Nonlinear Anal R global Appl 4, 625 637. 4. Gardner. M. R and W. R. This quantization is almost approximately combining identical colours to engineering single representative colour. The intention of having engineering distance function is to quantify matlab dissimilarity between any two photographs. It enhances matlab usefulness engineering matlab colour descriptor, as an example, matlab colour descriptor can extract facets for all photographs and store them in engineering database and then throughout matlab image retrieval section this distance feature might be used to retrieve matlab image with minimum distance to matlab original question picture. In order to build engineering distance characteristic for CCV, we use matlab calculated coherent and incoherence aspects C and N for each color in our distance feature to compare among any two images let’s name them engineering and b, in matlab following equation. Now we see that Color Coherence Vector method considers information about colour spatial distribution among pixels in its coherence component. But this method has some drawbacks.