• S. Saravanan
• M. Kamarasan

In agriculture the most important factors from the farmers point of view is the quality and quantity of product they yield. Soil is the most essential natural resources that have been recognized used to describe the degree of acidity or basicity which affect nutrient availability and ultimately plant growth pH of 7.0 is neutral, and soils above or below this value are either alkaline or acidic, respectively. Soil colour is visual perceptual property corresponding in humans to the categories i.e. red, green, and blue and others. Soil colours are the parts of visual perceptual property where digital values of red, green and blue (RGB) provide a clue for spectral signature capture of different pH in soil. The pH properties of the soil have been used to describe the degree of acidity and basicity which ultimately affects the growth of the crops. So in this paper the review has been carried out for the determination of pH level in the soil by digital image processing.

agriculture, soil, pH level, neutral, RGB, Digital image processing

"A REVIEW ON pH LEVEL DETERMINATION OF SOIL USING IMAGE PROCESSING TECHNIQUES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.872-888, July-2018, Available :http://www.jetir.org/papers/JETIR180Z020.pdf

"A REVIEW ON pH LEVEL DETERMINATION OF SOIL USING IMAGE PROCESSING TECHNIQUES ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp872-888, July-2018, Available at : http://www.jetir.org/papers/JETIR180Z020.pdf