1. An image processing system comprising: an image analysis engine configured to analyze an input image and generate metadata about the input image; an indexing engine configured to structuralize and organize the metadata and generate index data based on the metadata; a search engine configured to extract index data matching a search condition and image data corresponding to the index data matching the search condition, from the input image; and a browsing engine configured to generate a heatmap based on the extracted index data and image data and display the heatmap and an image matching the search condition on a screen.