Digital image archival requires less physical storage space, allows for rapid storage and retrieval and avoids loss in image quality over time or with image duplication compared with film storage. Because medical imaging data are critically important and, by law, must be stored in a safe, accessible manner, it is imperative not to have one computer error destroy all copies of the image data. Se...

This paper presents an automatic digital image stabilization system that is able to handle large image displacements. The system has been implemented in a parallel pipeline image processing hardware (Datacube Max Video 200) connected to a SUN SPARCstation 20/612 via a VME bus adaptor. Our technique is based on a two-dimensional feature-based multi-resolution motion estimation algorithm, that tr...

With the large cost involved in launching satellites, probes, sensors to keep an eye on the resources and entities of commercial value necessitates to strengthen the processing of procured data at ground stations. The emphasis is laid on enhancing the quality for easy human interpretation and reducing the quantity for easy storage and transmission. The first sine qua non involves the capturing ...

– Nearly a sphere with an average diameter of approximately 20mm – Enclosed by various membranes – Cornea and sclera outer cover ∗ Cornea: Transparent convex anterior portion of the outer fibrous coat of the eyeball that covers the iris and the pupil and is continuous with the sclera ∗ Sclera: Tough white fibrous outer envelope of tissue covering all of the eyeball except the cornea – Choroid ∗...

Abstract The image inpainting is an important problem image processing. It is a difficult problem to recover an image with bigger hole, and the existing algorithms are not give good method. Based on fractal theory, in this paper, we present a new inpainting method, which using the total info of image effectively. The relation of fractal dimension and the size range block is discussed, and give ...

The integrity of a digital image is paramount in fields such as forensics, medical imaging, and military and industrial photography. Courts make decisions affecting an individual’s liberty based, in part, on images presented as evidence. Physicians and researchers make diagnoses based on imaging—holding people’s lives in the balance. Military photographs may determine target locations based on ...

2. A sampled (but not quantized) image, whose brightness before quantization, in each spatial position, can take values in the range [0mV;250mV], has the linear histogram of its brightness represented (approximately) in Fig. 2.a). After the quantization, the histogram of the resulting digital image is the one in Fig. 2.b). Then, most likely, the quantizer that was used is: a) an 8 bit uniform q...

(a) Aerial images: • LANDSAT images from one year compared to ones from the next year. Slightly different area covered, different orientation angle, illumination, crops, etc. • Guidance systems: compare an image of the ground with a stored reference image (b) Medical images: • CT chest scans taken 6 months apart: has the tumor gone away or gotten worse? Some difficulties: Different lung sizes b...

When several gray midtones are present, like a black and white photo, two values are no longer sufficient to encode all the possible gray intensities, and to each pixel must be associated a numerical value, proportional to the brightness of that point. Typical choices for these values fall in the ranges 0 31 or 0 255 (requiring respectively 4 and 8 bits for each pixel). This second kind of imag...