This function computes the LP guided modes of a step-index optical fiber using Matlab s "fzero" function available in the Matlab s Symbolic Toolbox. The "fzero" function uses Brent s method to find the root of a continuous function of one variable gi

If we know some properties of the image, than thresholding process only needs to ensure this property is satisfied. In a printed text image, if we know the ratio of area between the sheet and character, then we can choose satisfied threshold value