基于光照模型和视觉特性的半色调彩色图像的实时仿真

THE REAL - TIME SIMULATION OF HALFTONE COLOR IMAGE BASED ON SHADE MODEL AND VISUAL CHARACTERISTIC

利用人类视觉系统的生理特性,提出了一种基于光照模型的半色调模式的真实感彩色图像的实时仿真方法,该方法合三维目标的成像过程,将场景中视觉2°视锥小区域的平均灰度信息转换为明暗象素点阵模式,从而实时地生成半色调模式的实感彩色图像。在微机上进行了编程设计和实验,实验结果表明,本文提出的方法不但可产生三维视觉效果舒适的真实感图像处理速度极快,图像数据量也大大降低,这为场景图像的实时仿真、输出和图像传输等提供先进的实用的数字技术。

The method of real ?time simulation of halftone realistic image based on illumination model is proposed by use of the physiological characteristic of visual system. Transforming the average gray information of small area with 2?visual pyramid angle in scene into pixel patterns, the halftone realistic images are yielded real time based on the image forming process of three dimensional object.The program design and experiments of some examples are performed on microcomputer, showing that the proposed method can produce realistic image with comfortable three dimensional visual effect with high speed and a few image data.This provides digital technology for the real - time simulation,output and transmission of scene image.