双三次插值,英文是Bicubic interpolation。 双三次插值是一种更加复杂的插值方式,它能创造出比双线性插值更平滑的图像边缘。双三次插值方法通常运用在一部分图像处理软件、打印机驱动程序和数码相机中,对原图像或原图像的某些区域进行放大。Adobe Photoshop CS 更为用户提供了两种不同的双三次插值方法:双三次插值平滑化和双三次插值锐化。
In practice, simple interpolation methods, such as nearest-neighbor, linear, bilinear, and bicubic interpolation are most widely used. However, these methods usually yield an interpolated image with blurred edges, which degrade the perceptual quality of the image.
常见的插值方法有近邻插值、双线性插值、双三次插值等,计算量比较小,但是图像插值后常常出现方块效应或细节退化(边缘模糊)。
参考来源 - 多分辨率医学图像配准技术及自适应图像插值技术的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
并采用双三次插值方法对图像大小归一化处理。
While in the image normalization, the Bicubic interpolation method is used in it.
双三次插值是图像空域变换的经典算法,可用于图像旋转和放缩等灰度插值。
Bicubic interpolation is a classical algorithm used in spacial transformation of image such as image rotation and zooming.
对分解后的图像结构进行分析,提出双三次插值与方向插值相结合的方法,对分解后图像插值。
By analyzing the structure of the decomposed image, the combination method of bi-cubic interpolation and the direction interpolation is proposed.
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