The work presents basic algorithms related to the area of digital image pre-
processing: transformation of the grey scale levels, spatial filtering, image smoothing
and edge detection. In order to demonstrate the effects of the image processing
algorithms, we developed web pages based on HTML and JavaScript. The JavaScript
program implements digital image processing operations on the already prepared
images and we describe the process of adding any new image. The program allows
setting the coefficients of the basic transformations, such as logarithm and power-law
transformation. In case of spatial transformations, masks can be changed according
to the desired image processing effect. The output data can be exported and used for
simulation of digital circuits.
Finally, we present the digital circuit design process for the Gaussian filter
algorithm.
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