To perform comparison with a comparison source image by acquiring the image of an image kind different from that of the comparison source image as a retrieval result and also performing image processing in the photographed image which is acquired as the retrieval result.

This image display includes: a retrieval condition adding means for adding a retrieval condition in response to the image kind of the comparison source image being the image of the comparison source of the photographed image; a retrieval means for retrieving collateral information of the photographed image, based on the retrieval condition added by the retrieval condition adding means, and acquiring the retrieved collateral information and the photographed image related to the collateral information; an image processing means for determining whether or not the image processing is performed based on the image kind of the comparison source image and the image kind of the photographed image retrieved by the retrieval means, and performing the image processing with respect to the photographed image which is retrieved by the retrieval means when the performance of the image processing is determined; and a display means for displaying the comparison source image and the photographed image acquired by the retrieval means or the photographed image image-processed by the image processing means.