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Re: hieghlighting pixel [message #71098 is a reply to message #71097]

Thu, 27 May 2010 00:20

rogass
Messages: 200
Registered: April 2008

Senior Member

On 27 Mai, 06:56, afzal <afzal....@gmail.com> wrote:
> in my work i need to highlight some points(pixels) of binary image
> with some color(eg:-red). cud anybody help me to do this
> thanking you
> afzal

This will be difficult, because a binary image only has 0's and 1's.
You have to transform the image, e.g.:

tv,[[[255b*((ff=dist(256) gt 100.))]],[[255b*(ff eq 0b)]],
[[255b*(temporary(ff) eq 0)]]] ,true=3

or maybe in your case:

showresultonly=1; or 0 to keep the new result
condition = image eq 1; or 0 if you want to highlight the 0's
red=255b
green=0b; 255b if you want to show 0's in green you must also set blue
to 0b
blue=255b
; to show only the condition in red you have to set green and blue to
0b
result=[[[red*condition]],[[green*(~condition)]],
[[blue*(~temporary(condition))]]]
tvscl, showresultonly? temporary(result) : result,true=3 ; shows 1's
in red and 0's in blue according your condition

Hope it helps

CR

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[Message index]

		Re: hieghlighting pixel By: Craig Markwardt on Thu, 27 May 2010 07:37
		Re: hieghlighting pixel By: Juggernaut on Thu, 27 May 2010 06:59
		Re: hieghlighting pixel By: Juggernaut on Thu, 27 May 2010 06:58
		Re: hieghlighting pixel By: David Fanning on Thu, 27 May 2010 05:11
		Re: hieghlighting pixel By: rogass on Thu, 27 May 2010 00:25
		Re: hieghlighting pixel By: rogass on Thu, 27 May 2010 00:20

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