Rank: 1540 based on 97 downloads (last 30 days) and 3 files submitted
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Rongwen Lu

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Company/University
university of Alabama at Birmingham

Personal Profile:

UAB BME student

Professional Interests:
optical imaging

 

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28 Sep 2012 basic global thresholding this function is to estimate a threshold using the basic global threshholding algorithm Author: Rongwen Lu basic global threshol... 28 0
  • 4.0
4.0 | 1 rating
11 Dec 2011 image segmentation with EM algorithm To implement EM algorithm with Gaussian mixed model and to apply it to the image segmentation Author: Rongwen Lu em algorithm, gaussian mixed model, image segmentation 51 2
  • 5.0
5.0 | 1 rating
07 Dec 2011 Screenshot colormap and intensity modification on image sequence This GUI is to modify the intensity and colormap of a series of images. Author: Rongwen Lu image processing, gui, image sequence 18 0
Comments and Ratings by Rongwen View all
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13 Jun 2012 Adjust "quiver" arrowhead size Lets user easily tweak vectors plotted by "quiver", making arrowheads bigger or smaller. Author: Kevin J. Delaney

Thanks. IT's very useful.

17 Jan 2012 image segmentation with EM algorithm To implement EM algorithm with Gaussian mixed model and to apply it to the image segmentation Author: Rongwen Lu

The output argument is maskOut. Assuming k=3, then the value of each pixel of maskOut= p1*centroid1+p2*centroid2+p3*centroid3.
pi (i=1,2,3) is the probability that this pixel belong to the group i (i=1,2,3).
centroid i(i=1,2,3) is the center (RGB space) of the group i (i=1,2,3);

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05 Nov 2013 basic global thresholding this function is to estimate a threshold using the basic global threshholding algorithm Author: Rongwen Lu lee, andy

31 Jan 2013 image segmentation with EM algorithm To implement EM algorithm with Gaussian mixed model and to apply it to the image segmentation Author: Rongwen Lu gousal, shaik

can any one tell me the execution of this code because it errors like
??? Input argument "k" is undefined.

Error in ==> kGaussian_color_EM at 56
[p,u,v]=em(raw,k);

??? Input argument "k" is undefined.

Error in ==> kGaussian_color_EM at 56
[p,u,v]=em(raw,k);

??? Error: File: kGaussian_color_EM.m Line: 3 Column: 1
Function definitions are not permitted at the prompt or in scripts.
please send me the details of this code to mohammadgousal@gmail.com. thank you

17 Jan 2012 image segmentation with EM algorithm To implement EM algorithm with Gaussian mixed model and to apply it to the image segmentation Author: Rongwen Lu Lu, Rongwen

The output argument is maskOut. Assuming k=3, then the value of each pixel of maskOut= p1*centroid1+p2*centroid2+p3*centroid3.
pi (i=1,2,3) is the probability that this pixel belong to the group i (i=1,2,3).
centroid i(i=1,2,3) is the center (RGB space) of the group i (i=1,2,3);

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