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2. Hand-colouring of photographs - Wikipedia

   en.wikipedia.org/wiki/Hand-colouring_of_photographs

   Hand-colouring with watercolours requires the use of a medium to prevent the colours from drying with a dull and lifeless finish. Before the paint can be applied, the surface of the print must be primed so that the colours are not repelled. This often includes prepping the print with a thin coating of shellac, then adding grit before colouring ...

3. Art photography print types - Wikipedia

   en.wikipedia.org/wiki/Art_photography_print_types

   Art photography print types refers to the process and paper of how the photograph is printed and developed. C-Print / Chromogenic Print: A C-Print is the traditional way of printing using negatives or slides, an enlarger, and photographic paper—through a process of exposure and emulsive chemical layers. Chromogenic color prints are composed ...

4. Gum printing - Wikipedia

   en.wikipedia.org/wiki/Gum_printing

   Gum prints tend to be multi-layered images sometimes combined with other alternative process printing methods such as cyanotype and platinotype. A heavy weight cotton watercolor or printmaking paper that can withstand repeated and extended soakings is best. Each layer of pigment is individually coated, registered, exposed and washed.

5. Photographic printing - Wikipedia

   en.wikipedia.org/wiki/Photographic_printing

   Photographic printing is the process of producing a final image on paper for viewing, using chemically sensitized paper. The paper is exposed to a photographic negative , a positive transparency (or slide ) , or a digital image file projected using an enlarger or digital exposure unit such as a LightJet or Minilab printer.

6. Photographic print toning - Wikipedia

   en.wikipedia.org/wiki/Photographic_print_toning

   The compound may be more stable than metallic silver and may also have a different color or tone. Different toning processes give different colors to the final print. In some cases, the printer may choose to tone some parts of a print more than others. [1] Toner also can increase the range of shades visible in a print without reducing the contrast.

7. Dye-transfer process - Wikipedia

   en.wikipedia.org/wiki/Dye-transfer_process

   The use of dye imbibition for making full-color prints from a set of black-and-white photographs taken through different color filters was first proposed and patented by Charles Cros in 1880. [1] It was commercialized by Edward Sanger-Shepherd, who in 1900 was marketing kits for making color prints on paper and slides for projection. [1]