點矩陣全像片與噴墨印刷整合之色域表現研究

Abstract

點矩陣全像片之影像在不同的角度觀察，可以看到不同的光影變化效果，還能增加產品的防偽功能。為了在證實點矩陣全像結合噴墨印刷科技的確可以增加產品的視覺效果，本研究結合噴墨印刷與點矩陣全像片的動態效果，並且找出點矩陣全像片結合噴墨印刷所能表現的顏色色域。實驗方式以噴墨印刷標準色塊與點矩陣全像片色塊模擬全像片與噴墨印刷色域的範圍，在色彩空間(CIE-xy)中比較其差異。實驗結果發現結合兩者的優點確實可以增強印刷品的視覺效果及擴張色域表現，並且找出點矩陣全像與印刷整合的對位不準解決方法，可以利用直線偵測的技術配合良好的打光角度，檢測整合時對位不準的情況。本研究也實作出台灣代表性建築的煙火表現，以全像術呈現煙火綻放與建築物的變圖光影變化，實現複雜影像中點矩陣全像與噴墨印刷的整合效果。

Dot matrix hologram can display different images at varied viewing angles and it possesses wider color gamut than printed image. In order to demonstrate animation effect in printed image, the integration of hologram and printed image is carried out. We use standard color chart by inject print and holographic color chart to simulate their color gamut, and compare both of them in CIE-xy color space to characterize their performance. The experimental results can verify that our method can display attractive visual effect. To illustrate the result from this research, an animated firework around a renowned building is designed to display dynamic effect from this complex printed image.