This paper proposes a new approach for structure based separation of image objects using fuzzy morphology. With set operators in fuzzy context, we apply an adaptive alpha-cut morphological processing for edge detection, image enhancement and segmentation. A Top-hat transform is first applied to the input image and the resulting image is thresholded to a binary form. The image is then thinned us...

This study compares the effectiveness of various image enhancement filters for improving the perceived visibility of coloured digital natural images for people with visual impairment. Generic filters were compared with Peli's adaptive enhancement and adaptive thresholding and custom-devised filters based on each subject's contrast sensitivity loss. Subjects with low vision made within filter ra...

<span>Owing to methods of acquisition, medical images often require enhancement for them serve the intended purpose computer-aided diagnosis. Most image techniques are application specific, leading introduction different images. In addition, execution time most previous is longer than necessary. Hence, there a need method that produces fast and satisfactory results when deployed several T...

Digital medical image has a potential to be manipulated by unauthorized persons due advanced communication technology. Verifying integrity and authenticity have become important issues on the image. This paper proposed self-embedding watermark using spiral block mapping for tamper detection restoration. The block-based coding with size of 3×3 was applied perform two authentication bits seven re...

[1] Irrigated crop production in the Texas high plains (THP) is dependent on water extracted from the Ogallala Aquifer, an area suffering from sever water shortage. Water management in this area is therefore highly important. Thermal satellite imagery at high temporal ( daily) and high spatial ( 100 m) resolutions could provide important surface boundary conditions for vegetation stress and wat...

Recent X-ray and weak-lensing observations of galaxy clusters have revealed that the hot gas does not always directly trace the dark matter within these systems. Such configurations are extremely interesting. They offer a new vista onto the complex interplay between gravity and baryonic physics, and may even be used as indicators of the clusters’ dynamical state. In this paper, we undertake a s...

Watermarking consists of hiding of information within a multimedia element such as an image, a text, music or a video clip. Hiding information within other information is called steganography. A TV station’s logo may serve as an example for perceptible information. Steganographical methods are needed to integrate non-perceptible information: that means this information is hidden within a multim...

Unsharp spin observables are shown to arise from the fact that a residual uncertainty about the actual alignment of the measurement device remains. If the uncertainty is below a certain level, and if the distribution misalignments is covariant under rotations, a Kochen-Specker theorem for the unsharp spin observables follows: There are finite sets of directions such that not all the unsharp spi...

Abstract Digital cameras and mobile image capture of documents are two examples new developments in the fields optical character recognition text recognition. Scans or photographic images even natural photography results can be distorted to point where OCR digitization is inaccurate. It offers a unique non-parametric unattended approach correct unwanted document distortions achieve optimal accu...