Research on Image Segmentation of Flexographic Plate Based on OTSU Algorithm

This paper uses the improved OTSU algorithm to process the image of dot on flexographic plate and gets the best threshold which can segment the image of dot on flexographic plate accurately. The results prove that the improved OTSU algorithm can obtain the better binarization image of dot, which realizes a high accurate segmentation of the image that the dot area percentage below 10% and deletes the noise in the image. Users calculate the ratio of dot on flexographic plate area by means of the binarization image of dot. The ratio helps people control the quality of dot and error compensation, and makes the prints better.