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The number of pixels or picture elements contained in one linear inch in a digitally stored image. PS, PSE: Photoshop, Photoshop Elements. Commercial computer applications developed by Adobe for editing digital images. [20] RGB: RGB color space. An additive colour space that uses the primary colours of red, green and blue to create any colour.
The focus can usually be changed by clicking on a component that can receive focus with the mouse. Many desktops also allow the focus to be changed with the keyboard. By convention, the Tab ↹ key is used to move the focus to the next focusable component and ⇧ Shift+Tab ↹ to the previous one. When graphical interfaces were first introduced ...
In a nutshell, once a set of measurements of the system state over some period of time has been acquired, one then finds the derivatives of these measurements, which forms a local vector field. They can then determine a global vector field consistent with this local field. This is usually done by a least squares fit to the derivative data.
Selenium toning is a popular archival toning process, converting metallic silver to silver selenide. In a diluted toning solution, selenium toning gives a red-brown tone, while a strong solution gives a purple-brown tone. The change in color depends upon the chemical make-up of the photographic emulsion being toned.
up-one-lvl-kbd [4] – The "U" keyboard shortcut now navigates up one subpage level. hover-edit-section [5] – The "D" keyboard shortcut now edits the section you're hovering over. page-info-kbd-shortcut [6] – The "I" keyboard shortcut now opens the "Page information" link in your sidebar.
Acceptably sharp focus" is defined using a property called the "circle of confusion". The depth of field can be determined by focal length, distance to subject (object to be imaged), the acceptable circle of confusion size, and aperture. [2] Limitations of depth of field can sometimes be overcome with various techniques and equipment.
Focus The optical clarity or precision of an image relative to normal human vision. Focus in photographic images is usually expressed in terms of depth. Framing The placement of subjects and other visual content with respect to the boundaries of the image. Hand-held shot A shot where the camera is hand-carried, either with or without a ...
Deep focus is a photographic and cinematographic technique using a large depth of field. Depth of field is the front-to-back range of focus in an image, or how much of it appears sharp and clear. In deep focus, the foreground, middle ground, and background are all in focus. Deep focus is normally achieved by choosing a small aperture.