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66 lines
2.6 KiB
Python
66 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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nearblack.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.core.parameters import ParameterRaster
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from processing.core.parameters import ParameterNumber
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from processing.core.parameters import ParameterBoolean
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from processing.core.outputs import OutputRaster
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from processing.algs.gdal.GdalUtils import GdalUtils
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class nearblack(GdalAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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NEAR = 'NEAR'
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WHITE = 'WHITE'
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def defineCharacteristics(self):
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self.name = 'Near black'
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self.group = '[GDAL] Analysis'
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self.addParameter(ParameterRaster(nearblack.INPUT, 'Input layer',
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False))
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self.addParameter(ParameterNumber(nearblack.NEAR,
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'How far from black (white)', 0, None, 15))
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self.addParameter(ParameterBoolean(nearblack.WHITE,
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'Search for nearly white pixels instead of nearly black',
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False))
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self.addOutput(OutputRaster(nearblack.OUTPUT, 'Output layer'))
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def processAlgorithm(self, progress):
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arguments = []
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arguments.append('-o')
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arguments.append(self.getOutputValue(nearblack.OUTPUT))
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arguments.append('-near')
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arguments.append(str(self.getParameterValue(nearblack.NEAR)))
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if self.getParameterValue(nearblack.WHITE):
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arguments.append('-white')
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arguments.append(self.getParameterValue(nearblack.INPUT))
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GdalUtils.runGdal(['nearblack', GdalUtils.escapeAndJoin(arguments)],
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progress)
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