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Add --output-rescale #126

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Add --output-rescale #126

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61fbae0
Add --output-rescale
tfarago Dec 16, 2022
6914d9d
writer: turn rescale on if min or max given
tfarago Dec 22, 2022
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9 changes: 7 additions & 2 deletions tofu/config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -34,13 +34,18 @@
'output-minimum': {
'default': None,
'type': float,
'help': "Minimum value that maps to zero",
'help': "Minimum value that maps to zero (turns on --output-rescale)",
'metavar': 'MIN'},
'output-maximum': {
'default': None,
'type': float,
'help': "Maximum input value that maps to largest output value",
'help': "Maximum input value that maps to largest output value (turns on --output-rescale)",
'metavar': 'MAX'},
'output-rescale': {
'default': False,
'action': 'store_true',
'help': "If true rescale grey values either automatically or according to set "
"--output-minimum and --output-maximum"},
'output-bytes-per-file': {
'default': '128g',
'type': convert_filesize,
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8 changes: 6 additions & 2 deletions tofu/tasks.py
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Expand Up @@ -23,16 +23,20 @@ def get_writer(params):

outname = params.output
LOG.debug("Writing output to {}".format(outname))
writer = get_task('write', filename=outname)
writer = get_task('write', filename=outname, rescale=params.output_rescale)

writer.props.append = params.output_append

if params.output_bitdepth != 32:
writer.props.bits = params.output_bitdepth

if params.output_minimum is not None and params.output_maximum is not None:
if params.output_minimum is not None:
writer.props.minimum = params.output_minimum
if params.output_maximum is not None:
writer.props.maximum = params.output_maximum
if params.output_minimum is not None or params.output_maximum is not None:
LOG.info('--output-minimum or --output-maximum specified, turning --output-rescale on')
writer.props.rescale = True
if hasattr (writer.props, 'bytes_per_file'):
writer.props.bytes_per_file = params.output_bytes_per_file
if hasattr(writer.props, 'tiff_bigtiff'):
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