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Discussion Groups | Image Signal Processing
Technical Discussions related to Image Processing (image coding, compression, digital effects, mpeg, etc)
level sets segmentation problem [3 Attachments]
Esmeralda Ruiz Pujadas - Sep 29 2011
Hi I am new in this forum so first I would like first to introduce me. I am
in my first
year of my phD and I have a lot to learn yet.
My project is related to segment the
myo... ![level sets segmentation problem [3 Attachments]](http://cdn.dsprelated.com/images/icon_more.jpg){kind=icon}
hand extraction using frame difference method in MFC VS 2010 + OpenCV
RABIA - Aug 30 2011
Frame Difference in gray scale
1. I applied cvMean on original gray scale image and set as thresold
So, result: http://imm.io/8x9p
2. then i get cvMean from the cvAbsDif... Mapping between image pixel and spherical surface
APOSTOLOS PAPAZOGLOU - Aug 30 2011
Hi there,
my name is Apostolos and I am quite new with computer vision and image
processing...
My question sounds simple but so far I have not found the right answer. I ... FFT 2D Convolution - Question
marc...@gmail.com - Aug 30 2011
Hello, I have a question, If I'm doing the FFT Convolution the right way because I don't get the wanted results. ( I am using the kissFTT library for c )
I load an image from a ... Re: face detection and recognition algorithm for video surveillance [2 Articles]
vina...@gmail.com - Jun 3 2011
Hi,
For the algorithms part, you can try using the eigen face decomposition method.
i am trying to build a face detection and recognition algorithm for
> video surveillance i... Function of filtering
M - Apr 26 2011
//HELLO,
I am working on a project in ' Despeckling of medical ultrasound images ',=
which i need to compare my porposed filter with other filters like Gamma, =
GenLik method,... Object recognition: Haar-like features
got2getcrackin - Apr 19 2011
Hi all
I am doing a project on object recognition using live video stream from a webcam and have come across the haar-like feature/adaboost algorithm.
I am slightly confused... Removing Perspective distortion
fubu...@gmail.com - Apr 13 2011
Hello,
I am working on a project in which i need to create a panorama by taking images from a PTZ camera.
The problem I am facing is when I capture two images at different angl... color pattern isolation
Md Yasser - Mar 31 2011
Hi,
I am trying to develop a vision system for my robot so that it can navigate itself. I am quite new to MATLAB and know only basic IP. I am having trouble isolating color patter... Highest frame capturing rate...
raoc...@rediffmail.com - Mar 9 2011
Is it possible to sample at TetraHz frequency?
What is the highest Camera capture rate?
... Image Processing spectral frequency..... [3 Articles]
raoc...@rediffmail.com - Feb 27 2011
I wanted to know if there are any commands for getting image pixel - spectral response in MATLAB.
An RGB image has 3 bands. I can decompose the image into 3 images corresponding t... Connect camera? [2 Articles]
mehrnazf - Feb 27 2011
Hi
I'm wondering how can I use matlab to get online frames from a vidio camera that is connected to the computer.?
is there any especial hardware for connecting the camera to th... Real time Image Processing [2 Articles]
trombokinase356 - Feb 11 2011
Hello there,
I am very new to real time processing but very experienced with image processing algorithms. I was just wondering what it takes to get my hands on? What devices and... Fourier Descriptors and Moments
Manisha K - Feb 11 2011
How to extract features of a character using Fourier Descriptors and Moments, Which type of moments are suitable? pls. help
... validation tools for calculations
chri...@hotmail.com - Dec 30 2010
Hello all,
Am working on Segmenation of Cardiac MRI (magnetic resonance imaging ) Images
and am validating the calculations manually through comparing the results of my calc... SPCA and face recognition can some body help....thanks [2 Articles]
f4td4n - Oct 6 2010
Hi Guys,
I am trying to implement a modification proposed by D Zang et all in a paper "A New Face Recognition Method based on SVD Perturbation for Single example image per perso... Entropy of an Image in MATLAB [2 Articles]
jugs...@gmail.com - Jul 28 2010
Hello,
I have just taken up a project on Medical Image data compression and as a start i wanted to find entropy of an image in MATLAB...I have calculated dimensions of the image... Raster and vector data structures
ebrahim - Jul 21 2010
Hello.
Can somebody help me?
I need to know about raster and vector data structures and especially
their application in digital image processing.
Can anybody give me some ref... frequency features in pattern recognitin problem [2 Articles]
Mahua Nandy - Jul 8 2010
Can anybody help me in understanding clearly how frequency related features are extracted from an image which are later used for pattern recognition?
