Rank: 58 based on 669 downloads (last 30 days) and 24 files submitted
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Robert Bemis

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I started using MATLAB in 1985. Top of the line PCs had no hard drive, only 2e-3 GHz CPU, and 5e-4 GB RAM. Look how far we have come since then. Eventually I joined MathWorks. As an application engineer I met thousands of MATLAB users and helped them solve problems. As a quality engineer within the development organization I helped make MATLAB itself even better. Over the years I have used MATLAB to solve a wide range of technical computing problems. I enjoy exploring new problem spaces for myself and helping others learn to use MATLAB.

Professional Interests:
data analysis, visualization & algorithm development, signal & image processing, all sorts of scientific/engineering computational problem solving

 

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19 Aug 2010 Published MATLAB Files DNA MicroArray Image Processing Case Study Case study used in Biomedical and Image Processing seminars (highlights algorithm development). Author: Robert Bemis biotech, intensity, segment spot, detect, crop, remove background 19 13
  • 4.85714
4.9 | 14 ratings
19 Aug 2010 Screenshot Demo files from Image Processing Webinar This package contains demos that were used during an Image Processing webinar Author: Robert Bemis tutorial, example, image processing, demos, webinar, tutorials 34 5
  • 3.0
3.0 | 7 ratings
19 Aug 2010 Published MATLAB Files Image Color Reduction Reduce number of image colors. Author: Robert Bemis color, rgb indexed image rep... 11 1
  • 4.5
4.5 | 2 ratings
19 Aug 2010 Screenshot Lidar Imaging Case Study(with Geometric Distortion Correction) Case study used in Advanced Image Processing seminars (highlights algorithm development) Author: Robert Bemis segment objects, application, remove distortion bac..., measure features 13 2
  • 3.33333
3.3 | 3 ratings
19 Aug 2010 Published MATLAB Files AdvCurveFit Solve complex curve fit problem with parameter pooling & stratification by nonlinear least-squares. Author: Robert Bemis optimization, curve, fitting, parameters, pooled, pooling 12 0
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27 Aug 2011 SubFuns Command-line utility to list all function declarations within a specified m-file. Author: Robert Bemis

Thanks to Jon for bringing to my attention the class method limitation.

Note that SubFuns was written years before the new MATLAB class system was developed. Rather than just hack SubFuns for this case I'd rather do something elegant and robust but not immediately (other priorities). (That would be a good opportunity to address Telmo's case too.) Meanwhile, here's a workaround.

>> SubFuns +classdir/methodfcn

Enjoy!
31 Mar 2010 Thresholding Tool Interactively select intensity level for image thresholding. Author: Robert Bemis

David James, and anyone else who sees upside-down text, please see if this applies.
http://www.mathworks.com/support/solutions/en/data/1-91JU4U/?solution=1-91JU4U

01 Dec 2009 MRI Brain Segmentation Neuroimaging Case Study for seminars and webinars. Author: Robert Bemis

Note for users who get stuck by the IMVIEW error. That function was replaced by IMTOOL (years ago). In analyze_series8.m just replace all occurrences of "imview" with "imtool" (and save).

See also
>> doc imview
09 Jul 2009 Animated GIF How to generate an animated GIF from MATLAB Author: Robert Bemis

Luca, see the help for GETFRAME. The optional arguments are what you need. :)
22 Jun 2009 Thresholding Tool Interactively select intensity level for image thresholding. Author: Robert Bemis

Nathan and others, thanks for all the feedback. Some users have been tripped up by the requirement that the input must be an intensity image. RGB color is not supported. I will update the function to for this at the beginning and stop immediately with a more helpful error message.
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13 May 2013 round2 Round input to nearest multiple of arbitrary value. Author: Robert Bemis Will

Does not work in all cases. Try rounding 3.55 to 1 decimal place and you get 3.5 instead of 3.6
20 Apr 2013 MRI Brain Segmentation Neuroimaging Case Study for seminars and webinars. Author: Robert Bemis naila

I couldn't able to download the code. please can any one help me?
15 Apr 2013 Thresholding Tool Interactively select intensity level for image thresholding. Author: Robert Bemis Gothwal, Rajesh

error occured ????
rgbImage=imread('image.jpg');
thresholdvalue=thresh_tool(rgbImage)
??? Undefined function or method 'thresh_tool' for input arguments of type 'uint8'.
09 Feb 2013 Light Bartlein Color Maps Generates one of four colormaps using schemes proposed in technical literature Author: Robert Bemis Davis

sorry, that's line 44 -- where arg parsing is done
09 Feb 2013 Light Bartlein Color Maps Generates one of four colormaps using schemes proposed in technical literature Author: Robert Bemis Davis

Great function, though it bugs if you call lbmap with only a text argument, e.g.
lbmap('Blue')
Error using /
Matrix dimensions must agree.
Error in linspace (line 31)
y = d1 + (0:n1).*(d2 - d1)/n1;
Error in lbmap (line 62)
idx2 = linspace(0,1,n);

a simple change in line 4 can resolve this.
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example, application, image processing, tutorial, color
Files Tagged by Robert View all
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21 Jun 2012 Screenshot Arduino Target Develop applications for the Arduino platform using Simulink®. Author: Doug Eastman arduino, simulink target, rtw target, rtw, potw, pick of the week 172 53
  • 5.0
5.0 | 11 ratings
19 Aug 2010 Published MATLAB Files DNA MicroArray Image Processing Case Study Case study used in Biomedical and Image Processing seminars (highlights algorithm development). Author: Robert Bemis biotech, intensity, segment spot, detect, crop, remove background 19 13
  • 4.85714
4.9 | 14 ratings
19 Aug 2010 Screenshot Demo files from Image Processing Webinar This package contains demos that were used during an Image Processing webinar Author: Robert Bemis tutorial, example, image processing, demos, webinar, tutorials 34 5
  • 3.0
3.0 | 7 ratings
19 Aug 2010 Published MATLAB Files Image Color Reduction Reduce number of image colors. Author: Robert Bemis color, rgb indexed image rep... 11 1
  • 4.5
4.5 | 2 ratings
19 Aug 2010 Screenshot Lidar Imaging Case Study(with Geometric Distortion Correction) Case study used in Advanced Image Processing seminars (highlights algorithm development) Author: Robert Bemis segment objects, application, remove distortion bac..., measure features 13 2
  • 3.33333
3.3 | 3 ratings

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