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The Curtain. Filigreed coral  worms with their delicate white tube and their red feathery feeding branches
By Peet J Van Eeden
posted 06:19 CST Today (1 hour ago)
Nudibranch Phyllodesmium koehleri
By Oksana Maksymova
posted 03:06 CST Today (4 hours ago)
Azoren rock formation
By Pieter Firlefyn
posted Saturday, January 16, 2021
The Gate keepers. Sandy anemones occur also in gullies and collect passing food with their sticky tentactles. Sand also sticks to its tentacles therefore the name sandy anemones
By Peet J Van Eeden
posted (2 days ago)
Spiral of Life. The fan of the Red fan worm demonstrated the Fibonacci sequence.
By Peet J Van Eeden
posted (3 days ago)
Lionfish on the house reef at Marsa Shagra.
By Shannon Moran
posted (3 days ago)

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36 Entries Found

push processa development technique that increases the speed of the film being processed
PSDPhotoShop (PSD) is the format produced by the Adobe PhotoShop graphics editor. Note that the PSD specification changes with every whole number version release of PhotoShop, but is backwards compatible; so you must have the latest version to be sure of being able to open any PSD file.
Program(P) Program mode. Exposure mode that allows the camera determines the optimum shutter speed/aperture combination for you.
Prime lensA lens attached directly to the camera body
Primary ColorsRed, Green, and Blue
Pre-pressStage where digital information is translated into output suitable for the printing process
pre-flashMany digicams employ a slightly different system for TTL exposure. First they fire a pre-flash, which is measured, and they calculate exposure based on that. This happens so quickly that the eye notices only one flash.
PPIPoints per inch. Same thing as DPI
PostScriptA page description language for medium to high resolution print devices. The language consists of software commands and protocols that allow you to send data (including picture and font information) from your computer to the printer for output.
post-productiona euphemism for editing in a photo manipulation program. An excuse for sloppy work e.g. 'we'll fix it in post!'
PostproductionVideo or audio editing
PosterizeCreates a poster effect on the bitmap by quantizing the bitmaps colors to a specified number of color levels per plane. i.e. the image is made out of discrete blobs of color with obvious boundaries between them.
Portrait LensA lens of longer focal length than standard. Typically 100mm + (on the 35mm system).
PortOptical quality window in an underwater housing (by analogy with a ship's 'port hole').
PlasterMolds an image from 3D plaster, and then colorizes the result using the foreground and background color. Dark areas are raised, light areas are sunken (or reverse the effect by choosing the Invert option).
Pixel DepthThe amount of computer data required to store the color information for each pixel.
PixelPicture element: a dot or a small area of a picture that carries the three attributes: hue, color saturation, and brightness. Any picture can be made up of an array of dots with these attributes, viewed from a distance that the dots are not visible.
Pincushion DistortionPincushion Distortion is a problem associated with telephoto lenses whereby the image appears distorted inwards.
PhotoshopThe brand leader in digtal image manipulation program produced by Adobe Software. You Hoover the floor, Google the Net, and Photoshop your images! When we use Photoshop we mean any such program.
PhotomergeAdobe’s own panoramic stitching utility
PhotocopySimulates the effect of photocopying an image. Large areas of darkness tend to copy only around their edges, and midtones fall away to either solid black or white.
PerspectiveAttribute of lens focal length that determines the apparent relationship between foreground and background i.e. compresses or exaggerates it
PDFPortable Document Format is a flexible, cross-platform, cross-application file format. Based on the PostScript imaging model, PDF files accurately display and preserve fonts, page layouts, and both vector and bitmap graphics. In addition, PDF files can contain electronic document search and navigation features such as electronic links.
PCMPulsecode modulation. Digital audio recording mode used by tape recorders.
PCDPCD images are stored in Kodak’s Image Pac format, which provides five versions of each image at different resolutions.
PCBPrinted circuit board.
PCPhoto Coax. A small circular connector used in conjunction with manual flash equipment.
PathThe outline of a vector shape
ParallaxThe apparent difference in position of an object when seen from two different viewpoints.
PantoneUsed for printing solid-color and CMYK inks. The Pantone Matching System includes 1,114 solid colors. To select a color, use a PANTONE Color guide, printed on coated, uncoated, and matte stocks.
Pan (Panning) The movement of a film or video camera (rotating on a vertical axis)
PalmCorderA Camcorder which can sit on the palm of the hand.
PaletteA special dialog with a specialised editing purpose. By default palettes appear screen right. They can be stacked with others palettes and docked. Choose the palette name in the Window menu to open it. To show or hide all palettes, press shortcut Shift + Tab.
PALPhase Alternating Line. The color television system used in Europe, Australia, and New Zealand.
paint bucket toolfills adjacent pixels that are similar in color value to the pixels you click.
PackBits(ImageReady) lossless compression that uses a run-length compression scheme; supported by the TIFF file format in ImageReady only.
36 Entries Found