1. A display apparatus, comprising: an image input unit that receives an image; an image processor that performs image signal generation by performing Retinex processing on an input image received by the image input unit in a state of a first color space configured with Y-value information and color information, converting an image signal which has undergone the Retinex processing into an image signal of a second color space configured with RGB information from the first color space, and generating a new image signal by correcting the input image using an absolute value of a color space vector of the converted image signal in the second color space without changing a direction of a color space vector of the input image in the second color space; and a display that displays an image on the basis of the image signal which has undergone image processing performed by the image processor, wherein the image processor performs first Retinex processing on the input image in the Retinex processing, second Retinex processing of performing second Retinex processing differing in a scheme from the first Retinex processing on the input image as the Retinex processing, and the Retinex processing includes combining processing of combining an image which has undergone the first Retinex processing with an image which has undergone the second Retinex processing in accordance with a feature of the input image.