Search results
Results From The WOW.Com Content Network
Reversal film. A single slide, showing a color transparency in a plastic frame. Slide projector, showing the lens and a typical double slide carrier. In photography, reversal film or slide film is a type of photographic film that produces a positive image on a transparent base. [1] Instead of negatives and prints, reversal film is processed to ...
Transparency and translucency. Dichroic filters are created using optically transparent materials. In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale (one in which the dimensions are ...
Kodachrome is the brand name for a color reversal film introduced by Eastman Kodak in 1935. [2] It was one of the first successful color materials and was used for both cinematography and still photography. For many years, Kodachrome was widely used for professional color photography, especially for images intended for publication in print media.
Alpha compositing. This color spectrum image's alpha channel falls off to zero at its base, where it is blended with the background color. In computer graphics, alpha compositing or alpha blending is the process of combining one image with a background to create the appearance of partial or full transparency. [1]
Transparency (graphic) GIF animation of an Apollonian sphere packing with transparent background. Transparency in computer graphics is possible in a number of file formats. The term "transparency" is used in various ways by different people, but at its simplest there is "full transparency" i.e. something that is completely invisible.
RGBA stands for red green blue alpha. While it is sometimes described as a color space, it is actually a three-channel RGB color model supplemented with a fourth alpha channel. Alpha indicates how opaque each pixel is and allows an image to be combined over others using alpha compositing, with transparent areas and anti-aliasing of the edges of ...
PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without an alpha channel for transparency), and full-color non-palette-based RGB or RGBA images. The PNG working group designed the format for transferring images on the Internet, not for professional-quality print graphics; therefore, non-RGB color spaces such as CMYK are not ...
Color infrared transparency films are based on an emulsion which, similar to standard color film, contains at least three separate photosensitive layers. Each layer is specifically sensitized to produce a desired color. Grains of light-exposed silver halide in these layers react with a reducing agent to form metallic silver particles.