Sign in
Search matlab
Subscribe to matlab
matlab by Keywords
Atanh | Autocorrelation | Bandpass Filter | C++ | Conv | Database | Deconv | Excel | FFT | Filter | Filtering | FIR | Fourier Transfrom | FSK | Gaussian Noise | Haykin | IFFT | Image | Java | LFSR | LMS | LPC | MEX | OFDM | QPSK | Radix | Random | Sampling | Segmentation | Simulink | Visual Basic | Waveform | Wavelet
Discussion Groups
Discussion Groups | Matlab DSP
Technical discussion about Matlab and issues related to Digital Signal Processing.
Search Results for "image"
plotting matrix to image [4 Articles]
S.KAMALESH VIVEK - Apr 26 2005
hi friends,
I need to plot a matrix data (2-Dimensional-MxN) stored in a variable (say a) to an image. i just used, size of a is 751x550
figure,imshow(a).
But ... 
drawing on the image [2 Articles]
swamigmv - Sep 17 2007
hi all
i am doing a project on image segmentation where i have to specify the
area to be segmented(not exactly but a rough scketch)
now how can i get that sketch i draw on the ... Modifying Bits in an image - Need Urgent Help
msnustian - May 23 2007
hi,
I am new to Matlab. I have a question..and want to know the solutions
as earlier as possible.
Suppose i have an image and i converted it to binary.
Treating the ima... Binary image
k.al...@surrey.ac.uk - Jan 28 2007
Hello,
I have got Binary image from medical simulation. How can I read this image and covert it to ASCI image please?
Khalid
... image processing using matlab [2 Articles]
harishnrn - Mar 31 2006
hi,
actually i am working on image processing. i have a blurred
image with me which i have successfuly deblurred it using matleb. now
my aim is to segment the image obt... image segmentation [2 Articles]
moon moon - Jan 29 2006
Hello everyone,
Am a beginer with matlab so i do need your help to get
started,
I have a 64x64 image in gray scale, i already
extracted the histogram (nbr of pixels, i... Axes
Justice - Nov 11 2005
Hello,
I want to display an image on axes (Axes1) and use ginput command to get the coordinates from the image from only the image,.... but when I run ginput it is ac... gradient of an image [2 Articles]
ceg9901 - Jan 28 2005
Hi,
How to find horizontal and vertical gradidnet of an image.is there
any command derivation of an image?.
... Q on image processing......
eagle_fox_2000 - Oct 17 2003
Hi ...
i am working on an image processing stuff....and i am confused on how
excatly can i get an impluse response of a particular area of
interest in the i... please help me..with save code [2 Articles]
enas...@gmail.com - May 14 2007
hi all
in my image processing application..
i have two axes
axes1 for original image..
axes2 for filtered image..
i have a number of filters which change the original and ... FFT and IFFT
eddylamhk - Oct 28 2003
Hi,
I want to ask if I FFT an image, how can I recover the image using
IFFT. I try to use it directly, but turn out some a totally bright
picture. However, when i... problem with imwrite
rukmanimohan04 - Mar 23 2005
hi,
I am presently workin on datamarking of images using DCT. I have
created the datamark first by splitting the image into 8*8 blocks and
then appl... image processing
Nidur SINGH - Apr 28 2005
hi all.
I have one question for people who are working in Image processing area.Is there facilty available in matlab to segment the 3D image toget the section views like MRI s... getting a picture in C [2 Articles]
suganya boopathy - Aug 2 2003
Hai,
i am engaged in an image encoding project. could anyone of you help me on the
following?
1. how to acquire an image file in C language and a motion pic... image rectification help
tizianapace - Apr 17 2004
Hi all
I am in urgent need of matlab code to perform image rectification
(for computer vision).
If you know of some sources where I can get some code or if you wa... Image Segmentation by Quadtree Decomposition
albakrif - Jan 1 2006
Dear all
I'm working on image analysis using quadtree decomp, but I don't know
how I can reconstruct the image after applying the command
S = qtdecomp(I,threshold,[... Getting only red pixels out from an image?
icearie55 - Jun 5 2005
Hi all,
let's say i got an image after the rgb2hsv conversion.
So, using hue as angle definition after normalised as 1,v and s as 1
how should i go about coding ,... Particle analysis [2 Articles]
sandhya nageswaren - May 27 2008
Hi all,
I am a newbie in MATLAB. I am trying to do particle analysis on an image in MATLAB.I work with nanocrystals of varying sizes and contrast. Basically what I am trying t... code for grey level co-occurrence matrix(GLCM)
raghav_bme - May 21 2006
hai friends,
i need matlab code for getting GLCM of an image and also calculate the
different features from it like entropy, inertia, homogenity etc.,
by using this i want... camera calibration !
