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Hatching (French: hachure) is an artistic technique used to create tonal or shading effects by drawing (or painting or scribing) closely spaced parallel lines.When lines are placed at an angle to one another, it is called cross-hatching.
When enabled, areas of the image over a certain threshold are filled with a striped or cross-hatch pattern to dramatically highlight areas where too much light is falling on the image sensor. [1] [2] Often, a threshold level can be set, e.g. 70%, 80%, 90%, or 100% (with 100% meaning pure white, or over-exposed, AKA 100 IRE). [3]
The "abstract drawing" (ochre cross-hatching) discovered in Blombos Cave in South Africa, ca. 73,000 years old. [5]In 2002 in Blombos cave, situated in South Africa, ochre stones were discovered engraved with grid or cross-hatch patterns, dated to some 70,000 years ago.
An example of cross-hatching in the solving of a Sudoku puzzle. Date: 12 September 2006: Source: Original puzzle layout by Lawrence Leonard Gilbert, generated by the GNU program Su Doku Solver. Cross hatch design by Adam R. Wood. Both images released into public domain by their respective authors. SVG version created in Inkscape. Author: Tim ...
This page was last edited on 3 June 2005, at 00:31 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
A photo of a gilded cross gleaming through the haze of a fire that ravaged Notre Dame Cathedral in Paris on Monday has proven to be a symbol of hope. Powerful image shows cross shining through ...
A "cross-hatch" pattern is used to retain oil or grease to ensure proper lubrication and ring seal of pistons in cylinders. A smooth glazed cylinder wall can cause piston ring and cylinder scuffing. The "cross-hatch" pattern is used on brake rotors and flywheels. [citation needed]
Test cards typically contain a set of patterns to enable television cameras and receivers to be adjusted to show the picture correctly (see SMPTE color bars).Most modern test cards include a set of calibrated color bars which will produce a characteristic pattern of "dot landings" on a vectorscope, allowing chroma and tint to be precisely adjusted between generations of videotape or network feeds.