1. An image processing apparatus for performing a trapping process of increasing a density value of a pixel, comprising: an inputting unit configured to input image data including a target pixel and a peripheral pixel of the target pixel, the target pixel having a density value of a first color component and a density value of a second color component and the peripheral pixel having a density value of the first color component and a density value of the second color component; a trapping unit configured to increase, on a basis of at least the density value of the first color component and the density value of the second color component of the target pixel and the density value of the first color component and the density value of the second color component of the peripheral pixel, the density value of the second color component of the target pixel; and a printing unit configured to print the target pixel by using at least the increased density value of the second color component of the target pixel, wherein the trapping unit is configured to calculate a first trap rate by using the density value of the first color component of the target pixel, a second trap rate by using the density value of the second color component of the target pixel, a third trap rate by using the density value of the first color component of the peripheral pixel, and a fourth trap rate by using the density value of the second color component of the peripheral pixel, wherein the trapping unit is configured to calculate a final trap rate by using the first trap rate, the second trap rate, the third trap rate, and the fourth trap rate, wherein the trapping unit is configured to calculate a trap color density value by using the density value of the second color component of the peripheral pixel and the final trap rate, and wherein the trapping unit is configured to increase the density value of the second color component of the target pixel to the trap color density value.