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1. A construction plan. It is called a blueprint because it historically has been printed on blue paper with white lines.

2. In photography, a copy of a periodical printed before final editing in which images are shown on blue paper.

3. Informal, a plan.
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A detailed set of plans used as a guide for construction.Because of the economies of a very inexpensive method of creating and copying such plans, they were formerly characterized by white lines on blue paper.

The Complete Real Estate Encyclopedia by Denise L. Evans, JD & O. William Evans, JD. Copyright © 2007 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Thus the critical re-edition is based on Maderna's autograph cyanotype copy, the only remaining source.
Presenting images selected from the museum's permanent collection by curator of photographs, Russell Lord, the exhibition included a range of processes, from daguerreotypes to cyanotypes, to photogravures, to gelatin silver, dye-transfer, and inkjet prints.
One may also use smaller quantities of the two components to prepare the cyanotype material, as long as the concentrations and relative volumes of each of the reactants are kept the same.
These intricate processes are a perfect match for Dugdale's photographs, which are dreamy visions of nudes and still lifes, all seen through a melancholy hazy blue, a product of the 19th-century cyanotype process.
Indeed, photography was conceived first of all in colour as early processes, and in particular that of the cyanotype, may demonstrate.
Blueprints on Fabric: Innovative Uses for Cyanotype. Barbara Hewitt.
Unable to draw without a model, he came to rely on photographs, which he took and developed himself using the cyanotype process, as a vital working tool.
Called a cyanotype print, this blueprint technique starts with two chemicals--ferric ammonium citrate and potassium ferricyanide--which you can order through a chemical supply company (for a source, see page 127).
Caption: Below: Ellen Gallagher and Edgar Cleijne, Highway Gothic (detail), 2017, still from the color 16-mm component of a mixed-media installation additionally comprising sewn cyanotype banners.
To convert the photo to a blue monochromatic image, choose Image > Adjustments > Hue/Saturation, then choose Cyanotype from the Preset dropdown menu.
By bathing cyanotype paper in the water, letting the waves rush over it, allowing it to mingle with the sand, the salt and the chemicals, she created her distinctive abstracts - photographs that are not so much of the sea but by, with and from it.
The 50 resin-based orbs, varying in diameter from 2 inches to 6 inches, will each hold a cyanotype of the galaxy, and be lighted from above with LED to cast the orbs' shadows on the ground.