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A problem in using imhist to display histogram of indexed image
First i convert the image to an indexed image, and use only 5 colors to show what is my problem. clear img = imrea...
8 years 前 | 1 个回答 | 1
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个回答When i make simulation, the plot at workspace is different the plot at scope?? .. I want the plot at workspace same as the plot at scope
Hi Use simulation time vector to plot in command widow, maybe the simulation ran with variable steps. Something like this: ...
9 years 前 | 0
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use evalfis to read input under a range
In your code, input isn't same as [88 134 144]. They are logical (0,1): evalfis([88 134 144]) but: evalfis([0 1 1...
11 years 前 | 0
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Open many files using uiopen or uigetfile
filename = uigetfile('*.*', 'All Files (*.*)','MultiSelect','on');
11 years 前 | 1
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How to use find function in cell array
C = {100*rand(100,2);100*rand(100,2);100*rand(100,2)}; X = cellfun(@(x) find(x(:,1)<27),C,'Un',0);
11 years 前 | 0
A moving point plot in MATLAB figure with animation.
n = 50; XY = 10 * rand(2,n) - 5; for i=1:n plot(XY(1,i),XY(2,i),'or','MarkerSize',5,'MarkerFaceColor','r') ...
11 years 前 | 3
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Generate gaussian random points in 3D space with a given mean position.
m = [2 0 2]; s = 1; n = bsxfun(@plus,m,s.*randn(100,3)); plot3(n(:,1),n(:,2),n(:,3),'.r') M = mean(n,1) S =...
11 years 前 | 2
Write in Excel With Matlab on continues Cells
First put your data in a cell array then write it: rangT = 1:10; maximox = rand(10,10); fprintf('Select file locati...
11 years 前 | 0
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how to eliminate the error
@time ===> @times s1.coefs=bsxfun(@times,s1.coefs(:,1:end-1),s1.order:-1:1)
11 years 前 | 1
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how to draw a temperature distribution on (x,y,z)?
t defines color: [x y] = meshgrid(-10:0.1:10); z =zeros(size(x)); z(x+2*y>-9 & 2*x+y<9 & x-y>-10 & x-y<15) = 1; ...
11 years 前 | 0
Stor data in a vector
p_t2=1:1000 pt2=1:40 JJ=[]; for z=1:40 for v=1:25 XX=p_t2(v)./pt2; JJ=[JJ sum(XX)]; ...
11 years 前 | 0
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im trying to make array of images s1,s2,s3 and s4 and want to show them in different figures ........... what is wrong over there? .........
clear arr={s1,s2,s3,s4}; for i=1:4 b=imread(arr{i}); figure imshow(b); end
11 years 前 | 0
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how to use "if" statement properly?
A=rand(10,1); B=rand(10,1); z=B./A; z(z<1)=-1./z(z<1)
11 years 前 | 1
how to draw circles with different radii
n=10; X=rand(n,1)*10; Y=rand(n,1)*10; R=rand(n,1)*3; P=[0:0.1:2*pi 0]; xr=R*cos(P); yr=R*sin(P); X_C=bsxf...
11 years 前 | 1
inverse laplace transformation and plot of transfer function
Why residue(b,roots(a))? b=[0,-1.387778780781446e-017, -2.775557561562891e-017, 3.333333333333329e-005]; a=[1.0000000000...
11 years 前 | 0
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Getting element row and column (index location) out of a matrix?
Resultant=rand(10,10); [B,IX] = sort(Resultant(:),'descend') [r c] = ind2sub(size(Resultant),IX(1:5))
11 years 前 | 1
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histogram of 3D intensity image and normalize the intensity by linearly fitting the histogram to the ICBM-152
A=uint8(randi(256,256,124,256)-1); H1=imhist(A(:)); % Or %H2=histc(A(:),0:255); B=imread('cameraman.tif'); ...
11 years 前 | 0
Organize data as vector matrix and do calculation ?
lightV = zeros(1, 1, 3); lightV(1,1,1) = 0.5; lightV(1,1,2) = 0.4; lightV(1,1,3) = 0.7; [Az El] = meshgrid(0:60:36...
11 years 前 | 0
Howto arrange panels in desktop
After adding editor panel in position [1,2], drag workspace panel and drop it in right half of editor panel: <<http://snag.g...
11 years 前 | 0
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Export to a fixed width text file
A={'s09' 1111222003 321 'P' 'ehz';'z09' 1011222003 321 'O' 'edz'}; A=cellfun(@num2str,A,'Un',false) B=strcat(A(:,1),{' ...
11 years 前 | 0
horzcat error while using ' '
names=['john'; 'ravi'; 'mary'; 'xiao'] howdy=['10'; '20'; '30' ;'40'] result=[names repmat(' ',4,1) howdy]
11 years 前 | 0
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I have a matrix which is [y1 x1 y2 x2 y3 x3.......]. The size variable depends on the input, I wanna extract y(i) and x(i) seperately from this matrix.
a=1:10 y=a(1:2:end)' x=a(2:2:end)'
11 years 前 | 0
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Maclaurin Series function in matlab
function Maclaurin n=5; x=input('enter the x value: '); epsilon_s=(0.5*10^(2-n)); epsilon=100; maclaurin(1)=1; ...
11 years 前 | 0
Elementwise multiplication, function definition
[x, y] = meshgrid(linspace(0,400,400),linspace(0,30000,400)); A1 = -8.269000000000000; m1 = 2.071000000000000; m2...
11 years 前 | 0
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Failed to add uniform noise to the image
Hi. You don't need imnoise: round(128+0.2)=128 with 0.1 and 0.2 like you didn't add any noise. Uniform noise with zero m...
11 years 前 | 0
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could you fix these codes?
Hi. Use cell array: I=imread('moon.tif'); C=mat2cell(I(1:32,1:32),8*ones(1,4),8*ones(1,4)); imshow(C{5},'InitialMagni...
11 years 前 | 0
problem with ssim function
Hi. It's default window: window = fspecial('gaussian', 11, 1.5); If input images has smaller size than 11*11 (it's windo...
11 years 前 | 0
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Create an anonymous function after Symbolic differentiation
Hi. syms x f=@(x) x^3+3*x+1; g=diff(f(x)) h=@(y) subs(g,y)
11 years 前 | 0
Troubles with modeling step response in Simulink
Delete your Integrator block, you didn't define it in your code.
11 years 前 | 0
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