Edge tuner monitor2/18/2024 ![]() However, actual display hardware usually implements each pixel as a group of three adjacent, independent subpixels, each of which displays a different primary color. Normally, the software in a computer treats the computer’s display screen as a rectangular array of square, indivisible pixels, each of which has an intensity and color that are determined by the blending of three primary colors: red, green, and blue. Please discuss this issue and help introduce a summary style to the section by replacing the section with a link and a summary or by splitting the content into a new article. ![]() This section duplicates the scope of other articles, specifically subpixel rendering. Dick Brass, a Vice President at Microsoft from 1997 to 2004, complained that the company was slow in moving ClearType to market in the portable computing field. It was then analyzed by researchers in the company, and signal processing expert John Platt designed an improved version of the algorithm. ĬlearType was invented in the Microsoft e-Books team by Bert Keely and Greg Hitchcock. ![]() In theory, the method (called "RGB Decimation" internally) can enhance the anti-aliasing of any digital image. For example, ClearType enhancement renders text on the screen in Microsoft Word, but text placed in a bitmapped image in a program such as Adobe Photoshop is not. ClearType does not alter other graphic display elements (including text already in bitmaps). Only user and system applications render the application of ClearType. The compromise can improve text appearance when luminance detail is more important than chrominance. Like most other types of subpixel rendering, ClearType involves a compromise, sacrificing one aspect of image quality (color or chrominance detail) for another (light and dark or luminance detail). This increases edge contrast and readability of small fonts at the expense of font rendering fidelity and has been criticized by graphic designers for making different fonts look similar. ClearType also uses very heavy font hinting to force the font to fit into the pixel grid. ClearType uses spatial anti-aliasing at the subpixel level to reduce visible artifacts on such displays when text is rendered, making the text appear "smoother" and less jagged. With the increasing availability of HiDPI displays after 2012, subpixel rendering has become less necessary.Ĭomputer displays where the positions of individual pixels are permanently fixed – such as most modern flat panel displays – can show saw-tooth edges when displaying small, high-contrast graphic elements, such as text. The technology was first introduced in software in January 2000 as an always-on feature of Microsoft Reader, which was released to the public in August 2000.ĬlearType was significantly changed with the introduction of DirectWrite in Windows 7. ![]() This trade-off is asserted to work well on LCD flat panel monitors.ĬlearType was first announced at the November 1998 COMDEX exhibition. ClearType attempts to improve the appearance of text on certain types of computer display screens by sacrificing color fidelity for additional intensity variation. ClearType is Microsoft's implementation of subpixel rendering technology in rendering text in a font system.
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