imageutils.maskImage command "TypeError: a float is required"

[Llion Preston]

Hi Pete/Dan,

I'm trying to use a binary mask to mask out pixels (re-sampled from 250 m to 30 m for sake of re-masking) using imageUtils.maskImage but am receiving the following error: 

import rsgislib

from rsgislib import imageutils

print("Converting non-Corn (2015) pixels to NoData")

imagemask = 'corn_2015_iowa.tif'

outputimage = 'NDVI_corrected_masked.kea'

gdalformat = 'KEA'

datatype = rsgislib.TYPE_32FLOAT

outvalue = '-9999'

maskvalue = '0'

rsgislib.imageutils.maskImage('NDVI_30.tif', imagemask, outputimage, gdalformat, datatype, outvalue, maskvalue)

Traceback (most recent call last): 

File "./mask_test.py", line 11, in <module>

rsgislib.imageutils.maskImage('NDVI_30.tif', imagemask, outputimage, gdalformat, datatype, outvalue, maskvalue)

TypeError: a float is required#

I've ran gdalinfo on both the imagemask and the input image and both appear to be float data types so I'm not sure what I'm doing wrong?

Thanks,

Llion

[Pete Bunting [pfb]]

HI Llion, 

outvalue = ‘-9999 and maskvalue = ‘0’ should not have quotes (i.e., be a string) they should be numbers: outvalue = -9999 and maskvalue = 0

Best wishes, 

Pete

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[Llion Preston]

Hi Pete,

Thanks again for your help!

Cheers,

Llion

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