This group is for researchers who want to collaborate and share ideas about their work.

• Gargi Phadke

  Which parameter is used to identify illumination from image?

  I want to compare two images with respective illumination , I want any stastical parameter ,so it will show the illumination presence in image

  Recent replies ⋅ Show All (5)

  • 
    Osama Y. Al-Rawi replied

    you can use MATLAB, you have many special functions deal with image processing problem

    6 hours ago
• Muthukumar Subramanyam

  I want to test various kinds of shadow images (simple, complex, soft and hard shadows) . Can you help with a data set (s) ?

  Shadow removal image enhancement

  Recent replies ⋅ Show All (1)

  • 
    Osama Y. Al-Rawi replied

    You can do it, or you can download it from the internet (youtube)

    6 hours ago
• Ravi Chaurasia

  Which language is the best for image and video processing?

  Tell me about resources and some good books to learn these things.

  Recent replies ⋅ Show All (24)

  • 
    Osama Y. Al-Rawi replied

    you can use MATLAB, you have many special functions for image and a bit for video processing, also you can use SIMULINK and toolboxes.

    6 hours ago
• ke Belial

  Find a paper "Vision: A computational investigation into the human representation and processing of visual information" ??

  are there someone who can mail me? my E-mail:2010belial@gmail.comzunhai , I will appriciate very much

  Recent replies ⋅ Show All (2)

  • 
    Louis Brassard replied

    J.J. Gibson has written a number of books: The perception of the visual world (1950), The ecological approach to visual perception (1979). What is interesting in Gibson's approach is that hisJ.J. Gibson has written a number of books: The perception of the visual world (1950), The ecological approach to visual perception (1979). What is interesting in Gibson's approach is that his focus is not on what is going on in the brain but the focus is on the visual information to be perceived. For Gibson, vision perception is not about representation but about detection of the invariants of the dynamic optical array. David Marr has written an excellent book on vision but his approach is about trying to infer a three dimensional world from the 2D image information. Like Gibson, I do not think that the vision process tries to reverse the imaging process.

    5 days ago
• Alex Jameson

  Does MATLAB have a function to convert 24bit RGB to 24-bit greyscale?

  To use achromatic approaches to an RGB image.

  mixed8.bmp

  Recent replies ⋅ Show All (9)

  • 
    Rajiv Kumar replied

    Try rgb2gray function of matlab

    6 days ago
• Ashfaque Ali

  Open source simulation tools to test scheduling in RTOS

  I am trying to use Space Filling Curves for task scheduling in RTOS. I need a free or open source simulation tool to test the algorithm. Can anyone advise me?

  Recent replies ⋅ Show All (3)

  • 
    Ashfaque Ali replied

    Thanks a lot.VxWorks is an RTOS itself.My algorithms are generalised.But still it will help.I'll try and write you back.

    13 days ago
• Sihem Sih

  Shannon sampling theorem

  If fc is used to denote the actual system characteristic frequency, the upper bound 2 fc < fsampling is constrained to meet the requirement of the Shannon sampling theorem (Pandit and Wu, 1983), andIf fc is used to denote the actual system characteristic frequency, the upper bound 2 fc < fsampling is constrained to meet the requirement of the Shannon sampling theorem (Pandit and Wu, 1983), and the lower bound fc > 0.05 fsampling is set to consider the minimal frequency of a dynamic system’s behavior (at least 10% of the upper bound). I want to undrestand, why we use 10% of upper bound to construct the lower bound? And what is the requirement of Shannon ?
• Lydia Mettilda

  I am currently doing working on an image accessibility scheme for colorblind viewers. How do affected people differentiate colors?

  Can anybody advise me on symptoms of colorblindess?

  Recent replies ⋅ Show All (10)

  • 
    Eliana Pantaleão replied

    I suggest you read this paper: An Evaluation of Color Selections to Accommodate Map Users with Color-Vision Impairments http://onlinelibrary.wiley.com/doi/10.1111/0004-5608.00043/pdf and otherI suggest you read this paper: An Evaluation of Color Selections to Accommodate Map Users with Color-Vision Impairments http://onlinelibrary.wiley.com/doi/10.1111/0004-5608.00043/pdf and other research work from Cynthia A. Brewer, about color schemes for map visualization.

    24 days ago

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  Recent replies ⋅ Show All (5)

  • 
    Michael Sandholzer replied

    Although a transformation from a binary image (2-bit) to a full RGB does not really make sense, you could easily import the binary image in ImageJ, select Image-->Type-->RGB Color and save it in anyAlthough a transformation from a binary image (2-bit) to a full RGB does not really make sense, you could easily import the binary image in ImageJ, select Image-->Type-->RGB Color and save it in any format you might need. Why do you want to do that anyway?

    29 days ago
• Yeong Tsann Phua

  SIFT - scale invariant feature transform in Matlab

  I am currently working on SIFT for object recognition using matlab. Currently I had completed the code for gaussian pyramid and difference of gaussian. Now, I am stucked with generating the keyI am currently working on SIFT for object recognition using matlab. Currently I had completed the code for gaussian pyramid and difference of gaussian. Now, I am stucked with generating the key point. Can anyone advise?

  Recent replies ⋅ Show All (8)

  • 
    Yeong Tsann Phua replied

    Currently I had generated the DoG and generated the extrema image layers. Can anyone explain to me how to use Hessian matrix to elimate the low contrast keypoint?

    Apr 22, 2012
• Sarfraz Qureshi

  How to analyse mp3 files using MATLAB?

  I want to observe the spectrum of the audio signal (mp3) using MATLAB. What are the other ways of analysing an audio signal using MATLAB.

  Recent replies ⋅ Show All (6)

  • 
    Søren Hartmann Kristensen replied

    This toolbox will let you read from and write to mp3 files. http://www.mathworks.com/matlabcentral/fileexchange/6152-MP3WRITE%20and%20MP3READ I havn't tried it my self, but from the reviews it looksThis toolbox will let you read from and write to mp3 files. http://www.mathworks.com/matlabcentral/fileexchange/6152-MP3WRITE%20and%20MP3READ I havn't tried it my self, but from the reviews it looks like it works. (matlabcentral is a great place to look for usefull scripts) From there its just FFT, specgram and the other analysis functions...

    Apr 18, 2012
• Theresa Cenate

  Splitting of Image into Signals

  Somebody please suggest me how to get the A-Scan Signals from the B-Scan Image.

  Recent replies ⋅ Show All (2)

  • 
    Theresa Cenate replied

    Thanks Mr.Tim It is working well regards

    Apr 16, 2012
• AdityaPandu Wicaksoono

  How to make Augmented Reality to translate language in Android ?

  I want to make video translator with Augmented Reality,... But I don't have idea and source about it,.. Help me, please,..

  Recent replies ⋅ Show All (9)

  • 
    Rehan Adil replied

    Workshop on Digital Image Watermarking

    Mar 29, 2012
• Anik Kumar Samanta

  DSP C/C++ libraries

  Need some suggestions regarding tested standard libraries for DSP in C/C++.

  Recent replies ⋅ Show All (1)

  • 
    Abdessamad Mouzoune replied

    What do you think about SPUC: http://spuc.sourceforge.net/ ?

    Apr 10, 2012
• Chethankumar BM

  Can any one help me to get a videos of INDIAN sign language?

  Videos contains signs of hearing disabled people particularly on Indian signs.