Filtering Projection in Image ProcessingMoscow, Russia
对图像使用自定义滤波器(2D convolutin) 4.2 2D卷积(图像滤波)(Image Filtering) 对于一维信号,图像也可以用各种低通滤波器(LPF)、高通滤波器(HPF)等进行滤波。LPF有助于去除噪声或模糊图像。 HPF过滤器有助于查找图像中的边缘。 OpenCV提供了一个函数cv2.filter2D(),用于将内核与图像进行卷积。例如,我们将尝试对...
GPUs are capable of executing the same filtering algorithms as CPU-based image-processing tools, but they also can invoke new hardware-accelerated methods. In Chapter 21, "Real-Time Glow," Greg James and John O'Rorke give us an example of how 3D gameplay can be enhanced with 2D image ...
(e) original image with shot noise; (f) Gaussian filtered; (g) median filtered; (h) bilaterally filtered. 中值滤波、阿尔法截尾法中值滤波、加权法中值滤波。 滤波器大的保边效果好!而高斯滤波对边缘不好。但中值也好不到哪里去,对裂痕的平滑效果不好。 中值滤波适合去除椒盐噪声。 双边滤波器 同时考虑...
Core Image optimizes filtering by reordering the three chained filters and concatenating them into a single image processing kernel, saving computation and rendering cycles. In addition to trying out the built-in filters for a fixed effect, you can combine filters in certainFilter Recipesto accomplis...
[1998 ICCV] Bilateral Filtering for Gray and Color Images [2008 TIP] Adaptive Bilateral Filter for Sharpness Enhancement and Noise Removal 2. Color 如果对颜色的形成有一定的了解,能比较深刻的理解一些算法。这方面推荐冈萨雷斯的数字图像处理中的相关章节以及Sharma在Digital Color Imaging Handbook中的第一章...
Code Setting Up OpenGL Texture Properties and FilteringCopy Buffer::Buffer(int nWidth, int nHeight) : _nReferenceCount(0), _nWidth(nWidth), _nHeight(nHeight) { // Set up the texture properties glGenTextures(1, &_hTexture); glBindTexture(GL_TEXTURE_RECTANGLE_NV, _hTexture); ...
Hardware-proven FPGA image processing blocks available include: Edge and corner detection Bilateral and median filtering Conversions such as color space, chroma resampling, gamma correction, and bird’s-eye view Morphological closing, opening, dilation, and erosion ...
Chapter 3,Advanced Image Processing with ImageJ, describes more advanced imaging analysis techniques, such as modifying the pixel values of different images and performing local measurements. It also covers image filtering in the spatial and frequency domains. ...
Guided image filtering uses context from a separate image, known as a guidance image, to influence the output of image filtering. Like other filtering operations, guided image filtering is a neighborhood operation. However, guided image filtering takes into account the statistics of a region in the...