The population of Bangladesh is increasing and land is being converted from productive purposes to other uses. Present per capita agricultural land of 0.056 hectare will be decreased to 0.025 hectare by 2050....

Vignetting for an image refers to the phenomenon of brightness attenuation away from the image center, and it is a more concerned artifact for high resolution camera. This contributes to vignetting results from foreshortening of the lens when viewed from increasing angles from the optical axis....