Processing geospatial images using GPU

The art of computer programming has evolved symbiotically in the world of parallel processors. Thus, a computer program cannot be considered merely as a sequence of step by step instructions as it was earlier. Almost all the serial processors have now been replaced by their parallel counterparts. The present paper discussesapplication of CUDA, which is the most used platform for developing GPU softwares, for atypical GIS based system. To exemplify this, a terrestrial image was processed upon by a CUDA based system and the methodology has been presented with a minute consideration of majority of the nuances involved. The paper also attempts a juxtaposing comparison of GPU and CPU architecturesin accordance with the GIS.