Rank: 755 based on 95 downloads (last 30 days) and 5 files submitted
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Joao Henriques

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Company/University
University of Coimbra

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Personal info and publications:
http://www.isr.uc.pt/~henriques/

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Files Posted by Joao View all
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(last 30 days) 		Comments Rating
27 Nov 2012 strjoin Joins cell array into a single string, with delimiter. Small, vectorized and fast. Author: Joao Henriques string, join, str 3 1
12 Feb 2012 Screenshot disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques display, matrix, table, labels 14 4
  • 5.0
5.0 | 2 ratings
12 Dec 2010 Screenshot Figure to play and analyze videos with custom plots on top A figure ready to scroll through and play videos. You can also draw any custom graphics on it. Author: Joao Henriques video processing, video, figure, visualization, video analysis, image processing 14 0
07 Jul 2010 Screenshot Fast edges of a color image (actual color, not converting to grayscale) Edges of a color image by the max gradient method. Author: Joao Henriques edges, edge detection, color image, image processing 56 6
28 Apr 2010 Screenshot textborder - Higher contrast text using a 1-pixel-thick border Draws text on a figure with a 1-pixel-thick border. Author: Joao Henriques border, figure, text, visualization 8 0
Comments and Ratings by Joao View all
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13 Jun 2013 Modified CMRmap Produces a colour colormap, of arbitrary length, that is monochrome-compatible. Author: Christopher Hummersone

05 Feb 2013 Recursive directory listing - Enhanced RDIR Files and directories listing, including recursive and other special features Author: Thomas Vanaret

10 Dec 2012 Improved Nystrom Kernel Low-rank Approximation efficient, self-complete implementation of improved Nystrom low-rank approximation Author: Kai

Works as advertised! To train a linear SVM in the Nystrom feature-space, replace the computation of G and Ktilde at the end of INys() with:

M = Ve(:,pidx) * inVa;
Mdata = E * M;

then train SVM with Mdata (which has all training samples in the new feature space). To compute the same features for a test vector z, use:

Mz = exp(-sqdist(z', center')/kernel.para) * M;

and classify with the same linear SVM.
12 Feb 2012 disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques

I'm glad you found it useful! It certainly makes console output much more appealing, that's why I shared it :)

I think what you mean in your example code is:
>>disptable(exmplematrix,S,'A|B|C|D')

Notice that S is a variable, not a string.

But you're right, there's a small bug with cell arrays. I should have tested that case better. I'm updating the file, but if you don't want to wait, it's simple: just replace iscellarray with iscellstr (it appears 2 times in the file). That's all!
16 Dec 2011 maximize Platform independent function to maximize a figure window. Author: Oliver Woodford

Works as advertised, thank you!
Comments and Ratings on Joao's Files View all
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12 Jun 2013 disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques Gregoire, Jerry

Very nice. Quick easy. saves much fprintf format hassle. Thanks
28 Nov 2012 strjoin Joins cell array into a single string, with delimiter. Small, vectorized and fast. Author: Joao Henriques Simon, Jan

Have you seen: http://www.mathworks.com/matlabcentral/fileexchange/26077-cstr2string ? This C-Mex pre-allocates the output to gain more speed. But even in pure Matlab this might be faster than expanding the input cell string:
delimiter = strrep(delimiter, '\', '\\');
s = sprintf(['%s', delimiter], c{:});

24 Sep 2012 disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques He, Monica

Thank you!
12 Feb 2012 disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques Henriques, Joao

I'm glad you found it useful! It certainly makes console output much more appealing, that's why I shared it :)

I think what you mean in your example code is:
>>disptable(exmplematrix,S,'A|B|C|D')

Notice that S is a variable, not a string.

But you're right, there's a small bug with cell arrays. I should have tested that case better. I'm updating the file, but if you don't want to wait, it's simple: just replace iscellarray with iscellstr (it appears 2 times in the file). That's all!
11 Feb 2012 disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques Isiko, Don

Hi there ^^, just wanted to say thank you very much for this submission! It really helped make my user interface for my project softer on the eyes haha. I was just wondering however, could you also give an example of using as part of the input? I tried the following but matlab wouldn't allow it...

>>disptable(exmplematrix,'S','A|B|C|D')

Where S is a string matrix defined like so:

S={'D1' 'D2 'D3' 'D4'}
S= 'D1' 'D2' 'D3' 'D4'

But whenever I try it says:

??? Undefined function or method 'iscellarray' for input arguments of type 'cell'.

Any help available with this? I'm doing this because I want to make a string that adjust its size depending upon results i.e

Bounce 1 Bounce 2 Bounce 3

Becomes:

Bounce 1 Bounce 2

When there are only results for 2 bounces because of initial values

Thanks!!

Top Tags Applied by Joao
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figure, visualization, border, color image, display
Files Tagged by Joao View all
  • 1 - 5 of
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Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Nov 2012 strjoin Joins cell array into a single string, with delimiter. Small, vectorized and fast. Author: Joao Henriques string, join, str 3 1
12 Feb 2012 Screenshot disptable - Display matrix with column or row labels Displays a matrix with per-column or per-row labels. Author: Joao Henriques display, matrix, table, labels 14 4
  • 5.0
5.0 | 2 ratings
12 Dec 2010 Screenshot Figure to play and analyze videos with custom plots on top A figure ready to scroll through and play videos. You can also draw any custom graphics on it. Author: Joao Henriques video processing, video, figure, visualization, video analysis, image processing 14 0
07 Jul 2010 Screenshot Fast edges of a color image (actual color, not converting to grayscale) Edges of a color image by the max gradient method. Author: Joao Henriques edges, edge detection, color image, image processing 56 6
28 Apr 2010 Screenshot textborder - Higher contrast text using a 1-pixel-thick border Draws text on a figure with a 1-pixel-thick border. Author: Joao Henriques border, figure, text, visualization 8 0

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