device independent bitmap - définition. Qu'est-ce que device independent bitmap
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Qu'est-ce (qui) est device independent bitmap - définition

WINDOWS BITMAP IMAGE FILE FORMAT FAMILY
.bmp; Windows Bitmap; Device-independent bitmap; .DIB; BMP file; .BMP; Windows bitmap; Windows and OS/2 bitmap; BMP format; .dib; BMP (file format); Bitmap file format; Bitmap image file format; Device Independent Bitmap; BMP File Format; Windows bmp; BMP image; Image/bmp
  • Example 1]] of a 2×2 pixel bitmap, with 24 bits/pixel encoding

device independent bitmap         
<graphics, file format> (DIB) An image format in which the sequence and depth of pixels in the file is not specifically related to their layout in any particular device. This allows any device dependent bitmap (DDB) image to be converted to or DIB format without loss of information, and this can then later be converted to other DDB formats for, e.g., printing or display. Rather than requiring converters from each DDB format to all other formats, only converters to and from DIB are needed. DIB images are normally transferred in metafiles, bmp files, and the clipboard. Transferring colour bitmaps from one device to another was not possible in versions of Microsoft Windows earlier than 3.0. Application programs can build DIB images without any interaction with Windows. If Windows lacks a drawing primitive, the application can simulate it directly into the DIB instead of using the existing graphics device interface (GDI) primitives. Unfortunately, under Windows versions 3.0 and 3.1, GDI cannot perform output operations directly to a DIB. Conversion between DIB and DDB is performed by the {device driver}. Where the driver does not have this facility, the conversion is performed by GDI but only in monochrome. DIBs are slower to use than device dependent bitmaps due to the conversions required. (1996-09-20)
xbm         
IMAGE FILE FORMAT
X BitMap Format; X Bitmap; XBM; .xbm
<filename extension> X bit map. The filename extension for files containing bitmaps for use in the X Window System. These are actually include files which can be #include'd into C program source to define images as initialised data. (1995-03-14)
X BitMap         
IMAGE FILE FORMAT
X BitMap Format; X Bitmap; XBM; .xbm
In computer graphics, the X Window System used X BitMap (XBM), a plain text binary image format, for storing cursor and icon bitmaps used in the X GUI. The XBM format is superseded by XPM, which first appeared for X11 in 1989.

Wikipédia

BMP file format

The BMP file format or bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device (such as a graphics adapter), especially on Microsoft Windows and OS/2 operating systems.

The BMP file format is capable of storing two-dimensional digital images in various color depths, and optionally with data compression, alpha channels, and color profiles. The Windows Metafile (WMF) specification covers the BMP file format.