MATLAB: Finding pixel location

arraybinarycoordinate systemimage processingImage Processing ToolboxMATLABpixelpixels

In my binary image line segments are displayed in white. I want to find all the locations (pixel coordinates )which contain pixel value 1 (white)? how can i get those pixel coordinates as an array. Please help me

Best Answer

k = rand(10) > .4
STATS = regionprops(k, 'PixelList','PixelIdxList')

Related Solutions

MATLAB: How to calculate the white area pixels amount

Try this:

numWhitePixels = nnz(binaryImage);

Other ways

numWhitePixels = sum(binaryImage(:));
whiteArea = bwarea(binaryImage);

MATLAB: Getting the coordinates of green colored portion.

So you have a binary image, because you say you've already extracted locations of the green pixels. So simply label and call regionprops if you want the centroid

labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, 'Centroid');

or if you want the x,y coordinates of each pixel, on a blob-by-blob basis, do this:

labeledImage = bwlabel(binaryImage);
measurements = regionprops(labeledImage, 'PixelList');

If you don't want coordinates on a blob-by-blob basis and just want everything all in one giant list, you can use find():

[rows, columns] = find(binaryImage);

Best Answer

Related Solutions

MATLAB: How to calculate the white area pixels amount

MATLAB: Getting the coordinates of green colored portion.

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