| タイトル | Investigation of an electronic image enhancer for radiographs |
| 本文（外部サイト） | http://hdl.handle.net/2060/19720010803 |
| 著者（英） | Vary, A. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1972-01-01 |
| 言語 | eng |
| 内容記述 | Radiographs of nuclear and aerospace components were studied with a closed-circuit television system to determine the advantages of electronic enhancement in radiographic nondestructive evaluation. The radiographic images were examined on a television monitor under various degrees of magnification and enhancement. The enhancement was accomplished by generating a video signal whose amplitude is proportional to the rate of change of density. Points, lines, edges, and other density variations that are faintly registered in the original image are rendered in sharp relief. Examples of the applications of this mode of enhancement are discussed together with the system's dynamic response and resolution. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 72N18453
E-6831
NASA-TM-X-68025 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/204033 |
