halide-based materials. Some full-color digital images are processed using a variety of techniques to create black-and-white results, and some manufacturers produce digital cameras that exclusively shoot monochrome. Monochrome printing or electronic display can be used to salvage certain photographs taken in color which are unsatisfactory in their original form; sometimes when presented as black-and-white or single-color-toned images they are found to be more effective. Although color photography has long predominated, monochrome images are still produced, mostly for artistic reasons. Almost all [[digital cameras]] have an option to shoot in monochrome, and almost all image editing software can combine or selectively discard [[RGB color model|RGB]] color channels to produce a monochrome image from one shot in color.