Set Image Path (DSM/DEM)

Feature Description

The Set Image Path (DSM/DEM) function is used to configure paths for original images, processing result data storage, output coordinate system, output format, and other parameters in the DSM/DEM data production workflow.

Supported since SuperMap ImageX Pro 11i(2023) release.

Feature Entry

DSM Process Window -> Set Image Path (DSM/DEM) node.

Parameter Description

Parameter Name	Description	Type
Processing Path	Specify a local path to store all intermediate and result data generated during processing.	File
Output Coordinate System	Define the coordinate system for output imagery. All intermediate and result data will follow this coordinate system. Automatically applies to all processes and result data in the workflow. Note: Only effective when executing the complete workflow. Results from individual tools may not follow this setting.	PrjCoordSys
Output Format	Specify storage format for result imagery. Options: Unspecified, Tiff/GeoTIFF, Erdas Image, PCIDSK. Default: Tiff/GeoTIFF (uses original image format). Automatically applies to all processes and result data in the workflow.	FileType
Compression Method	Available only when Output Format is Tiff/GeoTIFF. Default: NONE. For details see Compression Method. Automatically applies to all processes and result data in the workflow.	CompressMethod
Plane Accuracy	Determines whether to perform rough correction on original images. Default: High (no correction). Choose Medium or Low to enable rough correction. Low: Image planar accuracy error >40 pixels High: Image planar accuracy error <15 pixels Medium: Auto-estimate accuracy when uncertain	ImageAccuracy
Forward-Looking Image	Specify forward-looking image paths. Input methods: Add File, Add Folder, Add List, Add Mosaic Data. Add Folder includes all images in subfolders.	File
Rear-View Image	Specify rear-view image paths. Input methods: Add File, Add Folder, Add List, Add Mosaic Data. Add Folder includes all images in subfolders.	File
Satellite Sensor Type	Specify satellite sensor type for original images. Correct sensor selection ensures proper radiometric calibration and metadata extraction. Supports GF-7, ZY3, ZY3-01, ZY3-02, ZY3-03 satellites.	SensorCategory
Image Filtering Criteria	Default: disabled (loads all images). When enabled: No filter: Load all images Single filter: Apply to forward/rear-view images separately Dual filters: Apply respective filters to both image types	Boolean
Backward Filtering String	Available when Image Filtering Criteria enabled. Filters rear-view images containing specified string in filenames.	String
Foresight Filter String	Available when Image Filtering Criteria enabled. Filters forward-looking images containing specified string in filenames.	String
Create Image Pyramid	Default: enabled. Builds pyramids using specified resampling method to improve display performance.	Boolean
Resampling Method	Available when Create Image Pyramid enabled. Default: Average. For details see Resampling Method.	ResamplingMethod
Reference Image	Geometrically accurate reference data for generating control points and geometric correction. Input methods: Add File, Add Folder, Add List, Add Mosaic Data. Add Folder includes all images in subfolders.	String
Load According to Original Image Range	Default: enabled. Loads reference images only within original image extent to optimize processing speed.	Boolean
Create Reference Image Statistics	Enables histogram-based display stretching. Default: disabled (no statistics generated). 8-bit data displays without stretching if disabled.	Boolean
Create Image Pyramid	Default: enabled. Builds pyramids for reference data using specified resampling method to improve display performance.	Boolean
Resampling Method	Available when Create Image Pyramid enabled. Default: NONE. For details see Resampling Method.	ResamplingMethod
Cloud Amount Data	Default: disabled. When enabled, filters original images using cloud coverage data.	Boolean
Data Source	Available when Cloud Amount Data enabled. Specify data source containing cloud coverage dataset.	DataSource
Dataset	Available when Cloud Amount Data enabled. Specify cloud coverage dataset.	DatasetVector
Time	When enabled, specify time range to filter images.	Boolean
Resolution	When enabled, specify resolution range (in meters) to filter images.	Boolean
Cloud Coverage	When enabled, specify maximum cloud coverage percentage to filter images (≤ specified value).	Boolean
Remove Duplicate Images	When enabled, removes duplicate images based on filenames.	Boolean
Elevation Data Type	Select elevation data source: SRTM V4: Default. Uses 90m global SRTM data. Fixed Elevation Value: Custom elevation value User Elevation Dataset: Specify DEM data in Tiff/GeoTIFF, Erdas Image, PCIDSK, or ArcInfoGrid format. ArcInfoGrid requires Add Folder selection.	ElevationDataType
Use Geoid	Required when elevation data uses orthometric height (MSL). Converts to ellipsoidal height. Not needed for ellipsoidal height data.	Boolean
Geoid File	Available when Use Geoid enabled. Specify local geoid file.	File

Output

Adds original and reference images to workflow, and configures global parameters including coordinate system and result paths.