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WPS orchestration example, image metadata extraction

Workflow Entry: WPS orchestration example, image metadata extraction

Created at: 03/03/11 @ 09:26:24 Last updated: 03/03/11 @ 09:26:28

Version 1 (of 1)

Version created on: 03/03/11 @ 09:26:24 by: Jorgejesus | Revision comments Expand

Title: WPS orchestration example, image metadata extraction

Type: Taverna 2

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Description

1 image inputs (GeoTIFF, JPEG,PNG), metadata from gdalinfo and histogram analisys, histogram result is a PNG image in base64 coding (default WPS service encoding) that will be converted to binary.

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Workflow Components

Authors (2)

Titles (1)

Descriptions (1)

Inputs (1)

Name	Description
imageInput	Workflow using WPS services. 2 WPS services are called: histogramprocess and gdalinfo. Gdalinfo is WPS wrapper arround gdalinfo command (http://www.gdal.org/gdalinfo.html), stdout response will contain the image's metadata Histograprocress, calculates the histogram for each image band. The process uses GDAL libraries and Numpy, and it runs best GeoTiff images Workflow using WPS services. 2 WPS services are called: histogramprocess and gdalinfo. Gdalinfo is WPS wrapper arround gdalinfo command ()

Processors (7)

Name	Type	Description
ExecuteProcess_histogramprocess	wsdl
ExecuteProcess_histogramprocess_DataInputs	xmlsplitter
ExecuteProcess_histogramprocess_ProcessOutputs	xmlsplitter
Decode_Base_64_to_byte_Array	localworker
ExecuteProcess_gdalinfo	wsdl
ExecuteProcess_gdalinfo_DataInputs	xmlsplitter
ExecuteProcess_gdalinfo_ProcessOutputs	xmlsplitter

Beanshells (0)

Outputs (2)

Name	Description
histogramPNG
imageDescription

Datalinks (9)

Source	Sink
ExecuteProcess_histogramprocess_DataInputs:output	ExecuteProcess_histogramprocess:DataInputs
imageInput	ExecuteProcess_histogramprocess_DataInputs:imageInput
ExecuteProcess_histogramprocess:ProcessOutputs	ExecuteProcess_histogramprocess_ProcessOutputs:input
ExecuteProcess_histogramprocess_ProcessOutputs:histogramOutputResult	Decode_Base_64_to_byte_Array:base64
ExecuteProcess_gdalinfo_DataInputs:output	ExecuteProcess_gdalinfo:DataInputs
imageInput	ExecuteProcess_gdalinfo_DataInputs:input
ExecuteProcess_gdalinfo:ProcessOutputs	ExecuteProcess_gdalinfo_ProcessOutputs:input
Decode_Base_64_to_byte_Array:bytes	histogramPNG
ExecuteProcess_gdalinfo_ProcessOutputs:stdoutResult	imageDescription

Coordinations (0)

Information Workflow Type

Taverna 2

Information Original Uploader

Jorgejesus

Information License

All versions of this Workflow are licensed under:

Information Credits (1)

(People/Groups)

Jorgejesus

Information Attributions (0)

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None

Information Tags (9)

Original Uploader tags

gdal
|
gdalinfo
|
histogram
|
image
|
netmar
|
orchestration
|
services
|
test
|
wps

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Information Attributed By (0)

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Information Favourited By (1)

Chrisser

Information Statistics

199 viewings

262 downloads

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Citations (0)

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Version History

Earliest Version:
[1] - WPS orchestration example, image metadata extraction

Created on: Thursday 03 March 2011 @ 09:26:24 (GMT)

Created by: Jorgejesus

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Other workflows that use similar services (10)

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Taverna 2

Original Uploader

Jorgejesus

Geottif image reprojection (v1)

Created: 16/09/11 @ 17:32:25 | Last updated: 16/09/11 @ 17:32:29

Credits: Jorgejesus

License: Creative Commons Attribution-Share Alike 3.0 Unported License

Example of a WPS service that reprojects a geoTIFF by using a EPSG code. THe example image is in EPSG:32119, lcc projection for north caroline and it comes from GRASS-GIS spearfish dataset. The image is reprojected into EPSG:4326 (lat/long): Metadata: http://rsg.pml.ac.uk/wps/generic.cgi?request=describeProcess&service=wps&identifier=reprojectImage&version=1.0.0 Library: gdalwarp

Rating: 0.0 / 5 (0 ratings) | Versions: 1 | Reviews: 0 | Comments: 0 | Citations: 0

Viewed: 18 times | Downloaded: 3 times

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