The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Sparse representation is proven to be a promising approach to image super-resolution, where the low-resolution (LR) image is usually modeled as the down-sampled version of its high-resolution (HR) counterpart after blurring. When the blurring kernel is the Dirac delta function, i.e., the LR image is directly down-sampled from its HR counterpart without blurring, the super-resolution problem becomes...
In this paper, we focus on the bit-level processing based image secret sharing framework which consists of the so-called input-agnostic and input-specific solutions. It will be demonstrated that both these subclasses satisfy the essential perfect reconstruction property while making fundamental differences in processing the secret image and protecting the visual data
This paper introduces a new watermarking solution for single-sensor digital cameras. The proposed method embeds visible watermarks in the color filter array (CFA) domain of captured images and uses the demosaicking process to transfer the watermark from the gray-scale CFA image to the restored, demosaicked, color image. Thus, the approach allows for cost-effective image protection and the enforcement...
Single-sensor imaging pipelines comprised of various image compression and demosaicking solutions are presented. Since the end-user usually inspects captured images available in the decompressed/demosaicked format, three basic configurations which perform compression in the demosaicked domain or the full-color filter array domain are tested and evaluated in terms of visual quality of the final decoded...
A new solution for cDNA microarray image acquisition and processing is introduced. The proposed solution uses a two-color filter array placed on top of a single image sensor to capture the two-channel cDNA microarray data as a single monochromatic image, thus reducing twofold the memory and storage space. The vectorial nature of the cDNA microarray data is restored using the proposed image processing...
This paper presents a unique spectral modelling approach suitable for digital camera image processing. The proposed vector model combines both the magnitude and directional characteristics of the vectorial RGB color inputs and enforces orientation constraints in an orthogonal color system to produce outputs which can simultaneously match luminance and chrominance characteristics of the captured image...
In this paper, a new vector directional approach for impulse noise detection and filtering in color images is provided. The novelty of this approach lies in the use of vector order-statistics achieved by the ordering according to the sum of angles between input vector samples, in other words directional information, as the base for impulse detector. Thus, the input samples are separated into two classes...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.