An Adaptive Method For Sketch Curve Software

Sketch is free from any template and can give us the curve we want. However, sketch curve isn't smooth, its data points is relatively excessive, and sometimes, since our hands fluctuate, we may draw what we don't mean. Therefore, sketch curve can't satisfy entirely us. We hope there be a method to modify it to be what we mean indeed.In this paper, based on the notion of passing smoothly through the "middle" of data and analyzing sketch curve's character, I developed the concept of principal curve of sketch curve, and provide an adaptive algorithm by polygonal line for approximating principal curve. The experimental results show that the gained curve using our algorithm is smooth and can capture original curve's character, remove the noise, represent drawer's intention. Moreover, the points are relatively fewer that confirm the principal curve. All these suggested the practicality of the adaptive method in this paper.