頁籤選單縮合
題 名 | 縮影片資料回饋與解像率及背景密度之關係研究 |
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作 者 | 吳相鏞; | 書刊名 | 教育資料科學 |
卷 期 | 19:1 1981.09[民70.09] |
頁 次 | 頁57-77 |
關鍵詞 | 密度; 解像率; 資料; 縮影片; |
語 文 | 中文(Chinese) |
英文摘要 | The purposes of microfilming a document is not for saving space only, but also with a view' to feeding back the information in microfilms properly. The distribution of microfilms must be done through the process of duplication and the condition of suceess in duplication depends not only on the quality of camera-films but Ort the density and resolution of microfilms produced. Microfilming a document containing Chinese characters,' the quality requirement may be higher than that of a document containing only Romanic letters. In this paper, it compares the different requirements by microfilming and duplicating the test object which contains measured Chinese characters and Romanic letters, and generates a defferent requirement for each other. |
本系統中英文摘要資訊取自各篇刊載內容。