Professional Interests: Image Processing
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I have done PCA for 21 images of the same person in different conditions. LAst step of the PCA is projection of original data : ...
1 year ago
I have created an imagearray consisting of 434 images, then extracted features from this imagearray using a function, now i want...
Asked 1 year ago
Nirmala , try the following , its a very simple and efficient code to convert grayscale images to RGB using a specified colormap...
Answered 2 years ago
Can PCA be applied directly on an image, in contrast to a matrix(in which rows correspond to observations & columns to variables...
I need to extract and select features from a face image. I have extracted the basic Texture , Color and Shape features using the...
Asked 2 years ago
I have data in CSV (comma seperated value) format, i need it in the libsvm format. I found a c code to do it:
For certain measurements i need to obtain only the numeric value of the first principal component from the matrix. Can someone p...
I have calculated texture, color and shape features on an image.But those just add up to 12 features. I read that people extract...
I have used the following standard code for PCA.
%function [signals,PC,V] = pca1(data)
% PCA1: Perform PCA usi...
I have computed PCA using the following :
function [signals,V] = pca2(data)
[M,N] = size(data);
data = re...
I extracted the principal components of training and testing data.
'trainingdata.train' has feature values from both +1(face 1)...
Is this the right way?
Answered 1 year ago
Walter, it works fine for a single image but when i try the same on array of images i get the error :
"Array dimensions must...
Reading up about matrix indexing will be helpful in your case.
Try the link below:
I don't understand what purpose setting all the pixel values to zero would achieve.
Nevertheless One of the method is:
Could anyone help, please?
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