Chaowei Chen

University of Maryland

Attivo dal 2011

Followers: 1 Following: 0

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Professional Interests: Human machine interface, integration of software and hardware, image processing, microscopy, convex optimization

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Creating a movie sequence from rgb images
for frame_idx = start_frame:end_frame image = dataset(:,:,frame_idx); msk = mask_stack(:,:,frame_idx); ...

quasi 9 anni fa | 0

| accettato

Domanda

The command line is too long. Error: An error occurred while shelling out to javac (error code = 1). Unable to build executable.
I am using mcc to build java classes from .m files The command is following: mcc -W "java:matlabapi,DefaultClass" -T lin...

oltre 10 anni fa | 0 risposte | 0

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Domanda

oltre 10 anni fa | 1 risposta | 0

1

risposta

Domanda

oltre 10 anni fa | 0 risposte | 0

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Inviato

Sudoku
Solves sudoku puzzle. Generates all possible answers.

circa 13 anni fa | 1 download |

0.0 / 5

Inviato

google
google.m is a simple shell interface to initiate Google search in Matlab.

circa 13 anni fa | 1 download |

3.7 / 5

Inviato

remove varables in MAT file(s)
Want to delete same variables in possibly many MAT files? removevar is for you!

oltre 13 anni fa | 1 download |

3.0 / 5

Inviato

select current object
select current object by buttons. Each button represents one object which is either axes, image, etc

oltre 13 anni fa | 1 download |

0.0 / 5

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saves variables into MAT file matfile
saves variables into MAT file matfile

oltre 13 anni fa | 1 download |

0.0 / 5

Inviato

loads one variable from MAT-file(s) into workspace
Need to load a same variable from a list of MAT files? This is for you!

oltre 13 anni fa | 1 download |

0.0 / 5

Domanda

change shorkeys "ctrl+shift+0" for editor
I understand that ctrl+shift+0 focuses window to the editor. I wonder if it is possible to change "ctrl+shift+0" to "ctrl+~" fo...

oltre 13 anni fa | 1 risposta | 0

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Domanda

how to set position and outerposition respectively the same as from another axes?
I want to display a scalebar on a 3d plot. When I rotate the 3d plot, I want to keep the scalebar still. The way I approach it i...

quasi 14 anni fa | 1 risposta | 0

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Risposto
how to draw a hyperboloid?
[x,y]=meshgrid(-10:10); r_sq=x.^2+y.^2; z=sqrt(r_sq+1); surf(x,y,z)

oltre 14 anni fa | 0

Risposto
make result matrix for comparing of (for example) 20 inputs matrix with 20 refrences matrix
You can use cell matrix, which contains mixed type of values. In your case, the first column and row are string while the rest ...

quasi 15 anni fa | 1

| accettato

Risposto
How to catch reaction time with MATLAB; How to save text file from command window automatically
1. doc diary 2. I think the problem happens at kp=find(kp) It means wherever kp is nonzero, assign the position to kp. My m...

quasi 15 anni fa | 0

Risposto
Inline Indexing to Dynamic Field Names
Varnames={'var1', 'var2', 'varx', 'vary'}; %if varx is scalar TestStruct.(Varnames{1,3}) = 0 %if varx is array TestS...

quasi 15 anni fa | 1

Risposto
To get dominant eigen vector
[U,S,V]=svd(C) gives you the singular value decomposition of C. i.e., C=U*S*V' where the singular values S are in decreasing or...

quasi 15 anni fa | 1

| accettato

Risposto
how to draw tangent line simulink graph ?
function plot_tangent(x,y) if nargin<2, x=1:0.01:10;y=sin(x); end s=diff(y)./diff(x); f_tangent=@(a...

quasi 15 anni fa | 0

Risposto
Play Video in MATLAB GUI with other Objects
function main [f,p]=uigetfile('*.avi');cd(p) h_play=uicontrol('style','pushbutton','callback',@play_vid,'string','pl...

quasi 15 anni fa | 0

Risposto
Play Video in MATLAB GUI with other Objects
function main vid = videoinput('winvideo', 1); figure; h_play=uicontrol('style','pushbutton','callback',@play_vid,'stri...

quasi 15 anni fa | 0

Risposto
Play Video in MATLAB GUI with other Objects
function main(var_3D) if nargin<1, var_3D=randn(100,100,100);end [R,C,Frame]=size(var_3D); h_play=uicontrol('st...

quasi 15 anni fa | 0

| accettato

Risposto
How to use spatial image coordinates to get image pixel values??
You are almost there. ROI=roipoly(img); pixValue=img(ROI);

quasi 15 anni fa | 0

Risposto
How to scan a user-input sentence/phrase for the individual words
Just a subtle improvement to Jiang's approach. (To get rid of the period symbol) InputText='This is is my testing speech.'; ...

quasi 15 anni fa | 0

Risposto
How can i extend my graph to a certain point in the graph
I think you probably just want to do axis([0 16 0 500])

quasi 15 anni fa | 1

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autocorrelate rows of matrix without using a for loop
The idea is to convert mat to cell since each row is independent. After processing, convert cell back to mat. a2=mat2cell(a,...

quasi 15 anni fa | 0

Risposto
I need to import a file of unsupported format into Matlab (multiple image sequence)
Does the file follows a certain format like tif? In this case, frame_k = imread('filename.tif',k); If it is a custom format,...

quasi 15 anni fa | 0

Risposto
Delete/Hide points of a surface
figure;hold on; h1=plot(1,1,'b.'); h2=plot(2,2,'r.'); hold off % if you want to hide h2 set(h2,'visible','off') % if...

quasi 15 anni fa | 0

Risposto
put time stamp on video using videowrite
clc;clear;close all vid = videoinput('winvideo', 1); set(vid,'TriggerRepeat',Inf); vid.FrameGrabInterval = 1; vid_sr...

quasi 15 anni fa | 1

Risposto
Generalized eigenvalue problem
If V'*B*V = I, This indicates B is identity matrix, therefore, simply [V,D] = eig(A)

quasi 15 anni fa | 0

Risposto
Change file extension from .wav to .res
Supposing you just want to rename the file, do this ! ren temp.wav temp.res

quasi 15 anni fa | 0

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