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In this paper, a new automatic histogram equalization algorithm which is based on Bi-Histogram Equalization (BHE) is proposed. The proposed method preserves the brightness and also improves the contrast. Mean value of the intensity is used for selecting the thresholds to avoid over enhancement also improving contrast of the image. The calculated mean limits the valley points to divide the histogram...
In this paper we explore the efficacy of simplex projection for land cover (LC) information mining. LC is the observed biophysical cover on the surface of the Earth and describes how much of a region is covered by forests, wetlands, impervious surfaces, etc. LC information can be extracted by processing remotely sensed data acquired through sensors mounted either on space borne satellites or aircrafts...
Linear spectral unmixing remains an important subject of research in image processing community. It deals with disintegrating a pixel spectrum into its constituent spectra through a mixture model assuming that observed data are linear mixtures of two or more objects, representing a mixed pixel. The linear mixture model allows a number of target materials (classes) to be present, each contributing...
In the satellite images the noise is present such as mist, clouds etc., to remove the noise the Haar wavelet transforms are applied. Using the Image segmentation algorithm the major issue Deforestation is evaluated by comparing the image taken from the year 1939 and 2000. Deforestation is a serious issue that most nations face today. Deforestation is primarily due to the urbanization. Most nations...
This paper represents unsupervised method of color based segmentation using clustering to classify vegetated and urban area in Satellite images. Now a day due to the progresses in spatial resolution of satellite imagery, the methods of segment-based image analysis for generating and updating geographical information are becoming more important. In this work, one method proposed a segmentation of various...
In the recent years due to over exploitation and over dependence on ground water resources in agricultural sector an unprecedented drought conditions in the state has occurred. At this critical juncture, effective evaluation and management strategies to utilize the ever-depleting water resources in an optimum way with the help of a decision support information system for water resource evaluation...
GPS satellites transmission consists of two pseudorandom noise codes, modulated on two carriers. For position determination of a GPS receiver on the earth two parameters, satellite position and pseudo ranges of each Satellite Vehicle are to be estimated by decoding the Navigation message from each satellite which depends on the Carrier to Noise Ratio (C/N0) at the receiver. GPS employs spread spectrum...
Several future spacecraft missions are envisioned that have small ride-along satellites to inspect and service a large parent satellite. The so called escort or inspector satellites orbit around the parent satellite and with the help of onboard imaging capabilities and other sensors assess spacecraft damage in the event of an on-orbit mishap. The design of relative periodic orbits for such missions...
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