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# SARCorrelationRough
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Computes SAR correlation shift (rough shifts).
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## Description
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This application comutes rough shifts between two images : shift in range and shift in azimut. The inputs of this application are MultiLooked images (real images).
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## Parameters
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**Input Master image (real image)** `-inmaster image` *Mandatory* <br />
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Master Image (real image).
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**Input Slave image (real image)** `-inslave image` *Mandatory* <br />
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Slave Image (real image).
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**MultiLook factor on distance** `-mlran int` *Default value: 3* <br />
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MultiLook factor on distance.
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**MultiLook factor on azimut** `-mlazi int` *Default value: 3* <br />
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MultiLook factor on azimut.
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**rough shift in range dimension into SLC geometry (output of this application)** `-shiftranslc float` *Default value: 0* <br />
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rough shift in range into SLC geometry.
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**rough shift in azimut dimension into SLC geometry (output of this application)** `-shiftazislc float` *Default value: 0* <br />
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rough shift in azimut into SLC geometry .
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**rough shift in range dimension into ML geometry (output of this application)** `-shiftranml float` *Default value: 0* <br />
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rough shift in range into ML geometry.
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**rough shift in azimut dimension into ML geometry (output of this application)** `-shiftaziml float` *Default value: 0* <br />
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rough shift in azimut into ML geometry .
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**Available RAM (MB)** `-ram int` *Default value: 256* <br />
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Available memory for processing (in MB).
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## Examples
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From the command-line:
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```
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otbcli_SARCorrelationRough -inmaster s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_ML.tiff -inslave s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002_ML.tiff
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```
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From Python:
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```
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import otbApplication
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app = otbApplication.Registry.CreateApplication("SARCorrelationRough")
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app.SetParameterString("inmaster", "s1a-s4-slc-vv-20160818t014650-20160818t014715-012648-013db1-002_ML.tiff")
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app.SetParameterString("inslave", "s1b-s4-slc-vv-20160929t014610-20160929t014634-002277-003d71-002_ML.tiff")
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app.ExecuteAndWriteOutput()
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```
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## Limitations
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Only Sentinel 1 products and Cosmo are supported for now. |