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Re: Image division causes Floating illegal operand [message #48747]

Fri, 19 May 2006 09:11

David Streutker
Messages: 34
Registered: June 2005

Member

Is your mask made up of zeros and ones? If so, you are dividing by
zero in all of the masked pixels, causing the error. Because you are
already masking the numerator (partA), it's redundant to mask the
denominator (partB). Try using:

partA = (b1*coef[0,1] - b0*coef[0,0])*mask
partB = b1*coef[0,1] + b0*coef[0,0]

Alternatively, you could apply the mask to the NDVI image itself.

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[Message index]

		Re: Image division causes Floating illegal operand By: David Streutker on Fri, 19 May 2006 09:11
		Re: Image division causes Floating illegal operand By: Paul Van Delst[1] on Thu, 18 May 2006 11:13
		Re: Image division causes Floating illegal operand By: Paul Van Delst[1] on Thu, 18 May 2006 11:13

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