... 2d fft & 2d ifft non square matrix??
s002...@yahoo.com - Jul 8 2010
does anyone know how to do a non square matrix of 2d fft and its inverse using fft core that doesn't have the same pts as the matrix.
for example for a 1024x812 matrix, using 1d... how to classify the image feature extraction methods
moh_...@yahoo.com - Jul 8 2010
hi to all of the researcher and who love researching
I'm trying to classify all of the image extraction method's in one big tree.
how we can put the following features extraction... Normalized cross correlation using FFT
gupt...@gmail.com - Jul 5 2010
hi all,
I am trying to match a subimage of 64 X 64 pixels inside a 512 X 512 image.
I have succeeded using the spatial domain NCC.
I want to use the Frequency domain tran... PSNR [2 Articles]
abdul_wasey2 - Jun 21 2010
Hi,
I have two square matrices of different sizes. One is half the size of the other. I got this from db1 wavelet decomposition. Now I want to compute PSNR (peak signal...) betwee... saving an image from axes
kalh...@gmail.com - May 29 2010
hi group,
i wanted to save the result of an image process loaded in axes component at hard drive using GUIDE.
is it possible?
thanks,
shilan
... image object shape feature extraction
"Biplab Banerjee.....always be khush....." - Apr 27 2010
dear all,
i am working with image object classification...i.e. i am segmenting the
image 1st..then after extracting the objects, i want to classify the object
using svm.....fo... Object Classification
"neel............................." - Apr 26 2010
What can I choose as the shape feature for object classification using multiclass SVM?
Please reply.
Thanks in advance.
... Image quality measure without having the original image? [5 Articles]
sami...@yahoo.com - Apr 22 2010
Hello everybody,
I need a resource or information on how to measure the quality of a reconstructed image without having the original image.
Here is the set up(wireless multim... stain thresholding
mehr...@yahoo.com - Apr 11 2010
Hi everybody
I'm new at denoising with thresholding.I have a noisy image and i want to denoise it with soft threshold,hard threshold and stain's threshold.i saw hard and soft in m... Iris recognition
swet...@gmail.com - Apr 11 2010
Hello all,
I am implementing the paper "New methods in Iris Recognition" by John Daugman.He talks about radial gradient edge data.How do i calculate the radial edge data?
-... Compressed domain motion detection
ambi...@yahoo.co.in - Mar 24 2010
Hi all,
I want to detect motion in compressed video namely H264.I am using JM reference decoder for doing motion detection.Can anyone tell me how to get required information from ... Discrete Hartley Transform
Faezeh - Mar 24 2010
Hi all;
I want to know what is the difference between the Finite Difference derivatives and Discrete Hartley Transform derivatives. Should the results be the same?
Thank you
Fa... Size of macroblock in MPEG
ambi...@yahoo.co.in - Mar 15 2010
Hi all,
I have a doubt regarding the size of macro block in compressed video namely MPEG-4. Will the size of macro block vary within the compressed domain.In a paper,I have read t... Internal Structure of an MPEG Frame [2 Articles]
ambi...@yahoo.co.in - Mar 10 2010
Hi,
I want to know the internal structure of an MPEG frame.I am doing my project on "motion detection in the compressed domain".So my first step of the project is to parse the MPE... Test images for iamge rectification
Emilio_Díaz - Feb 22 2010
Hi all
I'm working on an application that rectifies images by means of the direct linear transform (dlt).
Right now, my application works with some of my images, but in other... Difference between density estimation and edge detection
tony...@gmail.com - Feb 10 2010
Hello
what is the difference between density estimation and edge detection in an image.what is the significance of density estimation in an image
... 3D Modeling Techniques or Methods
zarrar javaid - Feb 10 2010
Hi,
Can anybody suggest some 3D Modeling Techniques or Methods? I know finite element model is one of them, can anybody suggest some other techniques?
Thanks in advance.
Che... Text Detection - Stroke Filter
svlada19 - Jan 23 2010
Hello,
I am new into Image Processing, and I have started simple project for recognizing text on images with complex background. I want to use stroke filter as first step, but ... Re: dividing the image pixels into different color bins
BRIJESH JAJAL - Jan 21 2010
Dear, if you have matlab, it has following code that seperates 3 color values:
i=imread('sample.bmp','bmp'); % Save Bitmap 24 bit format in Array I
'Loop the value of a starting ... dividing the image pixels into different color bins...
"neel............................." - Jan 20 2010
hi all....
i have a color image...and i want to classify the image pixels into different color bins....example......different shades of a given color should be there in the bin fo... How to detection similarity of two Image [9 Articles]
mohammad - Jan 12 2010
dear all members
I am trying to find rate of difference or rate of similarity of two
Images.
anyone can give me any Idea ?
for example :
if we have 2 Image : im1.jpg and im2.j...