Mr. Vinod Todwal, Ms. Jyoti. “Image Contrast Enhancement With Brightness Preserving Using Curvelet Transform and Multilayer Perceptron”. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering, vol. 5, no. 5, May 2019, pp. 13 -, http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1958.