Mahmood Zeydabadi - Aug 7 2005
Dear all,
To do a task I need to compute some line's slopes in an acquired image.
the problem is that these slopes must be computed in an image with
ideal intrinsic param... Dividing an Image into smaller equal parts
knenny2000 - Feb 27 2006
Hi all,
I am trying to divide a 250x250 image into 25 equal parts each having
50x50 pixels. To divide the image into small parts is not difficult,
however when the number of ... Entropy of image [2 Articles]
Prateek Shrivastava - Jun 18 2003
Hi all,
In the calculation of the entropy of an image,
ENTROPY = - SIGMA(p log p )
j j 2 j
how can we define the parameter 'probability' for an image?
R... mrf based segmentation
sonali mehra - Jun 8 2006
hi all,
i am working on image compression, i have encountered a problem while implementing mrf for image segmentation.
Could anyone of u help me by suggesting any link or cod... Fit image on pushbutton
sjoh...@condor.cnbc.cmu.edu - Sep 19 2006
Hi,
I am using CData property of pushbutton to insert image on a button
control. Is there anyway to stretch or shrink the image to fit the
pushbutton dimensions? In my applicat... Drawing lines in output image [2 Articles]
MOINUL ISLAM - Jun 14 2006
Hi,
I have a problem with drawing line between two cordinates in an output image file. I want to display a line in an image generated by imshow().
Can anybody give me th... How to use griddata to reconstruct image?
anub...@gmail.com - Jul 24 2007
I have a randomly sampled grayscale image. How do I reconstruct the image using the griddata function in matlab? i've gone through the help file but cant understand how to get the ... viewing a file as an image..??... [4 Articles]
Khubaib - Dec 11 2002
Dear members..i am an electrical engg.. And doing an image processing
project. The problem is that
i want to view a Y pixels file (.Y file) as an image. So, that a ... importing and displaying .jpg images in matlab
markarlillyoar - Mar 24 2004
I am trying to import and display .jpg color image in matlab. I am
using the imread and image/imagesc functions in matlab, however when
matlab displays my images it... Prob in Image Processing
Moniba Shams - May 12 2006
Dear All
I ve a prob with a grey level image in double.
When I apply some functions on the image for example
IMVIEW and IMSHOW, the display contains three images
instead of... image filter
kianogo - Jun 12 2004
Anyone can help with designing exponentially increasing or decreasing
image filter?
the filtered image looks right but the amplitudes are wrong !!
s=10.*ran... Color Images [4 Articles]
aditya - Oct 31 2003
Hi All,
I was trying to isolate the RGB components from a
given image.I wrote the following code and i am
getting the red and blue components but for the green
... Color Identification using imhist [2 Articles]
Imran Akthar - Jul 3 2003
Hi all,
I am trying to get the maximum occourence of a particular color in an
image using imhist command in an image .I first converted the RGB image to
indexe... Using kmeans for an image - urgent help needed
sure...@gmail.com - Sep 28 2007
hi,
I am a beginner to Matlab. need help in using kmeans in matlab.
I have an image. lets take Lena.jpg
img=imread('Lena.jpg');
[h s v]=rgb2hsv(img); //here i get h=Hue, s... Image registration fucntions
- Oct 24 2001
Hi,
I have Image processing toolbox version 2.2. Some new functions
have been introduced in version 3.0 relating to Image registration. is
there anyway, I can use... image processing
- Sep 13 2001
hello,
i've a little problem!!
i would like to extract from an image with some objects, the center
of inertia of each object...
i don't have the image processin... image processing
vijetha_moolya - Jan 24 2007
Hi friends,
Can anybody tell me how to construct the pairwise similarity
graph for image segmentation using matlab.
... reading a 32 bit geotiff image [2 Articles]
avinash_uv - Jul 30 2007
I am using Matlab 7 (R14) service pack 1.
The imread function can not take a 32 bit geotiff image. Is there a
way to read out the image data from this file.
Is there a stan... Texture Mapping onto the Mesh
Frederick - Mar 9 2006
Hi,
Given an image and a mesh, how do I map the image on to the mesh by
matlab assumed that the texture mapping is known?
The things are known:
the 3D points
the tri... subplot images with different palettes !!! [2 Articles]
Khaled Z - Feb 12 2002
Hi every body;
I have a very simple question. I need to plot several images in the same
figure. I use subplot then imagesc for each image. when I use colormap after... Hi
bakoguz - Dec 7 2001
I have a problem of for loops.
I saw the messages about them but it did not help me.
I want to filter my matrix(actually an image) by a filter
and I want to conv...