Image Export

Feature Description

Performs band combination, format conversion, coordinate system transformation, and other processing on input image files to achieve standardization of data formats.

Parameter description

Parameter Name parameter interpretation parameter type
image file list

Manages the image files to be exported.

  • Add Image: Specifies the images to export. Supports formats: *.tiff, *.tif, *.img, *.pix.
    • Add File: Select one or more image files from the local directory.
    • Add Folder: Select a folder from the local directory. It will automatically retrieve all images within that folder and its subfolders.
    • Add List: Select a manifest file (*.csv) from the local directory. Images will be retrieved based on the image names and path information in the manifest file.
    • Add Mosaic Data: Select a mosaic dataset from the current workspace.
  • Select All: Selects all files in the list.
  • Select Reverse: Inverts the selection status of all files in the list.
  • Delete: Removes the selected records from the list.
DatasetImage
export directory Sets the storage path for the result image. String
file type Sets the storage type for the result image. Provides four options: Not Set, Tiff/GeoTIFF, Erdas Image, and PCIDSK. The default is Tiff/GeoTIFF. Selecting Not Set means using the original storage type of the image for output. FileType
compression method Sets the compression method for the output image. Available only when the output format is Tiff/GeoTIFF. The default is NONE. CompressMethod
resolution type

Sets the resolution for image export. Provides two setting methods: original resolution and fixed value.

  • Original resolution: Outputs with the original resolution of the image.
  • Fixed value: Outputs the result image based on the specified resolution value.
OrthoRatioType
Resolution Required when the resolution type is set to fixed value. Outputs the result image based on the specified resolution value. Double
resampling method Sets the resampling method for image export. Provides three options: Nearest, Bilinear, Cubic. The default is Nearest. For more method introductions, please refer to Resampling Method. ResampleMethod
band Sets the band information included in the output image. Boolean
pixel format Sets the pixel bit depth for the output channels after processing. Available options include:
  • 8-bit Unsigned (default): Unsigned 8-bit integer.
  • 16bit Unsigned: Unsigned 16-bit integer.
  • 16-bit: Signed 16-bit integer.
  • 32-bit: Signed 32-bit integer. This option is not available when the file type is PCIDSK.
PixelFormat
Scale Pixel Values

Specifies whether to scale pixel values when the output pixel format differs from the input, to match the numerical range of the new bit depth.

  • Checked: Scales from the actual numerical range of the input image to the standard range defined by the output pixel format. For example, when converting 16-bit data (actual range 0-10000) to 8-bit (standard range 0-255), the value 0 maps to 0, the value 10000 maps to 255, and intermediate values are calculated proportionally.
  • Unchecked (default): Only performs bit depth format conversion without changing the original integer pixel values. If the original value exceeds the range defined by the output pixel format, it will be truncated. For example, values greater than 255 in 16-bit data will all be assigned the value 255 when converted to 8-bit, resulting in loss of information in highlighted areas.
Boolean
coordinate system transformation

Specifies whether the input images need to undergo coordinate system transformation before output.

  • Checked: Outputs after conversion based on the set coordinate system.
  • Unchecked: Outputs maintaining the original image coordinate system.
Boolean
conversion method

Required to be set after coordinate system transformation is specified.

Sets the method used for projection, generally categorized into three-parameter conversion methods and seven-parameter conversion methods. For more method introductions, please refer to Datum Conversion Method Description.

CoordSysTransMethod
target coordinate system

Required to be set after coordinate system transformation is specified.

Provides the following three setting methods. After the target projection is set, the name and details of the target coordinate system will be displayed.

  • Reset Coordinate System: Click the Reset Coordinate System button, select More from the dropdown menu to open the Projection Settings dialog. Choose the target coordinate system in the dialog. For more operational instructions, please refer to Projection Settings.
  • Copy Coordinate System: Click the Copy Coordinate System button, then in the pop-up dialog, choose to copy from a data source or from a dataset:
    • From Data Source: Click the combo box dropdown button to select a data source, and set its coordinate system as the target coordinate system.
    • From Dataset: Click the combo box dropdown button to select a dataset, and set its coordinate system as the target coordinate system.
  • Import Coordinate System: Click the Import Coordinate System... button. In the pop-up Select dialog, choose and import the projection info file. Supports importing Shapefile projection info files (*.shp;*.prj), MapInfo Exchange Format (*.mif), MapInfo TAB File (*.tab), image format projection info files (*.tif;*.img;*.sit), and projection info files (*.xml).
PrjCoordSys

Output Result

Image data processed through resampling, band combination, coordinate system transformation, etc.