Double Line Image Rotation
Double Line Image Rotation
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DOI：
10.1109/tip.2015.2440763
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发表时间：
2015-11-01
影响因子：
10.6
通讯作者：
Kahaki, Seyed Mostafa Mousavi
中科院分区：
文献类型：
--
作者：
Ashtari, Amir Hossein;Nordin, Md Jan;Kahaki, Seyed Mostafa Mousavi
本文提出了一种快速的图像旋转算法，同时保持其质量。该方法根据原始图像中的垂直线或水平线以及它们在目标图像中的旋转方程来旋转图像。所提出的方法是一个一遍的方法，确定一个基线方程的目标图像和提取所有对应的像素的基线。执行浮点乘法以计算目标图像中的基线，并且使用整数加法或减法以及逻辑调整从目标图像中的基线像素坐标计算其他线坐标。为了避免目标图像中旋转像素之间的异质距离，每条线旋转到两个相邻的线。根据计算速度和精度的分析结果，所提出的方法在速度和质量方面产生良好的性能。
This paper proposes a fast algorithm for rotating images while preserving their quality. The new approach rotates images based on vertical or horizontal lines in the original image and their rotated equation in the target image. The proposed method is a one-pass method that determines a based-line equation in the target image and extracts all corresponding pixels on the base-line. Floating-point multiplications are performed to calculate the base-line in the target image, and other line coordinates are calculated using integer addition or subtraction and logical justifications from the base-line pixel coordinates in the target image. To avoid a heterogeneous distance between rotated pixels in the target image, each line rotates to two adjacent lines. The proposed method yields good performance in terms of speed and quality according to the results of an analysis of the computation speed and accuracy.