mirror of https://github.com/NaN-tic/nanscan.git
44 lines
1.5 KiB
Python
Executable File
44 lines
1.5 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright (C) 2008 by Albert Cervera i Areny
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# albert@nan-tic.com
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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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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the
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# Free Software Foundation, Inc.,
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# 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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import sys
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if len(sys.argv) != 3:
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print "change-resolution.py resolution image"
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print
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print "Sets the resolution of the given image to the given value"
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print "Example: ./change-resolution.py 300 image.png"
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print
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print "This utility has been created because images obtained with"
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print "scanimage and scanadf sane utilities don't set resolution"
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print "correctly."
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sys.exit()
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# Convert resolution to dots per meter
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resolution = float(sys.argv[1]) * 1000 / 25.4
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file = sys.argv[2]
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image = QImage( file )
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image.setDotsPerMeterX( resolution )
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image.setDotsPerMeterY( resolution )
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image.save( file )
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