The development work was started with the short fiber fraction due to the good earlier results in the characterization the fines. The next figure shows the tensile index of test sheets made from the corresponding fractions as function of the fibril content calcu-lated from the images obtained from the same fraction. Tensile index of test sheet made form short fiber fraction as function of fibril content calculated from images. In the next figure the tensile indexes of the test sheet made from the whole pulp are depicted against the fibril content measured from the images of short fiber fraction of the same pulp. The figure shows that within same pulp type the tensile index of can be predicted from images.
Next figure shows modification index distributions calculated for four long fiber fractions.
The figure shows that image processing can detect the effect of the treatment applied to fibers. The inter-pretation of these distributions is going on. This automatically means a decrease in the energy consumption, savings in the raw materials and a decrease in the effluent discharge from the paper mill.