Feature Description
Image fusion is a technique that composites and transforms multiple images from different times, sensor systems, resolutions, and spectral bands using various methods to generate new imagery. For example, fusing a panchromatic orthophoto with a multispectral orthophoto can yield high-quality imagery that combines high spatial resolution with high spectral resolution. This technology effectively integrates the advantages of various types of images, providing richer information support for subsequent analysis and applications.
SuperMap iDesktopX supports this feature starting from version 11i(2023).
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| Figure: Multispectral Image Before Fusion | Figure: Panchromatic Image Before Fusion | Figure: Multispectral Image After Fusion |
Function Entrance
Satellite Image Processing Tab->DOM Data Production Group->Image Fusion.
Parameter Description
| Parameter Name | Parameter Interpretation | Parameter Type |
| Data Type |
This parameter is only available when the function is launched from the Satellite Image Processing Tab->DOM Data Production Group->Image Fusion. Selects the source of input image data, providing two options: Image Files and Mosaic Dataset. The default is Image Files. Use Add, Select All, Select Reverse, Delete, and Settings functions under Image File List to manage image files.
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| Panchromatic Data Source |
This parameter is only available when the function is launched from the Satellite Image Processing Tab->DOM Data Production Group->Image Fusion. After selecting Mosaic Dataset in Data Type, specifies the data source where the panchromatic image data resides. |
DataSource |
| Panchromatic Data | After selecting Mosaic Dataset in Data Type, specifies the mosaic dataset where the panchromatic image data resides. For workflow production, it is display-only and cannot be edited. | DatasetMosaic |
| Multispectral Data Source |
This parameter is only available when the function is launched from the Satellite Image Processing Tab->DOM Data Production Group->Image Fusion. After selecting Mosaic Dataset in Data Type, specifies the data source where the multispectral image data resides. |
DataSource |
| Multispectral Data | After selecting Mosaic Dataset in Data Type, specifies the mosaic dataset where the multispectral image data resides. For workflow production, it is display-only and cannot be edited. | DatasetMosaic |
| Fusion Method |
Specifies the image fusion method. The default method is Gram-Schmidt.
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FusionMethod |
| Predefined Fusion Weights | Check this box to use predefined weights for fusion, but it is only effective for the PanSharp and Gram-Schmidt methods. If unchecked, adaptive weights are used for fusion. | Boolean |
| Sharpening Factor | Used to adjust the clarity of the fused image. The default is 1. | Double |
| Resampling Method | Sets the resampling method after image fusion. Provides three options: Nearest, Bilinear, and Cubic. The default is Bilinear. For more information on methods, please refer to Resampling Method. | ResampleMethod |
| Export Directory |
Sets the storage path for the result image. If executing a production workflow, uses the Set the Image Path or Add Orthophoto Processing parameter, and this field is not editable. |
File |
| Output Format |
Sets the storage type for the result image. Provides four options: Undefined, Tiff/GeoTIFF, Erdas Image, and PCIDSK. The default is Tiff/GeoTIFF. Selecting Undefined means outputting using the image's original storage type. If executing a production workflow, uses the Output Format parameter from Set the Image Path or Add Orthophoto, and this field is not editable. |
FileType |
| Compression Method |
Sets the compression method for the output image. Only available when the output format is Tiff/GeoTIFF. The default is NONE. If executing a production workflow, uses the Compression Method parameter from Set the Image Path or Add Orthophoto, and this field is not editable. |
CompressMethod |
| Add Results to Map Window |
This parameter is only available when the function is launched from the Satellite Image Processing Tab->DOM Data Production Group->Image Fusion. Checked by default, meaning the result data will be added to the map window for display upon successful function execution. |
Boolean |
| Create an Image Pyramid |
Checked by default. Builds pyramids for the image data according to the specified resampling method to improve image zoom display rendering and performance. If executing a production workflow, uses the Create an Image Pyramid parameter from Set the Image Path or Add Orthophoto, and this parameter is not displayed. |
Boolean |
| Resampling Method |
Available after checking Create an Image Pyramid. The default is Average. For more information on methods, please refer to Resampling Method. If executing a production workflow, uses the Resampling Method parameter from Set the Image Path or Add Orthophoto, and this parameter is not displayed. |
PyramidResampleType |
| Asynchronously Create Statistics |
During image browsing, the layer will be stretched based on statistical information. If the image lacks statistical information, it will be displayed using the default stretch method, and 8-bit data will not be stretched for display. Checked by default, meaning statistics will be created for the image in the background without affecting workflow execution. If unchecked, statistics are created while executing this tool, which may consume time. If executing a production workflow, uses the Asynchronously Create Statistics parameter from Set the Image Path or Add Orthophoto, and this parameter is not displayed. |
Boolean |
Output Result
- Outputs image data combining features of panchromatic and multispectral images to the local folder.
- Automatically creates an image fusion mosaic dataset in the OrthoData data source based on the output image data.
Related Topics
Multispectral and Panchromatic Registration


