数码提花色阶归并的对称多阈值误差扩散方法

Symmetric multi-threshold error diffusion method for image color merging of digital jacquard woven fabric

针对数码提花工艺所能表达的色阶数有限,织物图像容易出现色阶过渡不匀的问题,在图像色阶归并处理的过程中,引入误差扩散算法,提出一种适用于数码提花机织物图像色阶归并的对称多阈值误差扩散方法。该方法能够改善图像色阶归并的效果,并避免传统误差扩散方法带来的图像偏移现象。对该方法的应用效果进行客观分析和进一步的实际织造验证,结果表明该方法能够在不改变现有组织结构和织造工艺的基础上,在视觉上改善图像色彩的归并效果。该方法应用方便,具有可行性和实用性,为数码提花机织物图像色阶归并提供新途径。

The number of colors expressed by digital jacquard technology is limited,and the color of the fabric is prone to be uneven.For the above problems,error diffusion algorithm was introduced in the process of image color merging,and a symmetric multi-threshold error diffusion method was proposed for digital jacquard woven fabric.The method can improve the effect of color gradation merging,and avoid the image offsetting caused by traditional error diffusion method.The objective analysis and practical weaving verification of the method show that the method can improve the effect of color merging without changing the existing fabric structure and weaving technology.The method is convenient,feasible and practical,providing a new way for image color merging of the digital jacquard woven fabric.