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Re: Divide By Zero error [message #27898 is a reply to message #27884]

Thu, 08 November 2001 07:37

Logan Lindquist
Messages: 50
Registered: October 2001

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<DIV><FONT face=Arial size=2>Does anyone know what the minum window size is for
the fft function? Does it have to be divisble by a certain number? I am getting
0's with a 8x8 array. The array is pretty flat and dark [all around pixel value
of 50] but I wouldn't think that I should get zero's returned as a frequency
component. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>The solution that I see is to check to see if there
are zero's in the array and then either change them to 0.1 or skip that array
when trying to display it. [with a note to the user letting them know that no
frequency component can be found.]</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Hopefully someone will read this! I am going to try
calling RSI to see if they have an answer. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks, </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Logan Lindquist</FONT></DIV>
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<DIV>"Logan Lindquist" <<A
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href="news:9sc8tm$otu$1@sulawesi-fi.lerc.nasa.gov">news:9sc8tm$otu$1@sulawesi-fi.lerc.nasa.gov</A>...</DIV>
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[Message index]

		Re: Divide By Zero error By: Logan Lindquist on Sat, 10 November 2001 14:10
		Re: Divide By Zero error By: Logan Lindquist on Sat, 10 November 2001 14:06
		Re: Divide By Zero error By: Craig Markwardt on Fri, 09 November 2001 14:59
		Re: Divide By Zero error By: Logan Lindquist on Thu, 08 November 2001 07:37
		Re: Divide By Zero error By: Logan Lindquist on Wed, 07 November 2001 13:25
		Re: Divide By Zero error By: Nigel Wade on Fri, 09 November 2001 01:34
		Re: Divide By Zero error By: Stein Vidar Hagfors H[1] on Mon, 12 November 2001 08:52
		Re: Divide By Zero error By: Paul Manusiu on Thu, 08 November 2001 21:24
		Re: Divide By Zero error By: Paul Manusiu on Tue, 13 November 2001 17:57

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