Hyperspectral image processing is an important research topic in remote sensing. The effect of atmosphere, especially cloud shadows need to be taken care of in hyperspectral image processing analysis. In this paper, a shadow-invariant feature extraction technique based on unsharp mask filtering is prop...
digital imaging, unsharp mask filteringsimulated lung noduleTo compare the performance of various types of unsharp mask filter applied in storage-phosphor-based computed radiography (SR), and to improve the detection of faint nodules of the lung cancer type.A total of 120 SR radiographs were ...
Unsharp-mask guided filtering with learning Requirements Training here Testing Please cite our paper when you use this code. @article{shi2021unsharp, title={Unsharp Mask Guided Filtering}, author={Shi, Zenglin and Chen, Yunlu and Gavves, Efstratios and Mettes, Pascal and Snoek, Cees GM}, jou...
TU‐H‐206‐04: An Effective Homomorphic Unsharp Mask Filtering Method to Correct Intensity Inhomogeneity in Daily Treatment MR Images Purpose:The daily treatment MRIs acquired on MR-IGRT systems, like diagnostic MRIs, suffer from intensity inhomogeneity issue, associated with B1 and B0 in... D Ya...
Because \(\lambda\) is a constant independent of image content, \(f_{out} \left( {x,y} \right)\) is a linear unsharp mask image signal. HP and LP represent sharpening and smoothing filtering processes, respectively. The commonly used spatial sharpening filtering includes Sobel filtering and...
Unsharp Mask(USM)锐化算法的的原理及其实现。 2013-05-19 00:05 −Unsharp Mask是图像增强方面的一个比较有效的工具,其实际上是一类算法的总称,而不是特指Photoshop中的USM锐化。但是PS提供的USM锐化确实同类算法中的佼佼者,既能增强边缘,又使得平滑变化的区域中存在的噪音不会得到同步增强。... ...
1. 锐化滤镜 ...制点外,还新增了选区控制点,为用户的画面细节提供非锐化滤镜(Unsharp Mask)和D-Lighting等增强功能,并可直接显示在 … down.tech.sina.com.cn|基于752个网页 2. 反遮罩锐化 AE中英文对照 ... Sharpen → 锐化Unsharp Mask→反遮罩锐化Arithmetic → 运算 ... ...
Storage phosphor versus screen-film radiography: effect of varying exposure parameters and unsharp mask filtering on the detectability of cortical bone def... Diagnostic performance with storage phosphor radiography is influenced by exposure parameters and digital filtering algorithms. The authors compared th...
_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) static const AVOption unsharp_opencl_options[] = { { "luma_msize_x", "Set luma mask horizontal diameter (pixels)", OFFSET(luma_size_x), AV_OPT_TYPE_FLOAT, { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, { "lx", "Set luma mask ...
(UnsharpContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM #define MIN_SIZE 3 #define MAX_SIZE 23 static const AVOption unsharp_options[] = { { "luma_msize_x", "set luma matrix horizontal size", OFFSET(lmsize_x), AV_OPT_TYPE_INT, { .i64 = 5 }, ...