MATLAB: Help removing unwanted lines from image and identify spots

identify circleimage processing

After some enhancement I get the following image: http://i44.tinypic.com/2jfwsnd.jpg I want to identify the spots which clearly has a circle like shape, but the lines make it hard. any suggestions?

Best Answer

Threshold to create a binary object
bwareaopen() to get rid of small stuff
imopen to get rid of lines;

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MATLAB: If there a synatix that selects and cuts a line of a image in matlab

What do you mean by "cut"? You mean remove that line, as in

grayImage(row, :) = []; % Remove this row from the image, shrinking the image vertically.

Or do you mean something like improfile(), which gets you the intensity profile along a line between two points?

MATLAB: How to detect all the pixel intensity values in a grayscale image and store them

You can call impixelinfo() to let you see the gray levels as you mouse around over the image.

To get the gray level of the image at a particular location, just index it:

grayLevel = grayImage(row, column);      % For a gray scale image.
rgbValues = rgbImage(row, column, :);    % For a color image or gray scale image.

or you could use impixel()

pixelValue = impixel(yourImage); % where your image can be gray scale or color.

Also I'm attaching a script that converts an image into a CSV file where each column is [x, y, grayLevel] or [x, y, r, g, b]

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Related Solutions

MATLAB: If there a synatix that selects and cuts a line of a image in matlab

MATLAB: How to detect all the pixel intensity values in a grayscale image and store them

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