All kinds of image processing approaches.

• Regan Dhaksnamurthy

  Nonlinear PCA

  PCA is extended to feature space by nonlinearity function for feature study like image denoising applications. Why do we need nonlinear PCA?

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  • 
    Regan Dhaksnamurthy replied

    thanks for your valuable comment.Actually my idea is image denoising using Non linear PCA. i intend to apply different nonlinear functions.Then compare them in performance wise.But my basic break isthanks for your valuable comment.Actually my idea is image denoising using Non linear PCA. i intend to apply different nonlinear functions.Then compare them in performance wise.But my basic break is why we need nonlinear PCA. How it outperforms linear PCA?. i'll refer above said links,works for clarification..

    9 hours ago
• Kazi Mostafa

  I need help about Fuzzy Morphological operator in image using Matlab?

  I need guide on applying fuzzy mathematical morphology on images. Fuzzy Mathematical Morphology use concepts of fuzzy set theory. I am trying to explore Fuzzy MM approach in image processing. TheI need guide on applying fuzzy mathematical morphology on images. Fuzzy Mathematical Morphology use concepts of fuzzy set theory. I am trying to explore Fuzzy MM approach in image processing. The values of a fuzzy set should be interpreted as degrees of membership and not as pixel values. Fuzzy image processing has three main stages: Image fuzzification, modification of membership values, and image defuzzification. The fuzzification and defuzzification steps are due to the fact that we do not possess fuzzy hardware. Therefore, the coding of image data (fuzzification) and decoding of the results (defuzzification) are steps that make possible to process images with fuzzy techniques. After the image data are transformed from gray-level plane to the membership plane (fuzzification), and then I want to apply dilation and erosion. The Definition [De Baets, 1997] of fuzzy dilation and fuzzy erosion of A by B (Structuring Element)are the gray-scale images can be found in (page 6) http://dmi.uib.es/~ugiv/papers/ipmu2004poster.pdf I am trying to do Fuzzy MM dilation and erosion in gray scale images by using Matlab image processing toolbox. But confused how to do it? I want to apply [De Baets, 1997] definition in gray scale image. Can you please make it more clear the idea for me? Thanks for your time and cooperation.

  http://dmi.uib.es/~ugiv/papers/ipmu2004poster.pdf

  Recent replies ⋅ Show All (9)

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    Kazi Mostafa replied

    Dear Dr. Hidalgo, Thank you so much for all your help. I write an email to him. Thank you for your time and consideration. Best Regards, Kazi Mostafa

    1 day ago
• Govindarajan Jagannathan

  Can one use Fuzzy logic for Image Fusion to generate better meta information generation?

  Image Fusion and Signal Fusion mixes different images/signals to generate new information which is not present in the individual image/signal. Generally binary logic is applied while the FusionImage Fusion and Signal Fusion mixes different images/signals to generate new information which is not present in the individual image/signal. Generally binary logic is applied while the Fusion Process takes place. Why not use Fuzzy logic to generate the Fusion process is the question. What will be the advantages of such methods?

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    Govindarajan Jagannathan replied

    Thank you, Vilem, I will google it as well as contact Prof. Perfilieva soon.

    3 days ago
• Puja Bharti

  Comparison between curvelet and wavelets

  What are the advantages in case of medical imaging and how are they different?

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    Puja Bharti replied

    Thank you Abdessamad Sir and April mam.

    5 days ago
• Abhishek Tiwari

  Can anyone recommend an elastography images repository?

  Elastography images are color images taken with ultrasound images of tissues for the detection of cancer, by observing the stress patterns of the tissue.

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  • 
    Abhishek Tiwari replied

    Could you share them with me with dropbox or any other service?

    5 days ago
• Subhash Degala

  Fast Fourier Transformation

  I want to impliment FFT for the satellite Images using C++ can any body give sujjestions...

