Anyone know the code for GRID BASED SAMPLING

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ANCY
ANCY on 27 Dec 2013
Commented: Image Analyst on 29 Dec 2013
If a full image is given.Then how can i find the image patches based on color.I read in a paper that grid based sampling is used for finding the patches in a an image based on color.Please share with me the code for subsampling of the image based on color.one knows the code for grid based sampling of images.Then please share it.

Answers (1)

Image Analyst
Image Analyst on 27 Dec 2013
You mean like subsampling the image with points on a grid
stepX = 2; % Every other column pixel.
stepY = 3; % Every third row pixel.
subsampledImage = grayImage(1:stepY:end, 1:stepX:end);
??? Otherwise specify what you do mean.
  2 Comments
ANCY
ANCY on 29 Dec 2013
If a full image is given.Then how can i find the image patches based on color.I read in a paper that grid based sampling is used for finding the patches in a an image based on color.Please share with me the code for subsampling of the image based on color.
Image Analyst
Image Analyst on 29 Dec 2013
I don't know what that is. You'd best follow the instructions in the paper. I do have some color segmentation demos in my File Exchange if you want to try standard thresholding approaches. http://www.mathworks.com/matlabcentral/fileexchange/?term=authorid%3A31862

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