O.S. Astratov, S.A. Kuzmin, V.N. Filatov

Digital processing of color and halftone images using modified Hough transform is recommended for stacked timber ends measurement. Hough transform requires multiple preprocessing stages, such as edge detection, thresholding, noise reduction by morphological operations and decimation. All of them are described in this work. Reliability and accuracy of stacked timber ends measurement are further improved by additional processing steps taken on color and halftone images after Hough transform. All of these digital processing techniques improve accuracy and speed up the process of stacked timber ends measurement.