bitmap

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Related to Bitmap image: Bitmap image format

bitmap

Computing
a picture created on a visual display unit where each pixel corresponds to one or more bits in memory, the number of bits per pixel determining the number of available colours

bitmap

(graphics, file format)
A data file or structure which corresponds bit for bit with an image displayed on a screen, probably in the same format as it would be stored in the display's video memory or maybe as a device independent bitmap. A bitmap is characterised by the width and height of the image in pixels and the number of bits per pixel which determines the number of shades of grey or colours it can represent. A bitmap representing a coloured image (a "pixmap") will usually have pixels with between one and eight bits for each of the red, green, and blue components, though other colour encodings are also used. The green component sometimes has more bits that the other two to cater for the human eye's greater discrimination in this component.

See also vector graphics, image formats.

bitmap

A binary representation in which a bit or set of bits corresponds to some part of an object such as an image or font. For example, in monochrome systems, one bit represents one pixel on screen. For gray scale or color, several bits in the bitmap represent one pixel. The term may refer to the image itself or to the memory area that holds the bits that represent the image. See pixel and rasterize.

Graphics and Tables
A bitmap is usually associated with graphics, in which the bits are a direct representation of the pixels in the image. However, bitmaps can be used as tables to represent and keep track of anything, where each set of bits is assigned a value or condition. See bitmapped graphics. For graphics fundamentals, see graphics.


A Monochrome Bitmap
The left half of this diagram shows the bits in the bitmap, and the right half depicts what would show on screen. In monochrome systems, one bit is used to represent one pixel. Images that are scanned into the computer are turned into bitmaps, and bitmaps can be created in a paint program.
References in periodicals archive ?
- Import Bitmap Image as a Visio Shape: https://docs.aspose.com/display/diagramjava/Working+with+Shape+Icons+and+Pictures#WorkingwithShapeIconsandPictures-ImportBitmapImageasaVisioShape
Stated number of combinations is for a 100 x 100 pixels bitmap image, while, for larger bitmaps, this number exponentially increases since the greater number of bits can be used to hide the information.
In Section 2, we first simply describe the proposed FA-steganalyzer of heterogeneous bitmap images, and then detailedly demonstrate the improved image forensics techniques and forensics aided steganalysis techniques which are the key techniques involved in the proposed scheme.
(e) When bitmap images are used to identify controls, status indicators, or other programmatic elements, the meaning assigned to those images shall he consistent throughout an application's performance.
Is Bitmap Image similar to JPEG and suitable for sending by e-mail?
You start all your posts with the words "Howdy y'all," your screen saver is a bitmap image of your favorite truck, tractor or farm animal, and your computer is worth more than all your cars combined.
We set the maximum brightness for the bitmap image file as 2000 lux.
For this purpose an algorithm, which analyses bitmap image and traces pixel coordinates on the contour of the shape, is written.
In a few words, normal mapping is a method to give detail to a 3D mesh by capturing lighting information to a bitmap image. Using texture operations, we give to the model fake surface detail during lighting.
The ultimate resolution of a bitmap image is usually set by the screen or the printer; whereas, the resolution of a vector image is set by the software.
The Alchemy Forms Designer program runs in Microsoft Windows, accepts any bitmap image as a form, and has font, page layout, and printing defintion tools.