Endoscope image enhancement method based on quadratic weighted fast steering filtering

• Main Authors: NIE LINCHUAN, GU CHANGMING, LI XIANLONG, WANG GUO-XIN
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention designs an endoscope image enhancement method based on quadratic weighted fast steering filtering, and belongs to the field of image processing. The method is used for processing an endoscope image, and comprises the following steps: firstly, carrying out R, G and B three-channel component extraction on an original Bayer-format endoscope image; converting the image from an RGB three-channel component to a YUV color space; carrying out contrast stretching on the brightness component Y, then carrying out secondary weighting fast steering filtering enhancement, and carrying out wavelet transform on a detail layer of the brightness component Y to filter noise; and finally, the enhanced brightness component Y and the chrominance components U and V are combined and output. The image processed by the algorithm is enhanced in the aspect of detail texture information, and noise existing in the enhancement process is filtered out. 本发明设计一种基于二次加权快速导向滤波的内窥镜图像增强方法，属于图像处理领域。该方法针对内窥镜图像进行处理，首先将原始Bayer格式内窥镜图像进行R、