• Samreen Kaur
• Dr. V.K.Banga
• Er. Gurjit Singh

Color constancy is a technique to compute effect of different light sources on an obtained image. The obtained image generally contains actual scene radiance, illumination if scene, and the characteristics of the visual camera. However, it is found that the images obtained under different light sources do not provide true scene radiance. That means there is a great effect of light source on the obtained image. Therefore, the primary objective of color constancy is to restore actual image. Many methods have been proposed so far to handle this issue. Existing techniques have an obvious disadvantage of which the lighting supply along the field will be spectrally uniform. This specific presumption is sometimes broken since there is much more than one lighting supply lighting the actual scene. In this paper, to handle these issues, a fourth order partial differential equations-based weighting factor based color constancy technique is proposed. Thereafter, soft computing based image enhancement-based image enhancement technique is also designed and implemented to enhance the results. Ultimately, the effectiveness in the planned technique is evaluated by using benchmark images. Extensive experiments have been considered to evaluate the effectiveness of the planned technique. It is found that the proposed technique outperforms the competitive color constancy techniques.

Color Constancy, Grey World, Grey, Edge Hypothesis, White Patch Retinex, Gamut Mapping .

"RESTORATION OF COLOR AFFECTED IMAGES USING SOFT COMPUTING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.373-379, June 2019, Available :http://www.jetir.org/papers/JETIR1908521.pdf

"RESTORATION OF COLOR AFFECTED IMAGES USING SOFT COMPUTING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp373-379, June 2019, Available at : http://www.jetir.org/papers/JETIR1908521.pdf