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How to choose the pixels along a curve in an image [message #88086]

Wed, 19 March 2014 09:35

spright
Messages: 4
Registered: March 2014

Junior Member

Hi guys,
I want to get the values of pixels along a curve in an image. Could anyone give some suggestions? This curve may be got by a polynomial fit to a few points on the image.

For pixels along a straight line, it is easier as I can rotate the image to leave the line in horizontal or vertical direction and choose these pixels in an array of the image, like img[*,n]. But seems it is difficult for the one with curve.

Any suggestions? Thanks.

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[Message index]

		How to choose the pixels along a curve in an image By: spright on Wed, 19 March 2014 09:35
		Re: How to choose the pixels along a curve in an image By: David Fanning on Wed, 19 March 2014 10:03
		Re: How to choose the pixels along a curve in an image By: spright on Wed, 19 March 2014 11:46
		Re: How to choose the pixels along a curve in an image By: David Fanning on Wed, 19 March 2014 12:20
		Re: How to choose the pixels along a curve in an image By: spright on Wed, 19 March 2014 12:35
		Re: How to choose the pixels along a curve in an image By: spright on Wed, 19 March 2014 13:52
		Re: How to choose the pixels along a curve in an image By: kagoldberg on Sat, 22 March 2014 20:58
		Re: How to choose the pixels along a curve in an image By: sprightzhu on Sun, 23 March 2014 09:53

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