Search results
Results from the WOW.Com Content Network
The Photoshop and illusions.hu flavors also produce the same result when the top layer is pure white (the differences between these two are in how one interpolates between these 3 results). These three results coincide with gamma correction of the bottom layer with γ=2 (for top black), unchanged bottom layer (or, what is the same, γ=1; for ...
Shadowgraph is an optical method that reveals non-uniformities in transparent media like air, water, or glass. It is related to, but simpler than, the schlieren and schlieren photography methods that perform a similar function. Shadowgraph is a type of flow visualisation.
If a knife edge is not used, the system is generally referred to as a shadowgraph system, which measures the second derivative of density. In the two-mirror schlieren system (sometimes called the Z-configuration), the source is collimated by the first mirror, the collimated light traverses the object and then is focused by the second mirror ...
Shadowgraph or shadowgram, an optical method that reveals non-uniformities in transparent media Optical comparator , a device that creates silhouettes of manufactured parts for inspection Shadowgraph, an electromagnetic and optical device once used as an alternative to magic eye tube
Monochrome photography is photography where each position on an image can record and show a different amount of light (), but not a different color ().The majority of monochrome photographs produced today are black-and-white, either from a gelatin silver process, or as digital photography.
The usual result is a negative shadow image that shows variations in tone that depends upon the transparency of the objects used. Areas of the paper that have received no light appear white; those exposed for a shorter time or through transparent or semi-transparent objects appear grey, [1] while fully-exposed areas are black in the final print.
For purposes of discussion we shall assume the two primary patterns are each printed in greyscale ink on a white sheet, where the opacity (e.g., shade of grey) of the "printed" part is given by a value between 0 (white) and 1 (black) inclusive, with 1 / 2 representing neutral grey. Any value less than 0 or greater than 1 using this grey ...
Shadowgraphy or ombromanie is the art of performing a story or show using images made by hand shadows.It can be called "cinema in silhouette". Performers are titled as a shadowgraphist or shadowgrapher.