Microsoft Bitmap (BMP) Reader/Writer

FME Format Type Identifier

BMP

Reader/Writer

Both

Typical File Extensions

.bmp

The BMP format was created by Microsoft® and IBM® and is therefore very strictly bound to the architecture of the main hardware platform that both companies support: the IBM-compatible PC.

Windows stores bitmapped images in BMP format, which has four types: two under Windows (new and old), and two under OS/2.

BMP Product and System Requirements

Format

Product

Operating System

Reader/Writer

FME Desktop License

FME Server

FME Cloud

Windows

Linux

Mac

Reader

Available in all FME editions

Yes

Yes

64-bit: Yes

Yes

Yes

Writer

Available in all FME editions

Yes

Yes

64-bit: Yes

Yes

Yes

Reader Overview

FME considers a single BMP file to be a dataset. The BMP file contains pixel data, and each pixel in the file is a point in a single FME raster feature.

The reader supports reading almost any type of BMP file.

Writer Overview

The writer can write BMP files which are supported on any Windows system. Only single- or three-band files can be saved in BMP file. Input values will be resampled to 8 bit.

FME Raster Features

FME raster features represent raster data and use several concepts that are unlike those used in the handling of vector data. The topics below describe how FME processes raster data.

About FME Rasters Tiling and Mosaicking
Raster Properties Band Combining and Separating
Band Properties Band and Palette Selection
Palette Properties Raster Processing
Compression Raster versus Vector Features
Pyramiding Raster File Naming
Interleaving World Files
Interpretation and Data Type TAB Files
Palette Resolution  

BMP files can only be written with square pixel dimensions.

BMP supports rasters with a Red8, a Green8, and a Blue8 band. BMP also supports rasters with a single UInt8 band that has a RGB24 palette.