نتایج جستجو برای: elliptic image sharpening

تعداد نتایج: 409835  

2011
Roberto Canavosio-Zuzelski

With the recent advancements in image processing techniques and the increasing availability of high resolution satellite imagery, one has an increased ability to characterize human attributes. This paper will study the effects that image fusion has on the classification of Quickbird satellite imagery over a rural area in Eastern India. Two panchromatic sharpening algorithms will be used and com...

2007
Takayuki Fujiwara Kazuhiko Yamaashi Hiroyasu Koshimizu

We have discussed that the co-occurrence frequency image (CFI) defined based on the co-occurrence frequency histogram of the gray value of an image has a potential to introduce a new scheme for image feature extraction. This paper proposes a couple of filters for image enhancements of such as sharpening and smoothing filters. These filters are very similar to but quite different from those whic...

2013
Geun-Young Lee Sung-Hak Lee Hyuk-Ju Kwon Tae-Wuk Bae Kyu-Ik Sohng

In high dynamic range rendering technology, tone mapping operators cause loss in terms of image quality. In order to compensate the defect, we use the base-detail decomposition before tone mapping and attempt to compensate details in bright area of an image using a surround-adaptive sharpening filter. It is effective to bright surround images which are sensitive to human eyes. It is confirmed t...

Journal: :CoRR 2017
Longguang Wang Zaiping Lin Jinyan Gao Xinpu Deng Wei An

Single image super-resolution aims to generate a high-resolution image from a single low-resolution image, which is of great significance in extensive applications. As an ill-posed problem, numerous methods have been proposed to reconstruct the missing image details based on exemplars or priors. In this paper, we propose a fast and simple single image super-resolution strategy utilizing patch-w...

Journal: :IEEE Transactions on Geoscience and Remote Sensing 2021

This article addresses the problem of remote sensing image pan-sharpening from perspective generative adversarial learning. We propose a novel deep neural network-based method named pansharpening GAN (PSGAN). To best our knowledge, this is one first attempts at producing high-quality pan-sharpened images with networks (GANs). The PSGAN consists two components: network (i.e., generator) and disc...

Journal: :The Journal of the Institute of Image Information and Television Engineers 2002

2010
Guotong Feng Mohammed Shoaib Edward L. Schwartz M. Dirk Robinson

Recent research demonstrates the advantage of designing electro-optical imaging systems by jointly optimizing the optical and digital subsystems. The optical systems designed using this joint approach intentionally introduce large and often space-varying optical aberrations that produce blurry optical images. Digital sharpening restores reduced contrast due to these intentional optical aberrati...

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