Reduction of data with limited distortion of image formed of the data

摘要

A method for reducing data with limited distortion of an image formed of the data includes a step of determining whether reduction of the data is feasible and a step of reducing the data if reduction of the data is feasible. The step of determining whether reduction of the source data is feasible includes a step of determining whether clipping has been performed. The step of determining whether reduction of the source data is feasible includes a step of determining whether merging has been performed. The step of determining whether reduction of the source data is feasible includes a step of determining whether a difference between the width of the source data and the height of the source data is big. The step of determining whether reduction of the source data is feasible includes a step of determining whether the source data are few. The step of determining whether reduction of the source data is feasible includes a step of determining whether magnification has been performed. The step of determining whether reduction of the source data is feasible includes a step of determining whether magnification has been performed and a factor thereof is greater than a predetermined value. The step of reducing the data includes a step of eliminating lines from the data. The step of reducing the data includes a step of eliminating columns from the data.