Signal improvement in image sequence acquired by digital color video camera involves continuous intensity and color signal component modification using detected offset and gain values

摘要

The method involves continuous evaluation of the intensity signal component to determine intensity maxima and minima, continuous determination of offset values, continuous determination of amplification values, continuous modification of the intensity signal component and the color signal component using the detected offset and amplification values. The method involves continuous evaluation of the intensity signal component (3) to determine maximum and minimum intensity values, continuous determination of offset values, continuous determination of amplification values on the basis of differences between maximum and minimum values, continuous modification of the intensity signal component by subtraction of the last determined offset value and multiplication by the last determined amplification value and continuous modification of the color signal component (4) by multiplication by the last determined amplification value and a defined weighting factor.