  Recent replies ⋅ Show All (3)

  • 
    Rob San replied

    Try CImg, it has a FFT function. What do you want to do ?

    6 days ago
• April Khademi

  What are the best journals for magnetic resonance image processing methods and applications (i.e. segmentation, classification, analysis)?

  MR Image Processing Journals

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  • 
    Smitha Sunil Kumaran Nair replied

    IEEE Transactions on Medical imaging, Computerized Medical Imaging & Graphics (Elsevier), Journal of Magnetic Resonance Imaging, Magnetic Resonance Imaging

    6 days ago
• Deepu Sadf

  Can anyone tell me how to subsample an image using matlab?

  Thanks

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  • 
    Frank de Morsier replied

    be careful to aliasing effect. You can use the imresize function that will apply a low pass filter before subsampling in order to avoid such effect: imresize(image,1/n); % or for 1Dbe careful to aliasing effect. You can use the imresize function that will apply a low pass filter before subsampling in order to avoid such effect: imresize(image,1/n); % or for 1D signals decimate(signal,n);

    6 days ago
• Thalisson Nobre Santos

  What is the best hand tracking method in depth image?

  I'm looking for the best hand tacking method in depth image.
• Regan Dhaksnamurthy

  Is laplacian pyramid a better technique than wavelet transforms?

  Suppose I use laplacian pyramid for image denoising application, how would it be better than wavelets? I have read some documents related to laplacian tools in which laplacian pyramids are said toSuppose I use laplacian pyramid for image denoising application, how would it be better than wavelets? I have read some documents related to laplacian tools in which laplacian pyramids are said to have better selection for signal decomposition than wavelets.

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  • 
    Regan Dhaksnamurthy replied

    Thanks 4 ur reply..

    Mar 31, 2012
• Neelambikai Umapathi

  Can any one tell me the research issues in Medical Image Processing?

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  • 
    Neelambikai Umapathi replied

    Thanks for your reply.But how it is related to my topic? I am not getting it...I am a budding researcher scholar...

    Mar 16, 2012
• Nidhi Divecha

  Hi, i want matlab code for dct block based watermarking and also dwt watermarking

  I want help on digital watermarking

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    Nidhi Divecha replied

    Hello sir, if i extract watermark using w=(S-Si)/a where S = singular value of original image , Si=singular value of watermark image and a=gain factor then it is blind tech or nonblind?

    Jan 30, 2012
• Navid Razmjooy

  Data acquisition in matlab

  Dear all, can anybody help me how can i do image programming matlab practical and do i need some special hardware or not (i mean data acquisition) ?

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  • 
    Navid Razmjooy replied

    Thanks pai

    Jan 20, 2012
• Krishnan Muthukumar

  image segmentation

  hi, i want to segment an image. i am using matlab. i ve used qtdecomp(image) to obtai the quad tree model for the image but it's throwing an error. pls help me. i ve taken a proj besed om imagehi, i want to segment an image. i am using matlab. i ve used qtdecomp(image) to obtai the quad tree model for the image but it's throwing an error. pls help me. i ve taken a proj besed om image segmentation

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  • 
    Vinay Pai replied

    What is the error that it is throwing? What message do you get?

    Jan 20, 2012
• Ebrahim Aghajari

  Dear Researcher; I am trying to develop an algorithm for image processing based on neuro-fuzzy approach.Do you have any ideas or the best way of approach to that?

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  • 
    Vinay Pai replied

    Pardon the pun, but your question is very fuzzy. Why are you trying to develop the algorithm (i.e. what application are you trying to address)? And why do you think the neuro-fuzzy way is the wayPardon the pun, but your question is very fuzzy. Why are you trying to develop the algorithm (i.e. what application are you trying to address)? And why do you think the neuro-fuzzy way is the way to go? NOTE: This statement was prepared or accomplished by Vinay Pai in his personal capacity. The opinions expressed in this article are the author's own and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, or the United States government.

    Jan 20, 2012