How can I remove the scribbling noise between the machine printed texts

15 September 2015 1 10K Report

Please suggest any good approach for removing the noise without affecting the text details.

Hi,

you can apply either Median Filter (http://de.mathworks.com/help/images/ref/medfilt2.html) or an Anisotropic Diffusion Filter (http://www.mathworks.com/matlabcentral/fileexchange/14995-anisotropic-diffusion--perona---malik-/content/anisodiff_Perona-Malik/anisodiff2D.m), which preserves the edges.

Additionally, if you want a text without holes try some morphological operations like opening

http://de.mathworks.com/help/images/morphology-fundamentals-dilation-and-erosion.html

Best!

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