Import Image Bitmap File

Feature Description

This feature allows direct import of various mainstream image bitmap file formats such as IMG, TIF, BMP, JPG, GIF, SIT (obsolete), etc. It enhances flexibility and convenience when handling remote sensing imagery, aerial photos, satellite images, and various other types of image data.

Feature Entry

  • Start Tab -> Data Processing -> Data Import -> Raster Image Group -> Image Bitmap.
  • Workspace Manager -> Datasource Context Menu -> Import Dataset....
  • Toolbox -> Data Import -> Tools in Image Bitmap File.

Steps

The following example demonstrates importing IMG and TIF files as image bitmap files:

  1. In the Data Import dialog box, configure parameters under Result Settings including Target Datasource, Result Dataset, Encode Type, Import Mode, and Source File Info. For details, refer to the Common Parameters for Data Import documentation.
  2. Result:
    • Dataset Type: Specifies the type of imported data. For raster data import, two options are available: Image and Raster. Selecting Image imports the file as an image dataset; selecting Raster imports it as a GRID dataset.
  3. Transformation Parameters:
    • Band Import Mode: Specifies the band import method for multi-band image data (e.g., Erdas Image File(*.img) and TIFF File(*.tif)). The system provides Multi-band and Single Bands options.
      • Multi-band: Imports multi-band data as a single multi-band dataset. Band table information can be viewed in the dataset's property window under Image Properties.
      • Single Bands: Imports multi-band data as individual single-band datasets.
    • Create Image Pyramid: When checked, generates image pyramids for imported data.
    • Coordinate Reference File: Allows importing *.tfw coordinate reference files when importing image files (effective for TIF files only). For details, see Image Georeference Files.
  4. After configuring parameters, click the Import button to import specified data as image datasets.
Notes:
  • For single-band raster data imports, the None and Append modes behave identically. If naming conflicts occur with existing datasets, imported data will be automatically renamed.
  • When importing *.img, *.tif or *.tiff formats, the resulting dataset's projected coordinate system matches the source file. For *.bmp, *.png, *.jpg or *.gif formats, it adopts the datasource's projected coordinate system.
  • IMG format does not support SphereMercator projection type. Data with this projection exported as IMG will lose projection information. Reassign projection when reusing such data.

Related Topics

Import IMG

Import TIF

Import PNG

Import JPG