相片馬賽克（或蒙太奇）是透過影像處理及比對技巧，將相片集裡的眾多相片視為嵌圖，與目標影像內的子圖進行相似程度的對比後，找出相似程度最高的嵌圖，再一一進行拼貼，進而重新排列而成為目標影像的另一種視覺表現。儘管相片馬賽克在影像處理的領域裡已是成熟的技術，但仍存在許多待加強的地方，例如馬賽克相片的精緻程度。因此，本研究研製一個馬賽克相片的製作系統，並依目標影像的內容，適應性產生不同尺寸的嵌圖，致力於馬賽克相片細節處的彰顯。系統將以四元樹影像切割和邊緣偵測的技術，區別目標影像的細節處和平滑處，再以不同尺寸的嵌圖拼貼出馬賽克相片。在相似度評估方面，本研究係應用以內容為基礎的影像檢索技術，找出目標影像各子圖與嵌圖的最近似對應，以建立輸出馬賽克相片。為了與原始目標影像更為相像，輸出的馬賽克相片也將進行色彩調整。

Photomosaic (or montage) is a technique that uses image processing and matching to cause a target image to have a new visual effect. The output mosaic image is constructed using numerous tile images in a photo gallery after a similarity measurement. Although constructing a mosaic image (or photo montage) is an established technique in the field of image processing, the technique has some disadvantages, such as a lack of detailed presentation of mosaic images. In this study, we developed a mosaic image production system according to the content of the target image to adapt the size of the corresponding tile images. Therefore, the output mosaic image could display the detailed parts using fewer tile images than the original setting. The mosaic-image generation system developed in this study partitions the target image into a quadtree based on the edge strength that divides the compound and smooth areas. For the compound area, the smaller tile images are employed to present the details of a target image. The correspondence between the subimage of a target image and the tile image in a photo gallery is established using a similarity evaluation function. For similarity with the original target image, the output mosaic image is further processed using a color adjustment function.