Mosaic Image

inputRasters

(Required)

Single or multiple imagery layers which will be mosaicked to the target imagery layer.

Syntax: JSON object describes the input from raster. At least one type of input needs to be provided in the JSON object. If multiple input types are given in the same JSON dictionary, the itemId takes priority.

Example:

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{"itemId": "<portal item id>"}
{"url": "<image service url>"}
{"itemIds": ["<portal item id>", "<portal item id>"]}
{"urls": ["<image service url>", "<image service url>"]}

targetRaster

(Required)

Specifies the target raster. The target raster can be an imagery layer item, image service URL, or a cloud raster format (CRF) raster dataset path. The source raster dataset of the image service must be cloud raster dataset format as well.

Example:

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{"itemId": "<portal item id>"}
{"url": "<image service url>"}
{"uri": "<crf raster dataset path>"}

mosaicOperator

(Optional)

Specifies the method that will be used to mosaic overlapping areas.

• FIRST: The output cell value of the overlapping areas will be the value from the first raster dataset mosaicked into that location.
• LAST: The output cell value of the overlapping areas will be the value from the last raster dataset mosaicked into that location. This is the default.
• BLEND: The output cell value of the overlapping areas will be a horizontally weighted calculation of the values of the cells in the overlapping area.
• MEAN: The output cell value of the overlapping areas will be the average value of the overlapping cells.
• MINIMUM: The output cell value of the overlapping areas will be the minimum value of the overlapping cells.
• MAXIMUM: The output cell value of the overlapping areas will be the maximum value of the overlapping cells.
• SUM: The output cell value of the overlapping areas will be the total sum of the overlapping cells.

mosaicColormapMode

(Optional)

Specifies the method that will be used to choose which color map from the input rasters will be applied to the mosaic output.

• FIRST: The color map from the first raster dataset in the list will be applied to the output raster mosaic. This is the default.
• LAST: The color map from the last raster dataset in the list will be applied to the output raster mosaic.
• MATCH: All the color maps will be considered when mosaicking. If all possible values are already used (for the bit depth), the tool will match the value with the closest available color.
• REJECT: Only the raster datasets that do not have a color map associated with them will be mosaicked.

noDataValue

(Optional)

All the pixels with the specified value will be set to NoData in the output raster dataset.

context

(Optional)

Contains additional settings that affect task execution. This task has the following settings:

• parallelProcessingFactor: The number of processes across which a tool will spread its operation.
• resamplingMethod: choose which resampling method to use when creating the raster dataset for download.
• NEAREST: Uses the value of the closest cell to assign a value to the output cell when resampling. This is the default.
• BILINEAR: Determines the new value of a cell based on a weighted distance average of the four nearest input cell centers.
• CUBIC: Determines the new value of a cell based on fitting a smooth curve through the 16 nearest input cell centers.

f

The response format. The default format is html.

Values: html | json | pjson